Paul James, M.D. and Metropolitan Houston Surgery Associates, PLLC v. Angie Sam ( 2021 )


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  • Opinion issued August 3, 2021
    In The
    Court of Appeals
    For The
    First District of Texas
    ————————————
    NO. 01-20-00260-CV
    ———————————
    GEORGE T. KUHN, M.D., GEORGE T. KUHN M.D., P.A. D/B/A
    WOMEN’S HEALTHCARE ASSOCIATES, PAUL JAMES, M.D.,
    METROPOLITAN HOUSTON SURGERY ASSOCIATES, PLLC, ADAM
    MORALES, M.D., WEST HOUSTON RADIOLOGY ASSOCIATES, L.L.P.,
    AND SINGLETON ASSOCIATES, P.A. D/B/A RADIOLOGY PARTNERS
    GULF COAST, Appellants
    V.
    ANGIE SAM, Appellee
    On Appeal from the 151st District Court
    Harris County, Texas
    Trial Court Case No. 2019-45200
    MEMORANDUM OPINION
    In this interlocutory appeal,1 appellants, George T. Kuhn, M.D., George T.
    Kuhn M.D., P.A., doing business as Women’s Healthcare Associates (“Women’s
    Healthcare”), Paul James, M.D., Metropolitan Houston Surgery Associates, PLLC
    (“Metropolitan Houston”), Adam Morales, M.D., West Houston Radiology
    Associates, L.L.P. (“West Houston Radiology”), and Singleton Associates, P.A.,
    doing business as Radiology Partners Gulf Coast (“Radiology Partners”)
    (collectively, “appellants”), challenge the trial court’s order overruling their
    objections and denying their motions to dismiss the health care liability claims2
    brought against them by appellee, Angie Sam, in her suit for negligence. In multiple
    issues, appellants contend that the trial court erred in overruling their objections and
    denying their motions to dismiss Sam’s claims against them.3
    We affirm.
    Background
    In her petition, Sam alleges that on April 12, 2018, she was admitted to St.
    Joseph Hospital with pelvic pain, uterine fibroids, and a right ovarian cyst. Sam
    underwent an exploratory laparotomy,4 a lysis of adhesions, a right
    1
    See TEX. CIV. PRAC. & REM. CODE ANN. § 51.014(a)(9).
    2
    See id. § 74.001(a)(13) (defining “[h]ealth care liability claim” (internal quotations
    omitted)).
    3
    See id. § 74.351 (governing expert reports).
    4
    A “laparotomy” is a “surgical incision of the abdominal wall.” Laparotomy,
    MERRIAM-WEBSTER’S COLLEGIATE DICTIONARY (11th ed. 2014).
    2
    salpingo-oophorectomy,5 and a supracervical hysterectomy.6 The friable adhesions
    found during surgery required “sharp and cautery dissection to free the uterus and
    right [fallopian] tube and ovary for removal.” Sam experienced excessive blood loss
    due to the adhesions which required an “inter-operative blood transfusion.” “[A]
    decision to stop with a supra[cervical] hysterectomy was made.” Extensive cautery
    and suturing were required “to obtain hemostasis.” According to Sam, “[t]he frozen
    section on the ovarian cyst was benign and cystoscopy was normal prior to [the]
    closing [of her] abdomen.” (Internal quotations omitted.)
    Soon after surgery, Sam developed pain, fever, nausea, and vomiting. A
    computed tomography (“CT”) scan of Sam’s abdomen was done on the third day
    after her surgery. The CT scan showed “a collection of fluid and [a] probable blood
    clot in [Sam’s] pelvis.”    A drain was placed by the interventional radiology
    department, which “noted that 50 cc of brown and bloody fluid was obtained from
    [Sam’s] pelvis at th[e] time.” Sam continued to experience pain and fever and
    5
    A “[s]alpingo-oophorectomy” is the “[surgical] excision of a fallopian tube and an
    ovary.” See Young v. Pinto, No. 09-08-299-CV, 
    2008 WL 4998346
    , at *8 n.3 (Tex.
    App.—Beaumont Nov. 26, 2008, no pet.) (mem. op.) (internal quotations omitted).
    6
    A “supracervical hysterectomy” is the “surgical removal of the uterus.” See Tex.
    Tech Univ. of Health Scis. Ctr. v Lozano, 
    570 S.W.3d 740
    , 743 n.1 (Tex. App.—El
    Paso 2018, pet. denied); see also Young, 
    2008 WL 4993846
    , at 8 n.3.
    3
    leukocytosis.7 On the sixth day after Sam’s surgery, another CT scan was taken, and
    it showed “air, fluid, and contrast leakage within the peritoneal cavity.”8 After Sam
    was diagnosed with a bowel perforation, “with evidence of wide spread [sic]
    peritoneal cavity involvement,” a decision was made to treat Sam’s bowel
    perforation conservatively by draining the area even though there was “fluid and
    bowel gas . . . throughout the peritoneal cavity.” This course of treatment continued
    for the next four days, and Sam’s condition continued to deteriorate.
    On the tenth day after Sam’s initial surgery, Sam underwent an exploratory
    laparotomy, a repair of her bowel perforation, and a diverting ileostomy. 9 The
    ileostomy was required because of a “marked inflammatory reaction to bowel
    leakage” that had occurred for an extended length of time. After Sam’s second
    7
    “[L]eukocytosis” is “an increase in the number of white blood cells in the circulating
    blood.” Leukocytosis, MERRIAM-WEBSTER’S COLLEGIATE DICTIONARY (11th ed.
    2014).
    8
    The “peritoneal cavity” is “the space within a person’s abdomen that contains the
    intestines, stomach, and liver.” Univ. of Tex. M.D. Anderson Cancer Ctr. v.
    McKenzie, 
    578 S.W.3d 506
    , 510 n.2 (Tex. 2019).
    9
    An “ileostomy” is “a surgical operation in which a damaged part is removed from
    the ileum,” the third portion of the small intestine, “and the cut end [is] diverted to
    an artificial opening in the abdominal wall.” Ileostomy, OXFORD DICTIONARY OF
    ENGLISH (2d ed. 2009); see also Thetford v. State, No. 02-18-00488-CR, 
    2021 WL 278913
    , at *1 n.3 (Tex. App.—Fort Worth Jan. 28, 2021, pet. filed) (mem. op., not
    designated for publication) (physician described ileostomy as follows: “[W]e
    essentially brought the small intestine to the skin and bypassed the large intestine,
    essentially tak[ing] it out of the equation so the small intestine just empties to a bag
    instead of going through the large intestine.” (second alteration in original) (internal
    quotations omitted)).
    4
    surgery, she suffered peritonitis and sepsis. Sam’s condition slowly improved, and
    she was discharged from St. Joseph Hospital on April 29, 2018.
    Sam brings health care liability claims against appellants, alleging that Sam
    was their patient and appellants had a duty to act as reasonably prudent health care
    providers. Drs. Kuhn, James, and Morales breached the applicable standards of care
    required for treating and caring for Sam in many ways, including, but not limited to,
    failing to recognize her bowel perforation, failing to diagnose her bowel perforation
    until the sixth day after her initial surgery, and failing to consult about immediately
    exploring Sam’s abdomen to repair her bowel perforation upon its diagnosis. Sam
    also alleges that Women’s Healthcare, Metropolitan Houston, West Houston
    Radiology, and Radiology Partners are vicariously liable for the acts and omissions
    of Drs. Kuhn, James, and Morales. Sam requests damages for past and future
    physical pain and suffering, past and future mental anguish, past and future physical
    impairment, past and future medical expenses, past and future disfigurement, loss of
    earnings, future lost earning capacity, exemplary damages, and interest.
    To support her claim, Sam timely served appellants with an initial expert
    report authored by J.M. Paine, M.D., F.A.C.O.G.10 Appellants objected to the initial
    10
    Dr. Paine attached his curriculum vitae (“CV”) to his expert report.
    5
    expert report, and the trial court signed an agreed order allowing Sam thirty days to
    supplement or amend Dr. Paine’s initial expert report.11
    Sam timely served appellants with a supplemental expert report authored by
    Dr. Paine. Dr. Paine’s supplemental expert report states that it is “intended sole[ly]
    to supplement[] [and] not to replace[] [his] prior report.”12
    In his expert reports, Dr. Paine states that he is a licensed physician and is
    board certified in obstetrics and gynecology. He has been practicing in the field of
    obstetrics and gynecology for thirty-five years. Currently, he is a member of the
    teaching faculty as an associate professor in the department of obstetrics and
    gynecology at the University of Texas Health Science Center in San Antonio, Texas.
    In his position as an associate professor, he trains residents and students in obstetrics
    and gynecology. He is also actively practicing medicine in the field of obstetrics
    and gynecology.
    Dr. Paine states that he has extensive experience in the field of obstetrics and
    gynecology, and he has performed thousands of hysterectomies during his career.
    He has knowledge of the accepted standards of medical and surgical care required
    for patients needing hysterectomies. This includes knowledge of the standards of
    11
    See TEX. CIV. PRAC. & REM. CODE ANN. § 74.351(c).
    12
    Dr. Paine attached his CV to his supplemental expert report.
    6
    pre-operative, inter-operative, and post-operative care required for patients who
    have hysterectomies.
    When Dr. Paine treats patients requiring hysterectomies, he provides
    pre-operative, inter-operative, and post-operative care to his patients. Post-operative
    care includes “following [a] patient after [a] surgery is complete[] to diagnose and
    treat any complications that may arise from the surgical procedure.” According to
    Dr. Paine, this case involves the purported failure of Drs. Kuhn, James, and Morales
    to appropriately care for and treat Sam after a hysterectomy, and Dr. Paine is familiar
    with the type of post-operative care a patient, such as Sam, should receive and how
    post-operative complications, like those experienced by Sam, should be managed
    and treated.
    In his expert reports, Dr. Paine states that on April 12, 2018, Sam was admitted
    to St. Joseph Hospital with pelvic pain, uterine fibroids, and a right ovarian cyst.
    She   underwent     an   exploratory    laparotomy,    lysis   of   adhesions,    right
    salpingo-oophorectomy, and supracervical hysterectomy. The friable adhesions
    found during surgery required “sharp and cautery dissection to free the uterus and
    right [fallopian] tube and ovary [for] removal.” Sam experienced excessive blood
    loss due to the adhesions which required an “inter-operative blood transfusion”; thus,
    “a decision to stop with a supra[cervical] hysterectomy was made.” Extensive
    cautery and suturing were required “to obtain hemostasis.” “The frozen section on
    7
    the ovarian cyst was benign and cystoscopy was normal prior to [the] closing [of
    her] abdomen.” (Internal quotations omitted.)
    Soon after surgery, Sam developed pain, fever, nausea, and vomiting. A CT
    scan of Sam’s abdomen was done on her third day after her surgery. The CT scan
    showed “a collection of fluid and [a] probable blood clot in [Sam’s] pelvis.” A drain
    was placed by the interventional radiology department, which “noted that 50 cc of
    brown and bloody fluid was obtained from [Sam’s] pelvis at th[e] time.” Sam
    continued to experience pain and fever and leukocytosis. On the sixth day after her
    surgery, another CT scan was taken, and it showed “air, fluid, and contrast leakage
    within the peritoneal cavity.” After Sam was diagnosed with a bowel perforation,
    “with evidence of wide spread [sic] peritoneal cavity involvement,” a decision was
    made to treat Sam’s condition conservatively by draining the area even though there
    was “fluid and bowel gas . . . throughout the peritoneal cavity.” This course of
    treatment continued for the next four days, and Sam’s condition continued to
    deteriorate.
    On the tenth day after her initial surgery, Sam was taken back to the operating
    room for an exploratory laparotomy, a repair of her bowel perforation, and a
    diverting ileostomy.     The ileostomy was required because of a “marked
    inflammatory reaction to bowel leakage” that had occurred for an extended length
    of time. Had an exploratory laparotomy and repair of the bowel perforation been
    8
    performed at the time Sam was diagnosed with the bowel perforation, “with
    evidence of wide spread [sic] peritoneal cavity involvement,” a colostomy13 would
    have been possible. After Sam’s second surgery, Sam suffered peritonitis and sepsis.
    Sam slowly improved and was discharged seventeen days after she was first
    admitted to the hospital.
    As to the standard of care and breach of the standard of care for Dr. Kuhn, Dr.
    Paine states that bowel injuries, like a bowel perforation, are a well-known
    complication of a hysterectomy. On average they occur in one out of every 700
    cases. But if a hysterectomy is performed when adhesions are present and when an
    extensive bowel dissection is also required, the rate of bowel injuries increases. A
    bowel perforation should be diagnosed three days after a hysterectomy. Given the
    difficulties with Sam’s hysterectomy and the extensive bowel dissection that was
    required during her surgery, Dr. Kuhn, Sam’s gynecologist, should have considered
    and suspected a bowel perforation by the third day after Sam’s surgery, when Sam
    was experiencing pain, fever, nausea, and vomiting and a CT scan showed “a
    collection of fluid and [a] probable blood clot in [her] pelvis.” The standard of care
    required Dr. Kuhn to suspect, recognize, and diagnose a bowel perforation by the
    13
    A “colostomy” is “where the bowel is diverted to exit the abdomen. A colostomy
    bag is then attached that permits the [person] to pass stool into the bag, which must
    be drained by the [person], instead of the normal waste elimination process.”
