M.G. Ex Rel. K. v. A.I. duPont Hospital for Children , 393 F. App'x 884 ( 2010 )


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  •                                                            NOT PRECEDENTIAL
    UNITED STATES COURT OF APPEALS
    FOR THE THIRD CIRCUIT
    Nos. 09-1426, 09-3598 and 09-4120
    M.G.
    by and through her parents and natural guardians,
    K. and J.G.,
    Appellant/Cross Appellee in 09-1426 and 09-3598
    v.
    A. I. DUPONT HOSPITAL FOR CHILDREN; NEMOURS FOUNDATION;
    NEMOURS CARDIAC CENTER; WILLIAM I. NORWOOD,M.D.,PH.D; NUMED,INC.;
    ALLEN J. TOWER; NEMOURS DE INSTITUTIONAL REVIEW BOARD;
    JOHN MURPHY
    Appellants/Cross Appellees in 09-4120
    Appeals from the United States District Court
    for the Eastern District of Pennsylvania
    (D.C. Civil No. 2:08-cv-00228)
    District Judge: Honorable R. Barclay Surrick
    Argued July 12, 2010
    Before: RENDELL, JORDAN and GREENAWAY, JR., Circuit Judges.
    (Filed: August 24, 2010)
    Barbara R. Axelrod, Esq. [ARGUED]
    James E. Beasley, Jr., Esq.
    Catherine A. Rothenberger, Esq.
    The Beasley Firm
    1125 Walnut Street
    Philadelphia, PA 19107
    Counsel for Appellant/Cross-Appellee
    David J. Creagan, Esq. [ARGUED]
    David E. Edwards, Esq.
    White & Williams
    1650 Market Street
    One Liberty Place, Suite 1800
    Philadelphia, PA 19103
    Counsel for Appellees/Cross-Appellants
    A.I. Dupont Hospital for Children, Nemours Foundation Inc.,
    Nemours Cardiac Center, William I. Norwood, Numed Inc.,
    Allen J. Towers, Nemours De Institutional Review Board
    and John Murphy
    R. Nicholas Gimbel, Esq.
    McCarter & English
    1735 Market Street, Suite 700
    Philadelphia, PA 19103
    Sara L. Petrosky, Esq. [ARGUED]
    Suzanne Pritchard, Esq.
    McCann & Geschke
    1800 John F. Kennedy Boulevard
    Suite 801
    Philadelphia, PA 19103
    Counsel for Appellees/Cross-Appellants A.I. Dupont Hospital for Children,
    Nemours Foundation Inc., Nemours Cardiac Center, William I. Norwood,
    Numed Inc., Allen J. Towers, Nemours De Institutional Review Board
    and John Murphy
    John M. Hudgins, IV, Esq.
    Weinberg, Wheeler, Hudgins, Gunn & Dial
    950 East Paces Ferry Road
    Atlanta, GA 20236
    Christopher E. Appel, Esq.
    Mark A. Behrens, Esq.
    Shook, Hardy & Bacon
    1155 F. Street, N.W.
    Suite 200
    2
    Washington, DC 20004
    Counsel for Amicus Appellees
    American Coatings Assn, American Ins. Assn.
    American Petro Institute, American Tort Reform Assn.,
    American Chemistry Council, Coalition for Litigation Justice, Inc.
    NFIB Small Business Legal Center, Nat'l Association of Manufacturers,
    Pharmaceutical Research and Manufacturers,
    Product Liability Advisory Council, Property Casualty Insurers Assn.
    of America, and United States Chamber of Commerce
    James M. Beck, Esq.
    Dechert
    2929 Arch Street
    18 th Floor, Cira Centre
    Philadelphia PA 19104
    Counsel for Amicus Appellee
    Product Liability Advisory Council
    OPINION OF THE COURT
    RENDELL, Circuit Judge.
    M.G. (“Plaintiff”) appeals the District Court’s grant of summary judgment on her
    claim of negligence in favor of defendants A.I. duPont Hospital for Children, the
    Nemours Foundation, the Nemours Cardiac Center, Nemours Delaware Institutional
    Review Board (collectively, the “Institutional Defendants”); Dr. William Norwood and
    Dr. John Murphy (the “Medical Defendants”); and NuMed, Inc. The Institutional
    Defendants, Medical Defendants, and NuMed (collectively, “Defendants”), cross appeal
    the District Court’s denial of summary judgement on Plaintiff’s medical monitoring
    claim. For the following reasons we will affirm the District Court’s grant of summary
    3
    judgment as to the negligence claim and reverse the District Court’s denial of summary
    judgment as to the medical monitoring claim.1
    I.
    Plaintiff was born with Down Syndrome and a combination of three heart defects
    that are uncommon but well-known congenital cardiac malformations that accompany
    Down Syndrome. As a result of her condition, Plaintiff underwent treatment at the A.I.
    duPont Hospital for Children in Wilmington, Delaware, where it was determined that a
    shunting procedure known as the Fontan procedure was the most appropriate treatment
    for Plaintiff’s condition. The Fontan procedure modifies the physiology of the heart to
    deal with the primary effect of Plaintiff’s heart defects—the inability of her heart to
    adequately pump blood to her lungs to be oxygenated. A Fontan physiology is typically
    created in a two-step process, a Hemi-Fontan followed by a surgical Fontan Completion,
    each of which traditionally requires open heart surgery. Here, the Medical Defendants
    achieved the Fontan Completion not through surgery, but through a relatively new
    catherization procedure (“Catherization Fontan”) that included the implantation of a
    Cheatham Platinum Stent (“CP Stent”). The CP Stent had not been approved by the Food
    and Drug Administration, a fact unknown to Plaintiff’s parents at the time of the
    procedure.
    1
    Initially, the parents