    Centocor, Inc. v. Hamilton, 
    310 S.W.3d 476
    , 481–82 (Tex. App.—Corpus Christi–
    Edinburg 2010), rev’d on other grounds, 
    372 S.W.3d 140
     (Tex. 2012).
    9
    third day after Sam’s initial surgery and it required Dr. Kuhn to take Sam to surgery
    “to look for and treat the injury.” Dr. Kuhn did not do such things, and thus,
    breached the standard of care.
    Additionally, on the sixth day after Sam’s surgery, when Sam’s bowel
    perforation was actually diagnosed, the standard of care required Dr. Kuhn to
    recommend surgery to Sam and to immediately perform surgery to repair the bowel
    perforation. But Dr. Kuhn did not do either of those things. Instead, he decided to
    “treat [Sam’s] condition conservatively,” by draining the fluid that was present.
    (Internal quotations omitted.) There is no precedent for “conservative management”
    of a bowel perforation when there is evidence of bowel contents and gas free in the
    patient’s peritoneal cavity. (Internal quotations omitted.) Dr. Kuhn’s failure to take
    any action to repair Sam’s bowel perforation, including a failure to consult with
    someone from general surgery to explore Sam’s abdomen and repair the bowel
    perforation, after the bowel perforation diagnosis on the sixth day following Sam’s
    initial surgery was a breach of the standard of care. Further, Dr. Kuhn breached the
    standard of care by waiting until the tenth day after Sam’s initial surgery to return
    Sam to surgery to repair the bowel perforation because it should have been repaired
    immediately upon its diagnosis.
    As to the standard of care and breach of the standard of care for Dr. James,
    Dr. Paine states that bowel injuries, like a bowel perforation, are a well-known
    10
    complication of a hysterectomy. On average they occur in one out of every 700
    cases. But if a hysterectomy is performed when adhesions are present and when an
    extensive bowel dissection is also required, the rate of bowel injuries increases. A
    bowel perforation should be diagnosed three days after a hysterectomy.
    According    to   Dr.   Paine,   Dr.    James   was   the   general    surgeon
    “following . . . Sam[] post-hysterectomy.” Because Dr. James was the general
    surgeon “following” Sam after her surgery, once Sam’s bowel perforation was
    diagnosed on the sixth day after her surgery, the standard of care required Dr. James
    to immediately act upon the diagnosis by surgically repairing the bowel perforation
    or at least recommending a surgical repair of the bowel perforation. But Dr. James
    did not do so and instead joined in the “conservative” treatment plan with Dr. Kuhn.
    (Internal quotations omitted.) There is no precedent for “conservative management”
    of a bowel perforation when there is evidence of bowel contents and gas free in the
    peritoneal cavity. (Internal quotations omitted.) By failing to recommend surgical
    repair of Sam’s bowel perforation and by failing to surgically repair the bowel
    perforation immediately, Dr. James breached the standard of care. Dr. James also
    breached of the standard of care by waiting until the tenth day after Sam’s initial
    surgery to return Sam to surgery to repair the bowel perforation because it should
    have been repaired immediately upon its diagnosis.
    11
    As to the standard of care and breach of the standard of care for Dr. Morales,
    Dr. Paine states that bowel injuries, like a bowel perforation, are a well-known
    complication of a hysterectomy. On average they occur in one out of every 700
    cases. But if a hysterectomy is performed when adhesions are present and when an
    extensive bowel dissection is also required, the rate of bowel injuries increases. A
    bowel perforation should be diagnosed three days after a hysterectomy.
    According to Dr. Paine, Dr. Morales, an interventional radiologist, “drain[ed]
    the peritoneal cavity” after Sam was diagnosed with a bowel perforation on the sixth
    day after her surgery. But there is no precedent for “conservative management” of
    a bowel perforation when there is evidence of bowel contents and gas free in the
    peritoneal cavity. (Internal quotations omitted.) Based on Sam’s diagnosis of a
    bowel perforation on the sixth day after her surgery, Dr. Morales should have
    recommended immediate surgical exploration and repair of the bowel perforation.
    Dr. Morales did not do this, and thus, breached the standard of care.
    As to causation, Dr. Paine states that because of the aforementioned breaches
    by Drs. Kuhn, James, and Morales, Sam’s condition worsened and endangered her
    life.   A bowel perforation is a surgical emergency that requires immediate
    intervention. Immediate exploration, wash out of the peritoneal cavity, and repair
    of the bowel perforation is required. Any course of action other than immediate
    exploration, wash out, and repair, causes worsening peritonitis, sepsis, and possible
    12
    death. According to Dr. Paine, the physicians’ failure to timely diagnose the bowel
    perforation, decision to pursue “conservative management” of Sam’s bowel
    perforation after it was diagnosed on the sixth day after her initial surgery, failure to
    recommend surgical exploration and repair of the bowel perforation upon its
    diagnosis, failure to immediately repair the bowel perforation upon its diagnosis, and
    decision to delay the repair of Sam’s bowel perforation until the tenth day after her
    initial surgery, caused Sam’s condition to deteriorate and allowed for the continued
    leakage of bowel contents into the peritoneal cavity. (Internal quotations omitted.)
    Without a repair of the bowel perforation, bowel contents continued to flow into
    Sam’s peritoneal cavity “with all the bacteria, chemicals[,] and irritants [that] allow[]
    [an] infection to grow and worsen.” The bowel leakage caused severe damage to
    Sam’s physiology and permanent residual damage. And because the infection was
    allowed to grow, this led to a more complicated recovery process for Sam, a longer
    hospital stay, and long-term damage. Sam could not recover from the bowel
    perforation until it was actually repaired.
    Dr. Paine also explains that during the surgery to repair Sam’s bowel
    perforation, a diverting ileostomy had to be performed. According to Dr. Paine, the
    ileostomy was required because of a marked inflammatory reaction to bowel leakage
    for an extended length of time, i.e., four days after the bowel-perforation diagnosis
    13
    and ten days after Sam’s initial surgery. Had the bowel perforation been repaired at
    the time it was diagnosed, a colostomy would have been possible.
    Additionally, Dr. Paine states that peritonitis and sepsis, which are
    life-threatening conditions, can arise from a bowel perforation, and in such cases,
    they will not be resolved until the bowel perforation is repaired. Here, because of
    appellants’ aforementioned breaches, Sam’s peritonitis and sepsis grew worse—
    which is what happens when an infection is not properly treated and the source of
    the infection is not appropriately and timely addressed.
    Dr. Kuhn objected to Dr. Paine’s expert reports and requested that Sam’s
    health care liability claim against him be dismissed.14 Dr. Kuhn asserted that Dr.
    Paine’s expert reports do not provide a fair summary of the applicable standard of
    care and do not explain how Dr. Kuhn breached the standard of care. The reports
    also do not explain how any alleged breach by Dr. Kuhn caused or contributed to
    cause Sam’s injury.
    Dr. James objected to Dr. Paine’s expert reports and requested that Sam’s
    health care liability claim against him be dismissed.15 Dr. James asserted that Dr.
    Paine’s expert reports do not provide a fair summary of the applicable standard of
    14
    Women’s Healthcare joined Dr. Kuhn’s objection and requested that the trial court
    dismiss Sam’s vicarious liability health care liability claim against it.
    15
    Metropolitan Houston joined Dr. James’s objection and requested that the trial court
    dismiss Sam’s vicarious liability health care liability claim against it.
    14
    care and do not inform Dr. James of what he did to breach the standard of care. Dr.
    Paine’s opinion on causation is speculative and conclusory, and the reports do not
    state how Dr. James’s breach of the standard of care caused Sam harm. Dr. James
    also asserts that Dr. Paine is not qualified to offer an opinion on the standard of care
    and causation related to Dr. James.
    Dr. Morales objected to Dr. Paine’s expert reports and requested that Sam’s
    health care liability claim against him be dismissed.16 Dr. Morales asserted that Dr.
    Paine is not qualified to offer an opinion on causation related to Dr. Morales.
    After Sam responded to appellants’ objections and motions to dismiss, the
    trial court overruled appellants’ objections to Dr. Paine’s expert reports and denied
    appellants’ motions to dismiss the health care liability claims against them.
    Standard of Review
    We review a trial court’s decision on a motion to dismiss a health care liability
    claim for an abuse of discretion. See Am. Transitional Care Ctrs. of Tex., Inc. v.
    Palacios, 
    46 S.W.3d 873
    , 875 (Tex. 2001); Gray v. CHCA Bayshore L.P., 
    189 S.W.3d 855
    , 858 (Tex. App.—Houston [1st Dist.] 2006, no pet.). We apply the same
    standard to a trial court’s determination that an expert is qualified. See Broders v.
    Heise, 
    924 S.W.2d 148
    , 151–52 (Tex. 1996); San Jacinto Methodist Hosp. v.
    16
    West Houston Radiology and Radiology Partners joined Dr. Morales’s objection
    and requested that the trial court dismiss Sam’s vicarious liability health care
    liability claims against them.
    15
    Bennett, 
    256 S.W.3d 806
    , 811 (Tex. App.—Houston [14th Dist.] 2008, no pet.). A
    trial court abuses its discretion if it acts in an arbitrary or unreasonable manner
    without reference to guiding rules or principles. Jelinek v. Casas, 
    328 S.W.3d 526
    ,
    539 (Tex. 2010). When reviewing matters committed to a trial court’s discretion,
    we may not substitute our own judgment for that of the trial court. Bowie Mem’l
    Hosp. v. Wright, 
    79 S.W.3d 48
    , 52 (Tex. 2002). A trial court does not abuse its
    discretion merely because it decides a discretionary matter differently than an
    appellate court would in a similar circumstance. Harris Cty. Hosp. Dist. v. Garrett,
    
    232 S.W.3d 170
    , 176 (Tex. App.—Houston [1st Dist.] 2007, no pet.). But a trial
    court has no discretion in determining what the law is or in applying the law to the
    facts. See Walker v. Packer, 
    827 S.W.2d 833
    , 840 (Tex. 1992). In conducting our
    review, we always consider that the Legislature’s goal in requiring expert reports is
    to deter baseless claims, not block earnest ones. Jackson v. Kindred Hosps. Ltd.
    P’ship, 
    565 S.W.3d 75
    , 81 (Tex. App.—Fort Worth 2018, pet. denied); Gonzalez v.
    Padilla, 
    485 S.W.3d 236
    , 242 (Tex. App.—El Paso 2016, no pet.); see also Scoresby
    v. Santillan, 
    346 S.W.3d 546
    , 554 (Tex. 2011).
    Under the Texas Medical Liability Act (“TMLA”), a plaintiff asserting a
    health care liability claim must timely serve each defendant physician and health
    16
    care provider17 with at least one expert report, with a CV for the expert whose
    opinion is offered, to substantiate the merits of the plaintiff’s claim. TEX. CIV. PRAC.
    & REM. CODE ANN. § 74.351(a), (i); see also Mangin v. Wendt, 
    480 S.W.3d 701
    , 705
    (Tex. App.—Houston [1st Dist.] 2015, no pet.). The expert report must provide a
    “fair summary” of the expert’s opinions on (1) the applicable standard of care,
    (2) the manner in which the care rendered by the defendant physician or health care
    provider failed to meet the standard of care, and (3) the causal relationship between
    that failure and the injury, harm, or damages claimed. TEX. CIV. PRAC. & REM. CODE
    ANN. § 74.351(r)(6); see also Certified EMS, Inc. v. Potts, 
    392 S.W.3d 625
    , 630
    (Tex. 2013). A “fair summary” of the expert’s opinions means that, at the least, the
    report must state more than the expert’s mere conclusions as to the standard of care,
    breach, and causation; it must instead explain the basis of the expert’s opinion so as
    to link the conclusions to the facts of the case. See Jelinek, 328 S.W.3d at 539;
    Wright, 79 S.W.3d at 52.
    If a plaintiff fails to timely serve an expert report, then, on the motion of a
    defendant physician or health care provider, the trial court must dismiss the pertinent
    health care liability claim with prejudice and award attorney’s fees. TEX. CIV. PRAC.
    & REM. CODE ANN. § 74.351(b); Baty v. Futrell, 
    543 S.W.3d 689
    , 692 (Tex. 2018).
    17
    See TEX. CIV. PRAC. & REM. CODE ANN. § 74.001(a)(12)(A) (defining “[h]ealth
    care provider” (internal quotations omitted)).
    17
    But if a plaintiff timely serves an expert report and a defendant physician or health
    care provider files a motion challenging the adequacy of that report, then the trial
    court may only grant the motion “if it appears to the court, after [a] hearing, that the
    report does not represent an objective good faith effort to comply with the [TMLA’s]
    definition of an expert report.” TEX. CIV. PRAC. & REM. CODE ANN. § 74.351(l);
    Baty, 543 S.W.3d at 692–93; see also TEX. CIV. PRAC. & REM. CODE ANN.
    § 74.351(r)(6) (“[e]xpert report” means “a written report by an expert that provides
    a fair summary of the expert’s opinions as of the date of the report regarding
    applicable standards of care, the manner in which the care rendered by the physician
    or health care provider failed to meet the standards, and the causal relationship
    between that failure and the injury, harm, or damages claimed” (internal quotations
    omitted)).
    An expert report qualifies as an “objective good faith effort” to avoid
    dismissal if it discusses each element with sufficient specificity so that it (1) informs
    the defendant physician or health care provider of the specific conduct that the
    plaintiff questions or about which the plaintiff complains and (2) provides a basis
    for the trial court to conclude that the plaintiff’s health care liability claim has merit.
    Miller v. JSC Lake Highlands Operations, LP, 
    536 S.W.3d 510
    , 513 (Tex. 2017);
    see also Baty, 543 S.W.3d at 693–94. The expert report need not use any particular
    18
    words, and it may be informal, “but bare conclusions will not suffice.” Scoresby,
    346 S.W.3d at 555–56.
    In determining whether an expert report constitutes an “objective good faith
    effort” to address each element, “a trial court may not draw inferences; instead, it
    must exclusively rely upon the information contained within the four corners of the
    report.” Puppala v. Perry, 
    564 S.W.3d 190
    , 197 (Tex. App.—Houston [1st Dist.]
    2018, no pet.) (internal quotations omitted). And when the issue of adequacy hinges
    on an expert’s qualifications, the trial court may also consider the “four corners” of
    the expert’s CV. Id.; Mangin, 480 S.W.3d at 706. Courts must view the report in
    its entirety, rather than isolating specific portions or sections, to determine whether
    it is sufficient. See Baty, 543 S.W.3d at 694; see, e.g., Van Ness v. ETMC First
    Physicians, 
    461 S.W.3d 140
    , 144 (Tex. 2015); see also Austin Heart, P.A. v. Webb,
    
    228 S.W.3d 276
    , 282 (Tex. App.—Austin 2007, no pet.) (“The form of the report
    and the location of the information in the report are not dispositive.”). In reviewing
    the adequacy of an expert report, a trial court may not consider an expert’s
    credibility, the data relied on by the expert, or the documents that the expert failed
    to consider at this pre-discovery stage of the litigation. See Mettauer v. Noble, 
    326 S.W.3d 685
    , 691–92 (Tex. App.—Houston [1st Dist.] 2010, no pet.); Gonzalez, 485
    S.W.3d at 245.
    19
    Multiple expert reports may be considered together in determining whether a
    plaintiff has provided a report meeting the statutory requirements. See TEX. CIV.
    PRAC. & REM. CODE ANN. § 74.351(i); Salias v. Tex. Dep’t of Aging & Disability
    Servs., 
    323 S.W.3d 527
    , 534 (Tex. App.—Waco 2010, pet. denied); Walgreen Co.
    v. Hieger, 
    243 S.W.3d 183
    , 186 n.2 (Tex. App.—Houston [14th Dist.] 2007, pet.
    denied). A single report addressing both liability and causation issues related to a
    defendant physician or health care provider is not required. See TEX. CIV. PRAC. &
    REM. CODE ANN. § 74.351(i); Gannon v. Wyche, 
    321 S.W.3d 881
    , 896 (Tex. App.—
    Houston [14th Dist.] 2010, pet. denied).       When an expert report has been
    supplemented, a court considers both the original expert report and the supplemental
    expert report when reviewing their adequacy.         See Scherer v. Gandy, No.
    07-18-00341-CV, 
    2019 WL 988174
    , at *2 n.4 (Tex. App.—Amarillo Feb. 28, 2019,
    no pet.) (mem. op.); see also Packard v. Guerra, 
    252 S.W.3d 511
    , 527 (Tex. App.—
    Houston [14th Dist.] 2008, pet. denied). The multiple expert reports, when read
    together, must provide a “fair summary” of the expert’s opinions on (1) the
    applicable standard of care, (2) the manner in which the care rendered by the
    defendant physician or health care provider failed to meet the standard of care, and
    (3) the causal relationship between that failure and the injury, harm, or damages
    claimed. See TEX. CIV. PRAC. & REM. CODE ANN. § 74.351(i), (r)(6); see also
    Gannon, 
    321 S.W.3d at 896
    .
    20
    Dr. Kuhn and Women’s Healthcare
    In his sole issue, Dr. Kuhn argues that the trial court erred in overruling his
    objections to Dr. Paine’s expert reports and denying his motion to dismiss Sam’s
    health care liability claim against him because Dr. Paine’s expert reports do not
    adequately address the standard of care and causation as it relates to Dr. Kuhn. In
    its sole issue, Women’s Healthcare argues that the trial court erred in overruling its
    objections to Dr. Paine’s expert reports and denying its motion to dismiss Sam’s
    vicarious liability health care liability claim against it because Dr. Paine’s expert
    reports do not adequately address the standard of care and causation as it relates to
    Dr. Kuhn.
    A.    Standard of Care Related to Dr. Kuhn
    In a portion of his sole issue, Dr. Kuhn argues that Dr. Paine’s expert reports
    do not adequately address the standard of care as it relates to him because the expert
    reports do not “provide Dr. Kuhn with specific information about what he should
    have done differently.”
    Identifying the standard of care in a health care liability claim is critical.
    Palacios, 46 S.W.3d at 880. To adequately identify the standard of care, an expert
    report must set forth “specific information about what the defendant [physician]
    should have done differently.” Abshire v. Christus Health Se. Tex., 
    563 S.W.3d 219
    ,
    226 (Tex. 2018) (internal quotations omitted). Thus, related to standard of care and
    21
    breach, the expert report must explain what the defendant physician should have
    done under the circumstances and what the physician did instead. Palacios, 46
    S.W.3d at 880; see also Kline v. Leonard, No. 01-19-00323-CV, 
    2019 WL 6904720
    ,
    at *7 (Tex. App.—Houston [1st Dist.] Dec. 19, 2019, pet. denied) (mem. op.) (“[A]n
    expert report must provide a fair summary of the expert’s opinion regarding the
    applicable standard of care and the manner in which the care rendered by the health
    care provider failed to meet the standard.” (internal quotations omitted)). It is not
    sufficient for the expert to simply state that he knows the standard of care and
    concludes that it was or was not met. Palacios, 46 S.W.3d at 880.
    As to the applicable standard of care related to Dr. Kuhn, Dr. Paine, in his
    expert reports, states that bowel injuries, like a bowel perforation, are a well-known
    complication of a hysterectomy. On average they occur in one out of every 700
    cases. But if a hysterectomy is performed when adhesions are present and when an
    extensive bowel dissection is also required, the rate of bowel injuries increases. A
    bowel perforation should be diagnosed three days after a hysterectomy. Given the
    difficulties with Sam’s hysterectomy and the extensive dissection that was required
    during her initial surgery, Dr. Kuhn, Sam’s gynecologist, should have considered
    and suspected a bowel perforation by the third day after Sam’s surgery, when Sam
    was experiencing pain, fever, nausea, and vomiting and a CT scan showed “a
    collection of fluid and [a] probable blood clot in [her] pelvis.” The standard of care
    22
    required Dr. Kuhn to suspect, recognize, and diagnose a bowel perforation by the
    third day after Sam’s surgery and also required him to take Sam to surgery “to look
    for and treat the injury.” Additionally, on the sixth day after surgery, when Sam’s
    bowel perforation was actually diagnosed, the standard of care required Dr. Kuhn to
    recommend surgery to Sam and to immediately perform surgery to repair her bowel
    perforation. See Baty, 543 S.W.3d at 694 (courts must view report in its entirety,
    rather than isolating specific portions or sections, to determine whether it is
    sufficient); Webb, 
    228 S.W.3d at 282
     (“The form of the report and the location of
    the information in the report are not dispositive.”).
    Dr. Paine’s statements about the applicable standard of care for Dr. Kuhn are
    not vague or conclusory. Rather, the expert reports identify the specific actions that
    should have been taken by Dr. Kuhn but were not. See Abshire, 563 S.W.3d at 226–
    27; see also Baty, 543 S.W.3d at 695 (report not conclusory where it did not require
    one to infer what defendant physician should have done differently); Keepers v.
    Blessett, No. 01-18-01020-CV, 
    2019 WL 1523368
    , at *5 (Tex. App.—Houston [1st
    Dist.] Apr. 9, 2019, no pet.) (mem. op.) (expert report is adequate where it informs
    defendant physician of expert’s opinion on what defendant should have done and
    what the defendant did instead). The stated standard of care need not be complicated
    for it to be sufficient. See, e.g., Baty, 543 S.W.3d at 697; see also Keepers, 
    2019 WL 1523368
    , at *5–6 (“At times, the standard of care can be fairly basic.” (internal
    23
    quotations omitted)). Dr. Paine clearly identifies the applicable standard of care
    related to Dr. Kuhn. The expert reports provide “enough information” for the trial
    court to have concluded that they constitute a good-faith effort to set forth the
    applicable standard of care related to Dr. Kuhn.18 See Miller, 536 S.W.3d at 515–
    17; see also New Med. Horizons, II, Ltd. v. Milner, 
    575 S.W.3d 53
    , 60, 64 (Tex.
    App.—Houston [1st Dist.] 2019, no pet.); Mettauer, 
    326 S.W.3d at 691
     (not court’s
    role to determine truth or falsity of expert’s opinion, or truth or falsity of facts upon
    which expert bases such opinions, but only to act as gatekeeper in evaluating
    sufficiency of report itself).
    We conclude that the trial court could have reasonably determined that Dr.
    Paine’s expert reports represent an “objective good faith effort” to inform Dr. Kuhn
    of the specific conduct called into question, the standard of care that should have
    been followed, and what Dr. Kuhn should have done differently. Thus, we hold that
    the trial court did not err in overruling Dr. Kuhn’s objections and denying Dr. Kuhn’s
    18
    To the extent Dr. Kuhn asserts that Dr. Paine has not accurately stated the standard
    of care, that complaint does not support a dismissal at this stage of the litigation.
    See Aggarwal v. Trotta, No. 01-19-00012-CV, 
    2019 WL 2426172
    , at *4 n.5 (Tex.
    App.—Houston [1st Dist.] June 11, 2019, no pet.) (mem. op.) (“To the extent [that
    the defendant physician] disputes that [the expert] has accurately stated the standard
    of care, his complaint does not support a Chapter 74 dismissal.”); Engh v. Reardon,
    No. 01-09-00017-CV, 
    2010 WL 4484022
    , at *8 (Tex. App.—Houston [1st Dist.]
    Nov. 10, 2010, no pet.) (mem. op.) (“The [physicians] also challenge the accuracy
    of [the expert’s] opinions with respect to [the] standard of care. Whether [the
    expert’s] opinions regarding the applicable standard[] of care are correct, however,
    is an issue for summary judgment, not a motion to dismiss under Chapter 74.”).
    24
    motion to dismiss Sam’s health care liability claim against him on the ground that
    Dr. Paine’s expert reports do not adequately address the standard of care as to Dr.
    Kuhn.
    We overrule this portion of Dr. Kuhn’s sole issue.
    B.      Causation Related to Dr. Kuhn
    In the remaining portion of his sole issue, Dr. Kuhn argues that Dr. Paine’s
    expert reports do not adequately address causation as it relates to him because the
    expert reports do not establish a causal link between Dr. Kuhn’s conduct and Sam’s
    injuries, the reports contain analytical gaps between Dr. Kuhn’s alleged breach of
    the standard of care and Sam’s alleged injury, and Dr. Paine’s causation opinion is
    conclusory.
    An expert report must provide a “fair summary” of the expert’s opinion on the
    causal relationship between the failure of a defendant physician to provide care in
    accord with the applicable standard of care and the plaintiff’s claimed injury, harm,
    or damages. TEX. CIV. PRAC. & REM. CODE ANN. § 74.351(r)(6); see also Potts, 392
    S.W.3d at 630.      The expert report must explain how and why the defendant
    physician’s breach of the standard of care proximately caused the plaintiff’s injury.
    Columbia Valley Healthcare Sys., L.P. v. Zamarripa, 
    526 S.W.3d 453
    , 459–60 (Tex.
    2017). An expert report need not marshal all the plaintiff’s proof necessary to
    establish causation at trial, and it need not anticipate or rebut all possible defensive
    25
    theories that may ultimately be presented to the trial court. Wright, 79 S.W.3d at 52;
    Cornejo v. Hilgers, 
    446 S.W.3d 113
    , 123 (Tex. App.—Houston [1st Dist.] 2014, pet.
    denied). But an expert cannot simply opine that the breach caused the injury.
    Jelinek, 328 S.W.3d at 539.
    Causation     consists    of   two        components:   (1) cause-in-fact   and
    (2) foreseeability. Gunn v. McCoy, 
    554 S.W.3d 645
    , 658 (Tex. 2018). A defendant
    physician’s breach was a cause-in-fact of the plaintiff’s injury if the breach was a
    substantial factor in bringing about the harm, and absent the breach the harm would
    not have occurred. 
    Id.
     Even if the harm would not have occurred absent the
    defendant physician’s breach, “the connection between the defendant and the
    plaintiff’s injuries simply may be too attenuated” for the breach to qualify as a
    substantial factor. Allways Auto Grp., Ltd. v. Walters, 
    530 S.W.3d 147
    , 149 (Tex.
    2017) (internal quotations omitted). A breach is not a substantial factor if it “does
    no more than furnish the condition that makes the plaintiff’s injury possible.” 
    Id.
     A
    defendant physician’s breach is a foreseeable cause of the plaintiff’s injury if
    physician of ordinary intelligence would have anticipated the danger caused by the
    negligent act or omission. Puppala, 564 S.W.3d at 197.
    As to standard of care and breach of the standard of care, Dr. Paine, in his
    expert reports, states that bowel injuries, like a bowel perforation, are a well-known
    complication of a hysterectomy. On average they occur in one out of every 700
    26
    cases. But if a hysterectomy is performed when adhesions are present and when an
    extensive bowel dissection is also required, the rate of bowel injuries increases. A
    bowel perforation should be diagnosed three days after a hysterectomy. Given the
    difficulties with Sam’s hysterectomy and the extensive dissection that was required
    during her initial surgery, Dr. Kuhn, Sam’s gynecologist, should have considered
    and suspected a bowel perforation by the third day after Sam’s surgery, when Sam
    was experiencing pain, fever, nausea, and vomiting and a CT scan showed “a
    collection of fluid and [a] probable blood clot in [her] pelvis.” The standard of care
    required Dr. Kuhn to suspect, recognize, and diagnose a bowel perforation by the
    third day after Sam’s surgery and take Sam to surgery “to look for and treat the
    injury.” Dr. Kuhn, by not doing either of those things, breached the standard of care.
    Additionally, on the sixth day after her initial surgery, when Sam’s bowel
    perforation was actually diagnosed, the standard of care required Dr. Kuhn to
    recommend surgery to Sam and to immediately perform surgery to repair the bowel
    perforation. But Dr. Kuhn did not do either of those things. Instead, he decided to
    “treat [Sam’s] condition conservatively,” by draining the fluid that was present.
    There is no precedent for “conservative management” of a bowel perforation when
    there is evidence of bowel contents and gas free in the peritoneal cavity. (Internal
    quotations omitted.) Dr. Kuhn’s failure to take any action to repair Sam’s bowel
    perforation, including his failure to consult with someone from general surgery to
    27
    explore Sam’s abdomen and repair the bowel perforation, after the bowel perforation
    diagnosis on the sixth day following Sam’s initial surgery was a breach of the
    standard of care. Further, Dr. Kuhn breached the standard of care by waiting until
    the tenth day after Sam’s initial surgery to return Sam to surgery to repair the bowel
    perforation because it should have been repaired immediately upon its diagnosis.
    As to causation, Dr. Paine, in his expert reports, states that because of the
    aforementioned breaches by Dr. Kuhn, Sam’s condition worsened and endangered
    her life. Dr. Paine explained that a bowel perforation is a surgical emergency that
    requires immediate intervention. Immediate exploration, wash out of the peritoneal
    cavity, and repair of the bowel perforation is required. Any course of action other
    than immediate exploration, wash out, and repair, causes worsening peritonitis,
    sepsis, and possible death. According to Dr. Paine, Dr. Kuhn’s failure to timely
    diagnose the bowel perforation, decision to pursue “conservative management” of
    Sam’s bowel perforation after it was diagnosed on the sixth day after her initial
    surgery, failure to recommend surgical exploration and repair of the bowel
    perforation upon diagnosis, failure to not immediately repair the bowel perforation
    upon diagnosis, and decision to delay the repair of Sam’s bowel perforation until the
    tenth day after her initial surgery, caused Sam’s condition to deteriorate and allowed
    for the continued leakage of bowel contents into the peritoneal cavity. (Internal
    quotations omitted.) Without a repair of Sam’s bowel perforation, bowel contents
    28
    continued to flow into Sam’s peritoneal cavity “with all the bacteria, chemicals[,]
    and irritants [that] allow[] [an] infection to grow and worsen.” The bowel leakage
    caused severe damage to Sam’s physiology and permanent residual damage. And
    because the infection was allowed to grow, this led to a more complicated recovery
    process for Sam, a longer hospital stay, and long-term damage. Sam could not
    recover from the bowel perforation until it was actually repaired.
    Further, during the surgery to repair Sam’s bowel perforation, a diverting
    ileostomy had to be performed. According to Dr. Paine, the ileostomy was required
    because of a marked inflammatory reaction to bowel leakage for an extended length
    of time, i.e., four days after the bowel-perforation diagnosis and ten days after Sam’s
    initial surgery. Had the bowel perforation been repaired at the time it was diagnosed,
    a colostomy would have been possible.
    Dr. Paine also explains that peritonitis and sepsis, which are life-threatening
    conditions, can arise from a bowel perforation, and in such cases, they will not be
    resolved until the bowel perforation is repaired. Here, because of Dr. Kuhn’s
    aforementioned breaches, Sam’s peritonitis and sepsis grew worse—which is what
    happens when an infection is not properly treated and the source of the infection is
    not appropriately and timely addressed. Sam’s condition worsened and endangered
    her life.
    29
    In determining whether an expert’s causation opinion is conclusory, we must
    remain mindful that expert-report challenges are made at an early, pre-discovery
    stage in the litigation, not when the merits of the health care liability claim are being
    presented to the fact finder to determine liability. Puppala, 564 S.W.3d at 198. To
    provide more than a conclusory statement on causation, an expert report must
    include an “explanation tying the conclusion to the facts” and showing “how and
    why the breach caused the injury based on the facts presented.” Jelinek, 328 S.W.3d
    at 539–40; see also Puppala, 564 S.W.3d at 197. The expert report need only
    provide some basis that the defendant physician’s act or omission proximately
    caused injury. Owens v. Handyside, 
    478 S.W.3d 172
    , 187–88 (Tex. App.—Houston
    [1st Dist.] 2015, pet. denied); see also Palacios, 46 S.W.3d at 879 (explaining “a
    plaintiff need not present evidence in the report as if it were actually litigating the
    merits. . . . [T]he information in the report does not have to meet the same
    requirements as the evidence offered in a summary-judgment proceeding or at
    trial”).
    Here, Dr. Paine’s causation opinion is in line with those found sufficient in
    other health-care-liability cases at this stage of the litigation where experts have
    opined that had the defendant physician not breached the standard of care, a proper
    diagnosis and medical intervention would have been achieved and the plaintiff’s
    injury, harm, or damages would have been avoided. See, e.g., Whitmire v. Feathers,
    30
    No. 01-19-00094-CV, 
    2020 WL 4983321
    , at *15–16 (Tex. App.—Houston [1st
    Dist.] Aug. 25, 2020, no pet.) (mem. op.); Puppala, 564 S.W.3d at 198–202; Owens,
    478 S.W.3d at 187–91. An expert may show causation by explaining a chain of
    events that begins with the defendant physician’s negligence and ends in injury to
    the plaintiff. See Whitmire, 
    2020 WL 4983321
    , at *16; Owens, 478 S.W.3d at 189;
    McKellar v. Cervantes, 
    367 S.W.3d 478
    , 485–86 (Tex. App.—Texarkana 2012, no
    pet.); see also Christus Spohn Health Sys. Corp. v. Hinojosa, No. 04-16-00288-CV,
    
    2016 WL 7383819
    , at *6 (Tex. App.—San Antonio Dec. 21, 2016, no pet.) (mem.
    op.) (expert report specified signs and symptoms that should have prompted
    defendant physician to admit patient to hospital for treatment; expert then opined
    that if patient had been admitted at least two things would have occurred). Here, Dr.
    Paine’s expert reports explain the connection between Dr. Kuhn’s alleged negligent
    conduct and the claimed injury, harm, or damages. See THN Physicians Ass’n v.
    Tiscareno, 
    495 S.W.3d 599
    , 614 (Tex. App.—El Paso 2016, no pet.) (“[T]he expert
    must at a minimum explain the connection between [the physician’s] conduct and
    the injury to the patient.”); see also Whitmire, 
    2020 WL 4983321
    , at *16; Owens,
    478 S.W.3d at 189 (expert may show causation by explaining chain of events that
    begins with defendant physician’s negligence and ends in injury to plaintiff);
    McKellar, 367 S.W.3d at 485–86.
    31
    Finally, we note that Dr. Kuhn asserts that Dr. Paine’s expert reports “do not
    address whether treating conservatively, by treating the symptoms of [the] infection
    without treating the source, might have reasonably ke[pt] . . . Sam’s condition from
    worsening.” But an expert report need not address all hypothetical scenarios. See
    Whitmire, 
    2020 WL 4983321
    , at *16; VHS San Antonio Partners LLC v. Garcia,
    No. 04-09-00297-CV, 
    2009 WL 3223178
    , at *6 (Tex. App.—San Antonio Oct. 7.
    2009, pet. denied) (mem. op.). And although the law requires an expert report to
    link the expert’s conclusion on causation with the alleged breach of the standard of
    care, nothing requires the expert report to address or rule out all other possible
    scenarios. See Whitmire, 
    2020 WL 4983321
    , at *16; Garcia, 
    2009 WL 3223178
    , at
    *6; see also Owens, 478 S.W.3d at 187 (report “need not anticipate or rebut all
    possible defensive theories that may ultimately be presented” in case).           The
    correctness of Dr. Paine’s opinion is not at issue in this stage of the litigation. See
    Potts, 392 S.W.3d at 632; Whitmire, 
    2020 WL 4983321
    , at *16.
    We conclude that the trial court could have reasonably determined that Dr.
    Paine’s expert reports represent an “objective good faith effort” to inform Dr. Kuhn
    of the causal relationship between Dr. Kuhn’s purported failure to provide care in
    accord with the appliable standard of care and the claimed injury, harm, or damages.
    See Zamarripa, 526 S.W.3d at 460 (as long as report makes “a good-faith effort to
    explain, factually, how proximate cause is going to be proven,” it satisfies TMLA’s
    32
    threshold requirement); Kelly v. Rendon, 
    255 S.W.3d 665
    , 679 (Tex. App.—Houston
    [14th Dist.] 2008, no pet.) (emphasizing expert reports “are simply a preliminary
    method to show a plaintiff has a viable cause of action that is not frivolous or without
    expert support”). Thus, we hold that the trial court did not err in overruling Dr.
    Kuhn’s objections and denying Dr. Kuhn’s motion to dismiss Sam’s health care
    liability claim against him on the ground that Dr. Paine’s expert reports do not
    adequately address causation as to Dr. Kuhn.
    We overrule the remaining portion of Dr. Kuhn’s sole issue.19
    C.    Vicarious Liability Related to Women’s Healthcare
    In its sole issue, Women’s Healthcare argues that the trial court erred in
    overruling its objections to Dr. Paine’s expert reports and denying its motion to
    dismiss Sam’s vicarious liability health care liability claim against it because Dr.
    Paine’s expert reports do not adequately address the standard of care and causation
    as it relates to Dr. Kuhn.
    In her petition, Sam alleges that Women’s Healthcare is vicariously liable for
    the conduct of Dr. Kuhn. Generally, when a plaintiff brings health care liability
    claims against more than one defendant physician or health care provider, the expert
    report must set forth the standard of care and breach of the standard of care as to
    19
    Due to our disposition, we need not address Dr. Kuhn’s request for attorney’s fees
    and costs. See TEX. R. APP. P. 47.1.
    33
    each defendant and explain the causal relationship between each defendant’s
    individual acts or omissions and the claimed injury. See TEX. CIV. PRAC. & REM.
    CODE ANN. § 74.351(a), (r)(6); Seton Family of Hosps. v. White, 
    593 S.W.3d 787
    ,
    792 (Tex. App.—Austin 2019, pet. denied); Pharmacy Healthcare Sols., Ltd. v.
    Pena, 
    530 S.W.3d 169
    , 175 (Tex. App.—Eastland 2015, pet. denied). Yet, when a
    plaintiff brings a health care liability claim based on a vicarious liability theory
    against a defendant health care provider, an expert report that adequately implicates
    the actions of that party’s agent or employee is sufficient as to the defendant health
    care provider. Gardner v. U.S. Imaging, Inc., 
    274 S.W.3d 669
    , 671–72 (Tex. 2008);
    Seton Family, 593 S.W.3d at 792; see also Owens, 478 S.W.3d at 191 (“[W]hen a
    health care liability claim involves a vicarious liability theory, either alone or in
    combination with other theories, an expert report that meets the statutory standards
    as to the employee is sufficient to implicate the employer’s conduct under the
    vicarious theory.” (alteration in original) (internal quotations omitted)). In other
    words, when a health care liability claim against a defendant health care provider is
    based on vicarious liability, an expert report that meets the statutory standards as to
    an agent or employee is sufficient to implicate the health care provider’s conduct.
    Potts, 392 S.W.3d at 632; Seton Family, 593 S.W.3d at 792; see also Owens, 478
    S.W.3d at 191–92 (expert report that is sufficient as to employee or agent, on whose
    34
    alleged negligent conduct vicarious liability claim was based, is also sufficient as to
    employer health care provider).
    Having held that the trial court did not err in overruling Dr. Kuhn’s objections
    to Dr. Paine’s expert reports and denying Dr. Kuhn’s motion to dismiss Sam’s direct
    liability health care liability claim against him because Dr. Paine’s expert reports
    meet the requirements of chapter 74 related to Dr. Kuhn, we hold that Sam may also
    proceed on the vicarious liability health care liability claim against Women’s
    Healthcare which is based on the conduct of Dr. Kuhn. See Potts, 392 S.W.3d at
    632; Gardner, 274 S.W.3d at 671–72; Owens, 478 S.W.3d at 191–92; see also Ctr.
    for Neurological Disorders, P.A. v. George, 
    261 S.W.3d 285
    , 295 (Tex. App.—Fort
    Worth 2008, pet. denied) (“[I]f the expert report is sufficient as to the claims against
    Dr. Ward, and we have held that it is[,] . . . then the report is sufficient as to [the]
    claims against CND that are based on Dr. Ward’s alleged negligence.”).
    We overrule Women’s Healthcare’s sole issue.
    Dr. James and Metropolitan Houston
    In his sole issue, Dr. James argues that the trial court erred in overruling his
    objections to Dr. Paine’s expert reports and denying his motion to dismiss Sam’s
    health care liability claim against him because Dr. Paine is not qualified to offer an
    opinion on the standard of care and causation related to Dr. James and Dr. Paine’s
    expert reports do not adequately address causation as it relates to Dr. James. In its
    35
    sole issue, Metropolitan Houston argues that the trial court erred in overruling its
    objections to Dr. Paine’s expert reports and denying its motion to dismiss Sam’s
    vicarious liability health care liability claim against it because Dr. Paine is not
    qualified to offer an opinion on the standard of care and causation related to Dr.
    James and Dr. Paine’s expert reports do not adequately address causation as it relates
    to Dr. James.
    A.    Dr. Paine’s Qualifications Related to Standard of Care
    In a portion of his sole issue, Dr. James argues that Dr. Paine is not qualified
    to offer an opinion on the standard of care related to Dr. James because Dr. Paine’s
    expert reports and CV do not “reflect that he is qualified . . . to opine on the standard
    of care for a consulting surgeon such as Dr. James with respect to surgical
    post-operative management of a patient who has undergone a hysterectomy with a
    bowel perforation.” Dr. James further asserts that his practice area is general
    surgery, while Dr. Paine’s practice area is obstetrics and gynecology, and “the fact
    that Dr. Paine is familiar with post-operative care for hysterectomy patients does not
    mean that he is knowledgeable about the standard of care applicable to a general
    surgeon . . . who is consulted in the circumstances presented in this case.”
    An expert report by a person not qualified to testify does not constitute a
    good-faith effort to comply with the TMLA’s definition of an expert report and
    warrants dismissal. See Mettauer, 
    326 S.W.3d at 693
    ; Hendrick Med. Ctr. v.
    36
    Conger, 
    298 S.W.3d 784
    , 789 (Tex. App.—Eastland 2009, no pet.) (where expert
    not qualified to offer opinion, expert report is rendered deficient); see also TEX. CIV.
    PRAC. & REM. CODE ANN. § 74.351(l), (r)(6). Whether an expert witness is qualified
    to offer an expert opinion lies within the sound discretion of the trial court. Cornejo,
    446 S.W.3d at 121. The expert’s qualifications must appear in the four corners of
    the expert report or in the expert’s accompanying CV. Puppala, 564 S.W.3d at 197,
    202; see also Cornejo, 446 S.W.3d at 121.
    In a suit involving a health care liability claim against a physician, a person is
    qualified as an expert on the issue of whether the physician departed from the
    accepted standard of care, if the expert is a physician who:
    1.     is practicing medicine[20] at the time such testimony is given or
    was practicing medicine at the time the claim arose;
    2.     has knowledge of accepted standards of medical care for the
    diagnosis, care, or treatment of the illness, injury, or condition
    involved in the claim; and
    3.     is qualified on the basis of training or experience to offer an
    expert opinion regarding those accepted standards of medical
    care.
    20
    “[P]racticing medicine . . . includes, but is not limited to, training residents or
    students at an accredited school of medicine or osteopathy or serving as a consulting
    physician to other physicians who provided direct patient care, upon the request of
    such other physicians.” TEX. CIV. PRAC. & REM. CODE ANN. § 74.401(b) (internal
    quotations omitted).
    37
    TEX. CIV. PRAC. & REM. CODE ANN. § 74.401(a); see also id. § 74.351(r)(5)(A)
    (“[e]xpert” means “with respect to a person giving opinion testimony regarding
    whether a physician departed from accepted standards of medical care, an expert
    qualified to testify under the requirements of [s]ection 74.401” (internal quotations
    omitted); Methodist Hosp. v. Addison, 
    574 S.W.3d 490
    , 503 (Tex. App.—Houston
    [14th Dist.] 2018, no pet.). In determining whether a witness is “qualified on the
    basis of training or experience” to offer an expert opinion about the applicable
    standard of medical care,
    the court shall consider whether, at the time the claim arose or at the
    time the testimony is given, the witness: (1) is board certified or has
    other substantial training or experience in an area of medical practice
    relevant to the claim; and (2) is actively practicing medicine in
    rendering medical care services relevant to the claim.
    TEX. CIV. PRAC. & REM. CODE ANN. § 74.401(c).
    A physician serving as an expert need not be a specialist in the particular area
    of the profession for which his testimony is offered. See Owens, 478 S.W.3d at 185;
    Rittger v. Danos, 
    332 S.W.3d 550
    , 558–59 (Tex. App.—Houston [1st Dist.] 2009,
    no pet.); see also Bailey v. Amaya Clinic Inc., 
    402 S.W.3d 359
    , 363–64 (Tex. App.—
    Houston [14th Dist.] 2013, no pet.) (orthopedic surgeon qualified to opine about
    standard of care applicable to dermatologist who was treating plaintiff for weight
    loss with liposuction); Blan v. Ali, 
    7 S.W.3d 741
    , 745–46 (Tex. App.—Houston
    [14th Dist.] 1999, no pet.) (“Despite the fact that we live in a world of niche medical
    38
    practices and multilayer specializations, there are certain standards of medical care
    that apply to multiple schools of practice and any medical [physician].             To
    categorically disqualify a physician from testifying as to the standard of care solely
    because he is from a different school of practice than the [physicians] charged with
    malpractice ignores the criteria set out in [TMLA] and [Texas] Rule [of Evidence]
    702.”). The plain language of the TMLA does not focus on the physician’s area of
    expertise, but on the particular condition or circumstances involved in the plaintiff’s
    claim. See TEX. CIV. PRAC. & REM. CODE ANN. § 74.401(a)(2); Rittger, 
    332 S.W.3d at 558
    ; see also Lee v. Le, No. 01-18-00309-CV, 
    2018 WL 4923938
    , at *4 (Tex.
    App.—Houston [1st Dist.] Oct. 11, 2018, no pet.) (mem. op.) (“[T]he applicable
    standard of care and an expert’s ability to opine on it are dictated by the medical
    condition involved in the claim and the expert’s familiarity and experience with that
    condition.” (internal quotations omitted)).     The critical inquiry is whether the
    expert’s expertise goes to the very matter on which he is to give an opinion. See
    Broders, 924 S.W.2d at 152–53; Mangin, 480 S.W.3d at 707. It is Sam’s burden to
    show that Dr. Paine is qualified to opine on the applicable standard of care as to Dr.
    James. See Rittger, 
    332 S.W.3d at 558
    –59; Mem’l Hermann Healthcare Sys. v.
    Burrell, 
    230 S.W.3d 755
    , 757, 762 (Tex. App.—Houston [14th Dist.] 2007, no pet.).
    Dr. Paine’s expert reports and CV show that he is a licensed physician and is
    board certified in obstetrics and gynecology. He has been practicing medicine in the
    39
    field of obstetrics and gynecology for thirty-five years. Currently, he is a member
    of the teaching faculty as an associate professor in the department of obstetrics and
    gynecology at the University of Texas Health Science Center in San Antonio. In his
    position as an associate professor, he trains residents and students in obstetrics and
    gynecology. He is actively practicing medicine in the field of obstetrics and
    gynecology, and he was practicing medicine at the time Sam’s claims arose. See
    TEX. CIV. PRAC. & REM. CODE ANN. § 74.401.
    Dr. Paine has extensive experience in the field of obstetrics and gynecology,
    and he has performed thousands of hysterectomies during his career. He has
    knowledge of the accepted standards of medical and surgical care required for
    patients needing hysterectomies. This includes knowledge of the standards of
    pre-operative, inter-operative, and post-operative care required for patients who
    have hysterectomies.
    When Dr. Paine treats patients requiring hysterectomies, he provides
    pre-operative, inter-operative, and post-operative care to his patients. Post-operative
    care includes “following [a] patient after [a] surgery is complete[] to diagnose and
    treat any complications that may arise from the surgical procedure.” This case
    involves the purported failure of appellants, including Dr. James, to appropriately
    care for and treat Sam after a hysterectomy, and Dr. Paine is familiar with the type
    of post-operative care a patient, such as Sam, should receive and how post-operative
    40
    complications, like those experienced by Sam, should be managed and treated. See
    Broders, 924 S.W.2d at 152–53 (focus is on “whether the expert’s expertise goes to
    the very matter on which he . . . is to give an opinion”); Baylor Univ. Med. Ctr. v.
    Biggs, 
    237 S.W.3d 909
    , 916 (Tex. App.—Dallas 2007, pet. denied) (“[T]he focus is
    on the fit between the subject matter at issue and the expert’s familiarity with it, not
    on a comparison of the expert’s title or specialty with that of the defendant . . . .”
    (internal quotations omitted)); see also Owens, 478 S.W.3d at 186–87 (specific issue
    in case was whether defendant physicians failed to timely and appropriately
    diagnose and treat plaintiff’s condition and expert report showed that expert had
    experience treating patients with condition suffered by plaintiff and he was familiar
    with the standard of care applicable to physicians who care for patients with same
    condition with which plaintiff presented).
    We note that as to the standard of care and breach of the of the standard of
    care for Dr. James, Dr. Paine, in his expert reports, states that bowel injuries, like a
    bowel perforation, are a well-known complication of a hysterectomy. On average
    they occur in one out of every 700 cases. But if a hysterectomy is performed when
    adhesions are present and when an extensive bowel dissection is also required, the
    rate of bowel injuries increases. A bowel perforation should be diagnosed three days
    after a hysterectomy.
    41
    According     to   Dr.   Paine,   Dr.    James   was    the   general   surgeon
    “following . . . Sam[] post-hysterectomy.” Because Dr. James was the general
    surgeon “following” Sam after her surgery, once Sam’s bowel perforation was
    diagnosed on the sixth day after her surgery, the standard of care required Dr. James
    to act upon the diagnosis by surgically repairing the bowel perforation immediately
    or at least recommending surgical repair of the bowel perforation. But Dr. James
    did not do so, and instead joined in the “conservative” treatment plan with Dr. Kuhn.
    (Internal quotations omitted.) There is no precedent for “conservative management”
    of a bowel perforation when there is evidence of bowel contents and gas free in the
    peritoneal cavity. (Internal quotations omitted.) By failing to recommend surgical
    repair of Sam’s bowel perforation and by failing to surgically repair the bowel
    perforation immediately, Dr. James breached the standard of care. Further, Dr.
    James breached the standard of care by waiting until the tenth day after Sam’s initial
    surgery to return Sam to surgery to repair the bowel perforation because it should
    have been repaired immediately upon its diagnosis.
    Here, we conclude that Sam has met her burden of establishing that Dr. Paine
    is qualified to offer an opinion on the standard of care related to Dr. James. See TEX.
    CIV. PRAC. & REM. CODE ANN. § 74.401(a) (expert meets requirements of Texas
    Civil Practice and Remedies Code [section] 74.401 if he (1) is practicing medicine,
    (2) has knowledge of accepted standard of care for diagnosis, care, or treatment of
    42
    illness, injury, or condition involved in claim, and (3) is qualified on basis of training
    or experience to offer expert opinion about accepted standard of care); Lee, 
    2018 WL 4923938
    , at *4 (“[T]he applicable standard of care and an expert’s ability to
    opine on it are dictated by the medical condition involved in the claim and the
    expert’s familiarity and experience with that condition.” (internal quotations
    omitted)). The Texas Supreme Court has cautioned reviewing courts from drawing
    expert qualifications too narrowly, as Dr. James has requested us to do in this case,
    and we reemphasize that a proffered expert need not practice in the same specialty
    as the defendant physician to qualify as an expert in the case. See Larson v.
    Downing, 
    197 S.W.3d 303
    , 305 (Tex. 2006); Roberts v. Williamson, 
    111 S.W.3d 113
    , 122 (Tex. 2003); see also Owens, 478 S.W.2d at 186; Blan, 
    7 S.W.3d at 745
    (general surgeon qualified to testify about standard of care for post-operative
    procedures performed by gynecologist because post-operative procedures are
    common to both fields).
    We hold that the trial court did not err in overruling Dr. James’s objections
    and denying Dr. James’s motion to dismiss Sam’s health care liability claim against
    him on the ground that Dr. Paine is not qualified to offer an opinion on the standard
    of care related to Dr. James.
    We overrule this portion of Dr. James’s sole issue.
    43
    B.    Dr. Paine’s Qualifications Related to Causation
    In another portion of his sole issue, Dr. James argues that Dr. Paine is not
    qualified to offer an opinion on causation related to Dr. James because Dr. Paine’s
    expert reports and CV do not show that Dr. Paine has “experience in handling
    patients with peritonitis and sepsis secondary to a bowel perforation” or that he has
    the qualifications “to opine on the cause of [Sam’s] alleged damages” and the
    ramifications of the “alleged four[-]day delay in [the] surgical repair of [Sam’s]
    bowel perforation.”
    To be qualified to opine on the causal relationship between a defendant
    physician’s alleged failure to meet an applicable standard of care and the plaintiff’s
    claimed injury, harm, or damages, the author of an expert report must be a physician
    who is qualified to render opinions on such causal relationships under the Texas
    Rules of Evidence. See TEX. CIV. PRAC. & REM. CODE ANN. § 74.403(a); see id.
    § 74.351(r)(5)(C) (“[e]xpert” means “with respect to a person giving opinion
    testimony about the causal relationship between the injury, harm, or damages
    claimed and the alleged departure from the applicable standard of care in any health
    care liability claim, a physician who is otherwise qualified to render opinions on
    such causal relationship under the Texas Rules of Evidence” (internal quotations
    omitted)); Cornejo, 446 S.W.3d at 120.
    44
    An expert witness may be qualified on the basis of knowledge, skill,
    experience, training, or education to testify on scientific, technical, or other
    specialized subjects if the testimony would “assist the trier of fact” in understanding
    the evidence or determining a fact issue. Cornejo, 446 S.W.3d at 121 (internal
    quotations omitted); see TEX. R. EVID. 702. Thus, a plaintiff must show that her
    expert has “knowledge, skill, experience, training, or education” about the specific
    issue before the court that would qualify the expert to give an opinion on that
    particular subject. Broders, 924 S.W.2d at 153–54 (internal quotations omitted); see
    also Cornejo, 446 S.W.3d at 121.
    Not every licensed physician is qualified to testify on every medical question.
    See Broders, 942 S.W.2d at 152–53; Cornejo, 446 S.W.3d at 121. Yet, a physician
    need not practice in the particular field about which he is testifying so long as he can
    demonstrate that he has knowledge, skill, experience, training, or education about
    the specific issue before the court that would qualify him to give an opinion on that
    subject. Cornejo, 446 S.W.3d at 121. Simply put, what is required is that the
    physician demonstrate that he is qualified to opine on the specific issue before the
    court. Puppala, 564 S.W.3d at 202.
    Here    it   is   asserted   that   Dr.   James   was    the   general   surgeon
    “following . . . Sam[] post-hysterectomy.” Because Dr. James was the general
    surgeon “following” Sam after her surgery, once Sam’s bowel perforation was
    45
    diagnosed on the sixth day after her surgery, Dr. James should have acted upon the
    diagnosis by surgically repairing the bowel perforation immediately or at least
    recommending surgical repair of the bowel perforation. Instead, Dr. James joined
    in the “conservative” treatment plan with Dr. Kuhn, although there is no precedent
    for “conservative management” of a bowel perforation when there is evidence of
    bowel contents and gas free in the peritoneal cavity. (Internal quotations omitted.)
    By failing to recommend surgical repair of Sam’s bowel perforation and by failing
    to surgically repair the bowel perforation immediately, Dr. James breached the
    standard of care. Dr. James also breached the standard of care by waiting until the
    tenth day after Sam’s initial surgery to return Sam to surgery to repair the bowel
    perforation because it should have been repaired immediately upon its diagnosis.
    It is also asserted that Dr. James’s breaches of the standard of care caused
    Sam’s condition to worsen and endangered her life. A bowel perforation is a surgical
    emergency that requires immediate intervention. Immediate exploration, wash out
    of the peritoneal cavity, and repair of the bowel perforation is required. Any course
    of action other than immediate exploration, wash out, and repair, causes worsening
    peritonitis, sepsis, and possible death. Dr. James’s failure to recommend surgical
    exploration and repair of Sam’s bowel perforation upon its diagnosis, to not
    immediately repair the bowel perforation upon its diagnosis, and to not repair Sam’s
    bowel perforation until the tenth day after her initial surgery caused Sam’s condition
    46
    to deteriorate and allowed for the continued leakage of bowel contents into the
    peritoneal cavity. Without a repair of Sam’s bowel perforation, bowel contents
    continued to flow into Sam’s peritoneal cavity “with all the bacteria, chemicals[,]
    and irritants [that] allow[] [an] infection to grow and worsen.” The bowel leakage
    caused severe damage to Sam’s physiology and permanent residual damage, and it
    allowed for Sam’s peritonitis and sepsis to grow worse. And because Sam’s
    infection was allowed to grow, this led to a more complicated recovery process for
    Sam, a longer hospital stay, and long-term damage. Sam could not recover from the
    bowel perforation until it was actually repaired.
    Further, during the surgery to repair Sam’s bowel perforation, a diverting
    ileostomy had to be performed. The ileostomy was required because of a marked
    inflammatory reaction to bowel leakage for an extended length of time, i.e., four
    days after the bowel-perforation diagnosis and ten days after Sam’s initial surgery.
    Had the bowel perforation been repaired at the time it was diagnosed, a colostomy
    would have been possible.
    Sam has the burden of establishing that Dr. Paine has “knowledge, skill,
    experience, training, or education” about whether Dr. James’s breaches of the
    standard of care—by failing to recommend surgical exploration and repair of Sam’s
    bowel perforation upon its diagnosis, not immediately repairing the bowel
    perforation upon its diagnosis, and not repairing Sam’s bowel perforation until the
    47
    tenth day after Sam’s initial surgery—caused Sam’s claimed injury, harm, or
    damages.    See Matagorda v. Nursing & Rehab. Ctr., L.L.C. v. Brooks, No.
    13-16-00266-CV, 
    2017 WL 127867
    , at *6 (Tex. App.—Corpus Christi–Edinburg
    Jan. 12, 2017, no pet.) (mem. op.) (internal quotations omitted); Diagnostic
    Research Grp. v. Vora, 
    473 S.W.3d 861
    , 869–70 (Tex. App.—San Antonio 2015,
    no pet.); see also Cornejo, 446 S.W.3d at 121 (plaintiffs required to establish expert
    qualified on basis of knowledge, skill, experience, training, or education to offer
    opinion concerning causal link between alleged breaches of standard of care and
    injuries suffered); Burrell, 
    230 S.W.3d at 757, 762
     (party offering witness as expert
    must establish witness is qualified).
    In his expert reports, Dr. Paine states that he is a licensed physician and is
    board certified in obstetrics and gynecology. He has been practicing in the field of
    obstetrics and gynecology for thirty-five years. Currently, he is a member of the
    teaching faculty as an associate professor in the department of obstetrics and
    gynecology at the University of Texas Health Science Center in San Antonio. In his
    position as an associate professor, he trains residents and students in obstetrics and
    gynecology.
    Dr. Paine is actively practicing medicine in the field of obstetrics and
    gynecology, and he was practicing medicine at the time Sam’s claims arose. Dr.
    Paine has extensive experience in the field of obstetrics and gynecology, and he, as
    48
    part of his medical practice, has performed thousands of hysterectomies during his
    career. He has knowledge of the accepted standards of medical and surgical care
    required for patients needing hysterectomies. This includes knowledge of the
    standards of pre-operative, inter-operative, and post-operative care required for
    patients who have hysterectomies.
    When Dr. Paine treats patients requiring hysterectomies, he provides
    pre-operative, inter-operative, and post-operative care to his patients. Post-operative
    care includes “following [a] patient after [a] surgery is complete[] to diagnose and
    treat any complications that may arise from the surgical procedure.” This case
    involves the purported failure of appellants, including Dr. James, to appropriately
    care for and treat Sam after a hysterectomy, and Dr. Paine is familiar with the type
    of post-operative care a patient, such as Sam, should receive and how post-operative
    complications, like those experienced by Sam, should be managed and treated.
    We conclude that Dr. Paine’s expert reports and CV demonstrate that he is
    qualified to offer an opinion on the causal link between Dr. James’s alleged breaches
    while providing post-operative care after Sam’s hysterectomy and Sam’s injuries,
    harm, and damages.        See Jassin v. Bennett, No. 10-12-00053-CV, 
    2012 WL 5974020
    , at *5 (Tex. App.—Waco Nov. 29, 2012, no pet.) (mem. op.) (“We cannot
    say that the trial court abused its discretion in . . . finding that Dr. Branch is qualified
    to provide an expert report on causation for the complications that allegedly arose
    49
    from Dr. Jassin’s post-operative care following a sinus surgery that Dr. Branch says
    he has performed approximately 200 times, along with providing the follow-up care
    for those surgeries.”); Sloman-Moll v. Chavez, No. 04-06-00589-CV, 
    2007 WL 595134
    , at *3–4 (Tex. App.—San Antonio Feb. 28, 2007, pet. denied) (mem. op.)
    (“It is axiomatic that a physician trained to perform a surgery is also trained to
    manage surgical complications.”); Keo v. Vu, 
    76 S.W.3d 725
    , 733 (Tex. App.—
    Houston [1st Dist.] 2002, pet. denied) (holding physician who regularly performed
    surgery on head and neck was qualified to give opinion about issues common to all
    surgeries, including treatment of post-operative infections); see also Columbia N.
    Hills Hosp. Subsidiary, L.P. v. Alvarez, 
    382 S.W.3d 619
    , 630 (Tex. App.—Fort
    Worth 2012, pet. denied) (“[A] physician needs only to show how he is qualified to
    opine on the cause of the plaintiff’s injury.”).
    Further, because we have concluded that that the trial court properly
    determined that Dr. Paine is qualified to offer an opinion on the standard of care as
    to Dr. James, it would have been reasonable for the trial court to also conclude that
    Dr. Paine is qualified to offer an opinion on Dr. James’s failure to meet the standard
    of care and the resulting harm. See Healy v. Mowat-Cudd, No. 04-20-00479-CV,
    
    2021 WL 603369
    , at *2 n.1 (Tex. App.—San Antonio Feb. 17, 2021, no pet.) (mem.
    op.); Legend Oaks-S. San Antonio, LLC v. Molina ex rel. Estates of Rocamontes, No.
    04-14-00289-CV, 
    2015 WL 693225
    , at *5 (Tex. App.—San Antonio Feb. 18, 2015,
    50
    no pet.) (mem. op.); Jassin, 
    2012 WL 5974020
    , at *5; Hillcrest Baptist Med. Ctr. v.
    Payne, No. 10-11-00191-CV, 
    2011 WL 5830469
    , at *7 (Tex. App.—Waco Nov. 16,
    2011, pet. denied) (mem. op.); Whisenant v. Arnett, 
    339 S.W.3d 920
    , 927–28 (Tex.
    App.—Dallas 2011, no pet.).
    We hold that the trial court did not err in overruling Dr. James’s objections
    and denying Dr. James’s motion to dismiss Sam’s health care liability claim against
    him on the ground that Dr. Paine is not qualified to offer an opinion on causation
    related to Dr. James.
    We overrule this portion of Dr. James’s sole issue.
    C.    Causation Related to Dr. James
    In the remaining portion of his sole issue, Dr. James argues that Dr. Paine’s
    expert reports do not adequately address causation as it relates to him because the
    expert reports do not establish a causal link between Dr. James’s conduct and Sam’s
    injuries, Dr. Paine’s causation opinion is conclusory and speculative, and “Dr. Paine
    fails to establish that ‘but for’ Dr. James’[s] alleged negligence, Sam’s outcome
    would have been any different.”
    An expert report must provide a “fair summary” of the expert’s opinion about
    the causal relationship between the failure of a defendant physician to provide care
    in accord with the applicable standard of care and the plaintiff’s claimed injury,
    harm, or damages. TEX. CIV. PRAC. & REM. CODE ANN. § 74.351(r)(6); see also
    51
    Potts, 392 S.W.3d at 630. The expert report must explain how and why the
    defendant physician’s breach of the standard of care proximately caused the
    plaintiff’s injury. Zamarripa, 526 S.W.3d at 459–60. An expert report need not
    marshal all the plaintiff’s proof necessary to establish causation at trial, and it need
    not anticipate or rebut all possible defensive theories that may ultimately be
    presented to the trial court. Wright, 79 S.W.3d at 52; Cornejo, 446 S.W.3d at 123.
    But an expert cannot simply opine that the breach caused the injury. Jelinek, 328
    S.W.3d at 539.
    Causation     consists    of    two        components:   (1) cause-in-fact    and
    (2) foreseeability. McCoy, 554 S.W.3d at 658. A defendant physician’s breach was
    a cause-in-fact of the plaintiff’s injury if the breach was a substantial factor in
    bringing about the harm, and absent the breach the harm would not have occurred.
    Id. Even if the harm would not have occurred absent the defendant physician’s
    breach, “the connection between the defendant and the plaintiff’s injuries simply
    may be too attenuated” for the breach to qualify as a substantial factor. Allways Auto
    Grp., 530 S.W.3d at 149 (internal quotations omitted). A breach is not a substantial
    factor if it “does no more than furnish the condition that makes the plaintiff’s injury
    possible.”   Id. A defendant physician’s breach is a foreseeable cause of the
    plaintiff’s injury if a physician of ordinary intelligence would have anticipated the
    danger caused by the negligent act or omission. Puppala, 564 S.W.3d at 197.
    52
    As to standard of care and breach of the standard of care related to Dr. James,
    Dr. Paine, in his expert reports, states that bowel injuries, like a bowel perforation,
    are a well-known complication of a hysterectomy. On average they occur in one out
    of every 700 cases. But if a hysterectomy is performed when adhesions are present
    and when an extensive bowel dissection is also required, the rate of bowel injuries
    increases.
    Because Dr. James was the general surgeon “following . . . Sam[]
    post-hysterectomy,” once Sam’s bowel perforation was diagnosed on the sixth day
    after surgery, the standard of care required Dr. James to act upon the diagnosis by
    surgically repairing the bowel perforation immediately or at least recommending
    surgical repair of the bowel perforation. But James did not do so. Instead, he joined
    in the “conservative” treatment plan with Dr. Kuhn. (Internal quotations omitted.)
    There is no precedent for “conservative management” of a bowel perforation when
    there is evidence of bowel contents and gas free in the peritoneal cavity. (Internal
    quotations omitted.) By failing to recommend surgical repair of Sam’s bowel
    perforation and failing to surgically repair the bowel perforation immediately after
    its diagnosis, Dr. James breached the standard of care. Dr. James also breached the
    standard of care by waiting until the tenth day after Sam’s initial surgery to return
    Sam to surgery to repair the bowel perforation because it should have been repaired
    immediately upon its diagnosis.
    53
    As to causation, Dr. Paine, in his expert reports, states that because of the
    aforementioned breaches of the standard of care by Dr. James, Sam’s condition
    worsened and endangered her life. Dr. Paine explained that a bowel perforation is a
    surgical emergency that requires immediate intervention. Immediate exploration,
    wash out of the peritoneal cavity, and repair of the bowel perforation is required.
    Any course of action other than immediate exploration, wash out, and repair, causes
    worsening peritonitis, sepsis, and possible death. According to Dr. Paine, Dr.
    James’s failure to recommend surgical exploration and repair of Sam’s bowel
    perforation upon its diagnosis, to not surgically repair the bowel perforation
    immediately upon its diagnosis, and to not repair Sam’s bowel perforation until the
    tenth day after her initial surgery caused Sam’s condition to deteriorate and allowed
    for the continued leakage of bowel contents into the peritoneal cavity. Without a
    repair of Sam’s bowel perforation, bowel contents continued to flow into Sam’s
    peritoneal cavity “with all the bacteria, chemicals[,] and irritants [that] allow[] [an]
    infection to grow and worsen.” The bowel leakage caused severe damage to Sam’s
    physiology and permanent residual damage. And because the infection was allowed
    to grow, this led to a more complicated recovery process for Sam, a longer hospital
    stay, and long-term damage. Sam could not recover from the bowel perforation until
    it was actually repaired.
    54
    Further, during the surgery to repair Sam’s bowel perforation, a diverting
    ileostomy had to be performed. According to Dr. Paine, the ileostomy was required
    because of a marked inflammatory reaction to bowel leakage for an extended length
    of time, i.e., four days after the bowel-perforation diagnosis and ten days after Sam’s
    initial surgery. Had the bowel perforation been repaired at the time it was diagnosed,
    a colostomy would have been possible.
    Dr. Paine also explains that peritonitis and sepsis, which are life-threatening
    conditions, can arise from a bowel perforation, and in such cases, they will not be
    resolved until the bowel perforation is repaired. Here, because of Dr. James’s
    breaches of the standard of care, Sam’s peritonitis and sepsis grew worse—which is
    what happens when an infection is not properly treated and the source of the
    infection is not appropriately and timely addressed. Sam’s condition worsened and
    endangered her life.
    In determining whether an expert’s causation opinion is conclusory, we must
    remain mindful that expert-report challenges are made at an early, pre-discovery
    stage in the litigation, not when the merits of the health care liability claim are being
    presented to the fact finder to determine liability. Puppala, 564 S.W.3d at 198. To
    provide more than a conclusory statement on causation, an expert report must simply
    include an “explanation tying the conclusion to the facts” and showing “how and
    why the breach caused the injury based on the facts presented.” Jelinek, 
    328 S.W.3d 55
    at 539–40; see also Puppala, 564 S.W.3d at 197. The expert report need only
    provide some basis that the defendant physician’s act or omission proximately
    caused injury. Owens, 478 S.W.3d at 187–88; see also Palacios, 46 S.W.3d at 879
    (explaining “a plaintiff need not present evidence in the report as if it were actually
    litigating the merits. . . . [T]he information in the report does not have to meet the
    same requirements as the evidence offered in a summary-judgment proceeding or at
    trial”).
    Here, Dr. Paine’s causation opinion is in line with those found sufficient in
    other health-care-liability cases at this stage of the litigation where experts have
    opined that had the defendant physician not breached the standard of care, a proper
    diagnosis and medical intervention would have been achieved and the plaintiff’s
    injury, harm, or damages would have been avoided. See, e.g., Whitmire, 
    2020 WL 4983321
    , at *15–16; Puppala, 564 S.W.3d at 198–202; Owens, 478 S.W.3d at 187–
    91. An expert may show causation by explaining a chain of events that begins with
    the defendant physician’s negligence and ends in injury to the plaintiff.          See
    Whitmire, 
    2020 WL 4983321
    , at *16; Owens, 478 S.W.3d at 189; McKellar, 367
    S.W.3d at 485–86; see also Hinojosa, 
    2016 WL 7383819
    , at *6 (expert report
    specified signs and symptoms that should have prompted defendant physician to
    admit patient to hospital for treatment; expert then opined that if patient had been
    admitted at least two things would have occurred). Dr. Paine’s expert reports explain
    56
    the connection between Dr. James’s alleged negligent conduct and the claimed
    injury, harm, or damages. See Tiscareno, 495 S.W.3d at 614 (“[T]he expert must at
    a minimum explain the connection between [the physician’s] conduct and the injury
    to the patient.”); see also Whitmire, 
    2020 WL 4983321
    , at *16; Owens, 478 S.W.3d
    at 189 (expert may show causation by explaining chain of events that begins with
    defendant physician’s negligence and ends in injury to plaintiff); McKellar, 367
    S.W.3d at 485–86.
    Finally, we note that Dr. James asserts that Dr. Paine’s expert reports do not
    establish that without Dr. James’s purported negligence “Sam’s outcome would have
    been any different.” But an expert report need not address all hypothetical scenarios.
    See Whitmire, 
    2020 WL 4983321
    , at *16; Garcia, 
    2009 WL 3223178
    , at *6. And
    although the law requires an expert report to link the expert’s conclusion on
    causation with the alleged breach of the standard of care, nothing requires the expert
    report to address or rule out all other possible scenarios. See Whitmire, 
    2020 WL 4983321
    , at *16; Garcia, 
    2009 WL 3223178
    , at *6; see also Owens, 478 S.W.3d at
    187 (report “need not anticipate or rebut all possible defensive theories that may
    ultimately be presented” in case). The correctness of Dr. Paine’s opinion is not at
    issue in this stage of the litigation. See Potts, 392 S.W.3d at 632; Whitmire, 
    2020 WL 4983321
    , at *16.
    57
    We conclude that the trial court could have reasonably determined that Dr.
    Paine’s expert reports represent an “objective good faith effort” to inform Dr. James
    of the causal relationship between Dr. James’s purported failure to provide care in
    accord with the appliable standard of care and the claimed injury, harm, or damages.
    See Zamarripa, 526 S.W.3d at 460 (as long as report makes “a good-faith effort to
    explain, factually, how proximate cause is going to be proven,” it satisfies TMLA’s
    threshold requirement); Kelly, 
    255 S.W.3d at 679
     (emphasizing expert reports “are
    simply a preliminary method to show a plaintiff has a viable cause of action that is
    not frivolous or without expert support”). Thus, we hold that the trial court did not
    err in overruling Dr. James’s objections and denying Dr. James’s motion to dismiss
    Sam’s health care liability claim against him on the ground that Dr. Paine’s expert
    reports do not adequately address causation as to Dr. James.
    We overrule the remaining portion of Dr. James’s sole issue.21
    D.    Vicarious Liability Related to Metropolitan Houston
    In its sole issue, Metropolitan Houston argues that the trial court erred in
    overruling its objections to Dr. Paine’s expert reports and denying its motion to
    dismiss Sam’s vicarious liability health care liability claim against it because Dr.
    Paine is not qualified to offer an opinion on the standard of care and causation related
    21
    Due to our disposition, we need not address Dr. James’s request for attorney’s fees
    and costs. See TEX. R. APP. P. 47.1.
    58
    to Dr. James and Dr. Paine’s expert reports do not adequately address causation as
    it relates to Dr. James.
    In her petition, Sam alleges that Metropolitan Houston is vicariously liable for
    the conduct of Dr. James. Generally, when a plaintiff brings health care liability
    claims against more than one defendant physician or health care provider, the expert
    report must set forth the standard of care and breach of the standard of care as to
    each defendant and explain the causal relationship between each defendant’s
    individual acts or omissions and the claimed injury. See TEX. CIV. PRAC. & REM.
    CODE ANN. § 74.351(a), (r)(6); Seton Family, 593 S.W.3d at 792; Pena, 530 S.W.3d
    at 175. Yet, when a plaintiff brings a health care liability claim based on a vicarious
    liability theory against a defendant health care provider, an expert report that
    adequately implicates the actions of that party’s agent or employee is sufficient as
    to the defendant health care provider. Gardner, 274 S.W.3d at 671–72; Seton
    Family, 593 S.W.3d at 792; see also Owens, 478 S.W.3d at 191 (“[W]hen a health
    care liability claim involves a vicarious liability theory, either alone or in
    combination with other theories, an expert report that meets the statutory standards
    as to the employee is sufficient to implicate the employer’s conduct under the
    vicarious theory.” (alteration in original) (internal quotations omitted)). In other
    words, when a health care liability claim against a defendant health care provider is
    based on vicarious liability, an expert report that meets the statutory standards as to
    59
    an agent or employee is sufficient to implicate the health care provider’s conduct.
    Potts, 392 S.W.3d at 632; Seton Family, 593 S.W.3d at 792; see also Owens, 478
    S.W.3d at 191–92 (expert report that is sufficient as to employee or agent, whose
    alleged negligent conduct vicarious liability claim was based, is also sufficient as to
    employer health care provider).
    Having held that the trial court did not err in overruling Dr. James’s objections
    to Dr. Paine’s expert reports and denying Dr. James’s motion to dismiss Sam’s direct
    liability health care liability claim against him because Dr. Paine’s expert reports
    meet the requirements of chapter 74 related to Dr. James, we hold that Sam may also
    proceed on the vicarious liability health care liability claim against Metropolitan
    Houston which is based on the conduct of Dr. James. See Potts, 392 S.W.3d at 632;
    Gardner, 274 S.W.3d at 671–72; Owens, 478 S.W.3d at 191–92; see also George,
    
    261 S.W.3d at 295
     (“[I]f the expert report is sufficient as to the claims against Dr.
    Ward, and we have held that it is[,] . . . then the report is sufficient as to [the] claims
    against CND that are based on Dr. Ward’s alleged negligence.”).
    We overrule Metropolitan Houston’s sole issue.22
    22
    Due to our disposition, we need not address Metropolitan Houston’s request for
    attorney’s fees and costs. See TEX. R. APP. P. 47.1.
    60
    Dr. Morales, West Houston Radiology, and Radiology Partners
    In his sole issue, Dr. Morales argues that the trial court erred in overruling his
    objections to Dr. Paine’s expert reports and denying his motion to dismiss Sam’s
    health care liability claim against him because Dr. Paine is not qualified to offer an
    opinion on the standard of care and causation related to Dr. Morales and Dr. Paine’s
    expert reports do not adequately address causation as it relates to Dr. Morales. In
    their sole issues, West Houston Radiology and Radiology Partners argue that the
    trial court erred in overruling their objections to Dr. Paine’s expert reports and
    denying their motions to dismiss Sam’s vicarious liability health care liability claim
    against them because Dr. Paine is not qualified to offer an opinion on the standard
    of care and causation related to Dr. Morales and Dr. Paine’s expert reports do not
    adequately address causation as it relates to Dr. Morales.
    A.    Preservation
    In portions of their sole issues, Dr. Morales, West Houston Radiology, and
    Radiology Partners argue that the trial court erred in overruling their objections to
    Dr. Paine’s expert reports and in denying their motions to dismiss Sam’s health care
    liability claims against them because Dr. Paine is not qualified to offer an opinion
    on the standard of care related to Dr. Morales and Dr. Paine’s expert reports do not
    adequately address causation as it relates to Dr. Morales.
    61
    To preserve a complaint for appellate review, the record must show that the
    complaint was made to the trial court by a timely request, objection, or motion and
    the trial court either ruled on the party’s request, objection, or motion, or refused to
    rule, and the party objected to that refusal. TEX. R. APP. P. 33.1(a). If a party fails
    to do this, error is not preserved, and the complaint is waived. Bushell v. Dean, 
    803 S.W.2d 711
    , 712 (Tex. 1991); see also Humble Surgical Hosp., LLC v. Davis, 
    542 S.W.3d 12
    , 21 (Tex. App.—Houston [14th Dist.] 2017, pet. denied) (“Rule 33.1
    requires the appealing party to adequately raise issues before the trial court to give
    the trial court notice of [the party’s] complaint.”).
    Texas Civil Practice and Remedies Code section 74.351(a) states, in pertinent
    part, that a defendant physician or health care provider “whose conduct is implicated
    in a[n] [expert] report must file and serve any objection to the sufficiency of the
    report not later than the 21st day after the date the report is served or the 21st day
    after the date the defendant’s answer is filed” and the failure to do so waives the
    defendant’s objections. See TEX. CIV. PRAC. & REM. CODE ANN. § 74.351(a). In the
    trial court, Dr. Morales, West Houston Radiology, and Radiology Partners timely
    objected to Dr. Paine’s expert reports and requested that Sam’s health care liability
    claims against them be dismissed. In doing so, they only objected that Dr. Paine is
    not qualified to offer an opinion on causation related to Dr. Morales. Dr. Morales,
    West Houston Radiology, and Radiology Partners did not assert in their objections
    62
    and motions to dismiss that Dr. Paine is not qualified to offer an opinion on the
    standard of care related to Dr. Morales or that Dr. Paine’s expert reports do not
    adequately address causation as it relates to Dr. Morales.
    Because Dr. Morales, West Houston Radiology, and Radiology Partners did
    not raise in the trial court their complaints that Dr. Paine is not qualified to offer an
    opinion on the standard of care and that Dr. Paine’s expert reports do not adequately
    address causation, we hold that they have not preserved those complaints for our
    review. See id.; TEX. R. APP. P. 33.1(a); Armenta v. Jones, No. 01-17-00439-CV,
    
    2018 WL 1095388
    , at *2, *7 (Tex. App.—Houston [1st Dist.] Mar. 1, 2018, no pet.)
    (mem. op.) (where defendant physician did not object to expert report “on the basis
    of inadequacy of the report as to causation,” defendant’s complaint about causation
    waived because it was not raised in trial court); Arnett, 
    339 S.W.3d at 925
    –26
    (defendant physician’s complaint that expert report did not sufficiently address
    causation because it did not rule out potential causes of wound infection and pain
    not preserved when it was raised for first time on appeal); Williams v. Mora, 
    264 S.W.3d 888
    , 890–91 (Tex. App.—Waco 2008, no pet.) (defendant physician’s only
    timely objection to expert report was that two statements were speculative; all other
    complaints about expert report that were not raised in trial court were waived,
    including complaints raised for the first time on appeal). We address the remaining
    63
    portions of the issues raised by Dr. Morales, West Houston Radiology, and
    Radiology Partners that are preserved for our review.
    B.    Dr. Paine’s Qualifications to Opine on Causation
    In the remaining portion of his sole issue, Dr. Morales argues that Dr. Paine
    is not qualified to offer an opinion on causation related to Dr. Morales because Dr.
    Paine “does not address his experience in caring for patients with peritonitis and
    sepsis secondary to a bowel perforation” and Dr. Paine’s expert reports and CV “do
    not reflect qualifications allowing him to opine on the cause of [Sam’s] alleged
    damages” or the ramifications of the “alleged four[-]day delay in [the] surgical repair
    of [Sam’s] bowel perforation.”
    To be qualified to opine on the causal relationship between a defendant
    physician’s alleged failure to meet an applicable standard of care and the plaintiff’s
    claimed injury, harm, or damages, the author of an expert report must be a physician
    who is qualified to render opinions on such causal relationships under the Texas
    Rules of Evidence. See TEX. CIV. PRAC. & REM. CODE ANN. § 74.403(a); see id.
    § 74.351(r)(5)(C) (“[e]xpert” means “with respect to a person giving opinion
    testimony about the causal relationship between the injury, harm, or damages
    claimed and the alleged departure from the applicable standard of care in any health
    care liability claim, a physician who is otherwise qualified to render opinions on
    64
    such causal relationship under the Texas Rules of Evidence” (internal quotations
    omitted)); Cornejo, 446 S.W.3d at 120.
    An expert witness may be qualified on the basis of knowledge, skill,
    experience, training, or education to testify on scientific, technical, or other
    specialized subjects if the testimony would “assist the trier of fact” in understanding
    the evidence or determining a fact issue. Cornejo, 446 S.W.3d at 121 (internal
    quotations omitted); see TEX. R. EVID. 702. Thus, a plaintiff must show that her
    expert has “knowledge, skill, experience, training, or education” about the specific
    issue before the court that would qualify the expert to give an opinion on that
    particular subject. Broders, 924 S.W.2d at 153–54 (internal quotations omitted); see
    also Cornejo, 446 S.W.3d at 121.
    Not every licensed physician is qualified to testify on every medical question.
    See Broders, 942 S.W.2d at 152–53; Cornejo, 446 S.W.3d at 121. Yet, a physician
    need not practice in the particular field about which he is testifying so long as he can
    demonstrate that he has knowledge, skill, experience, training, or education about
    the specific issue before the court that would qualify him to give an opinion on that
    subject. Cornejo, 446 S.W.3d at 121. Simply put, what is required is that the
    physician demonstrate that he is qualified to opine on the specific issue before the
    court. Puppala, 564 S.W.3d at 202.
    65
    Here, it is asserted that Dr. Morales “drain[ed] the peritoneal cavity” after Sam
    was diagnosed with a bowel perforation on the sixth day after her initial surgery.
    Yet, there is no precedent for “conservative management” of a bowel perforation
    when there is evidence of bowel contents and gas free in the peritoneal cavity.
    (Internal quotations omitted.) Based on Sam’s diagnosis of a bowel perforation on
    the sixth day after her surgery, Dr. Morales should have recommended immediate
    surgical exploration and repair of the bowel perforation. Dr. Morales did not do this,
    and thus, breached the standard of care.
    It is also asserted that Dr. Morales’s breach of the standard of care caused
    Sam’s condition to worsen and endangered her life. A bowel perforation is a surgical
    emergency that requires immediate intervention. Immediate exploration, wash out
    of the peritoneal cavity, and repair of the bowel perforation is required. Any course
    of action other than immediate exploration, wash out, and repair, causes worsening
    peritonitis, sepsis, and possible death. Dr. Morales’s failure to recommend surgical
    exploration and repair of Sam’s bowel perforation upon its diagnosis caused Sam’s
    condition to deteriorate and allowed for the continued leakage of bowel contents into
    the peritoneal cavity. Without a repair of Sam’s bowel perforation, bowel contents
    continued to flow into Sam’s peritoneal cavity “with all the bacteria, chemicals[,]
    and irritants [that] allow[] [an] infection to grow and worsen.” The bowel leakage
    caused severe damage to Sam’s physiology and permanent residual damage, and it
    66
    allowed for Sam’s peritonitis and sepsis to grow worse. And because Sam’s
    infection was allowed to grow, this led to a more complicated recovery process for
    Sam, a longer hospital stay, and long-term damage. Sam could not recover from the
    bowel perforation until it was actually repaired.
    Further, during the surgery to repair Sam’s bowel perforation, a diverting
    ileostomy had to be performed. The ileostomy was required because of the marked
    inflammatory reaction to bowel leakage for an extended length of time, i.e., four
    days after the bowel-perforation diagnosis and ten days after Sam’s initial surgery.
    Had the bowel perforation been repaired at the time it was diagnosed, a colostomy
    would have been possible.
    Sam has the burden of establishing that Dr. Paine has “knowledge, skill,
    experience, training, or education” about whether Dr. Morales’s breach of the
    standard of care—by failing to recommend immediate surgical exploration and
    repair of the bowel perforation upon its diagnosis on the sixth day after Sam’s
    surgery—caused Sam’s claimed injury, harm, or damages. See Brooks, 
    2017 WL 127867
    , at *6 (internal quotations omitted); Vora, 473 S.W.3d at 869–70; see also
    Cornejo, 446 S.W.3d at 121 (plaintiffs required to establish expert qualified on basis
    of knowledge, skill, experience, training, or education to offer opinion concerning
    causal link between alleged breaches of standard of care and injuries suffered);
    67
    Burrell, 
    230 S.W.3d at 757, 762
     (party offering witness as expert must establish
    witness is qualified).
    In his expert reports, Dr. Paine states that he is a licensed physician and is
    board certified in obstetrics and gynecology. He has been practicing in the field of
    obstetrics and gynecology for thirty-five years. Currently, he is a member of the
    teaching faculty as an associate professor in the department of obstetrics and
    gynecology at the University of Texas Health Science Center in San Antonio. In his
    position as an associate professor, he trains residents and students in obstetrics and
    gynecology,
    Dr. Paine is actively practicing medicine in the field of obstetrics and
    gynecology, and he was practicing medicine at the time Sam’s claims arose. Dr.
    Paine has extensive experience in the field of obstetrics and gynecology, and he, as
    part of his medical practice, has performed thousands of hysterectomies during his
    career. He has knowledge of the accepted standards of medical and surgical care
    required for patients needing hysterectomies. This includes knowledge of the
    standards of pre-operative, inter-operative, and post-operative care required for
    patients who have hysterectomies.
    When Dr. Paine treats patients requiring hysterectomies, he provides
    pre-operative, inter-operative, and post-operative care to his patients. Post-operative
    care includes “following [a] patient after [a] surgery is complete[] to diagnose and
    68
    treat any complications that may arise from the surgical procedure.” This case
    involves the purported failure of appellants, including Dr. Morales, to appropriately
    care for and treat Sam after a hysterectomy, and Dr. Paine is familiar with the type
    of post-operative care a patient, such as Sam, should receive and how post-operative
    complications, like those experienced by Sam, should be managed and treated.
    We conclude that Dr. Paine’s expert reports and CV demonstrate that he is
    qualified to offer an opinion on the causal link between Dr. Morales’s alleged breach
    while providing post-operative care after Sam’s hysterectomy and Sam’s injuries,
    harm, and damages. See Jassin, 
    2012 WL 5974020
    , at *5 (“We cannot say that the
    trial court abused its discretion in . . . finding that Dr. Branch is qualified to provide
    an expert report on causation for the complications that allegedly arose from Dr.
    Jassin’s post-operative care following a sinus surgery that Dr. Branch says he has
    performed approximately 200 times, along with providing the follow-up care for
    those surgeries.”); Chavez, 
    2007 WL 595134
    , at *3–4 (”It is axiomatic that a
    physician trained to perform a surgery is also trained to manage surgical
    complications.”); Keo, 
    76 S.W.3d at 733
     (holding physician who regularly
    performed surgery on head and neck was qualified to give opinion about issues
    common to all surgeries, including treatment of post-operative infections); see also
    Alvarez, 382 S.W.3d at 630 (“[A] physician needs only to show how he is qualified
    to opine on the cause of the plaintiff’s injury.”). Further, because Dr. Morales did
    69
    not dispute in the trial court that Dr. Paine is qualified to offer an opinion on the
    standard of care as to Dr. Morales, it would have been reasonable for the trial court
    to have concluded that Dr. Paine is qualified to offer an opinion on Dr. Morales’s
    failure to meet the standard of care and the resulting harm. See Healy, 
    2021 WL 603369
    , at *2 n.1; Legend Oaks-S. San Antonio, 
    2015 WL 693225
    , at *5; Jassin,
    
    2012 WL 5974020
    , at *5; Payne, 
    2011 WL 5830469
    , at *7; Arnett, 
    339 S.W.3d at 927
    –28.
    We hold that the trial court did not err in overruling Dr. Morales’s objections
    and denying Dr. Morales’s motion to dismiss Sam’s health care liability claim
    against him on the ground that Dr. Paine is not qualified to offer an opinion on
    causation related to Dr. Morales.
    We overrule the remaining portion Dr. Morales’s sole issue.23
    C.    Vicarious Liability of West Houston Radiology and Radiology Partners
    In the remaining portion of their sole issues, West Houston Radiology and
    Radiology Partners argue that the trial court erred in overruling their objections to
    Dr. Paine’s expert reports and denying their motions to dismiss Sam’s vicarious
    liability health care liability claims against them because Dr. Paine is not qualified
    to offer an opinion on causation related to Dr. Morales.
    23
    Due to our disposition, we need not address Dr. Morales’s request for attorney’s
    fees and costs. See TEX. R. APP. P. 47.1.
    70
    In her petition, Sam alleges that West Houston Radiology and Radiology
    Partners are vicariously liable for the conduct of Dr. Morales. Generally, when a
    plaintiff brings health care liability claims against more than one defendant
    physician or health care provider, the expert report must set forth the standard of
    care and breach of the standard of care as to each defendant and explain the causal
    relationship between each defendant’s individual acts or omissions and the claimed
    injury. See TEX. CIV. PRAC. & REM. CODE ANN. § 74.351(a), (r)(6); Seton Family,
    593 S.W.3d at 792; Pena, 530 S.W.3d at 175. Yet, when a plaintiff brings a health
    care liability claim based on a vicarious liability theory against a defendant health
    care provider, an expert report that adequately implicates the actions of that party’s
    agent or employee is sufficient as to the defendant health care provider. Gardner,
    274 S.W.3d at 671–72; Seton Family, 593 S.W.3d at 792; see also Owens, 478
    S.W.3d at 191 (“[W]hen a health care liability claim involves a vicarious liability
    theory, either alone or in combination with other theories, an expert report that meets
    the statutory standards as to the employee is sufficient to implicate the employer’s
    conduct under the vicarious theory.” (alteration in original) (internal quotations
    omitted)). In other words, when a health care liability claim against a defendant
    health care provider is based on vicarious liability, an expert report that meets the
    statutory standards as to an agent or employee is sufficient to implicate the health
    care provider’s conduct. Potts, 392 S.W.3d at 632; Seton Family, 593 S.W.3d at
    71
    792; see also Owens, 478 S.W.3d at 191–92 (expert report that is sufficient as to
    employee or agent, whose alleged negligent conduct vicarious liability claim was
    based, is also sufficient as to employer health care provider).
    Having held that the trial court did not err in overruling Dr. Morales’s
    objections to Dr. Paine’s expert reports and in denying Dr. Morales’s motion to
    dismiss Sam’s direct liability health care liability claim against him because Dr.
    Paine’s expert reports meet the requirements of chapter 74 related to Dr. Morales,
    we hold that Sam may also proceed on the vicarious liability health care liability
    claims against West Houston and Radiology Partners which are based on the conduct
    of Dr. Morales. See Potts, 392 S.W.3d at 632; Gardner, 274 S.W.3d at 671–72;
    Owens, 478 S.W.3d at 191–92; see also George, 
    261 S.W.3d at 295
     (“[I]f the expert
    report is sufficient as to the claims against Dr. Ward, and we have held that it
    is[,] . . . then the report is sufficient as to [the] claims against CND that are based on
    Dr. Ward’s alleged negligence.”).
    We overrule the remaining portions of West Houston Radiology’s and
    Radiology Partners’ sole issues.24
    24
    Due to our disposition, we need not address West Houston Radiology’s and
    Radiology Partners’ requests for attorney’s fees and costs. See TEX. R. APP. P. 47.1.
    72
    Conclusion
    We affirm the order of the trial court.
    Julie Countiss
    Justice
    Panel consists of Chief Justice Radack and Justices Landau and Countiss.
    73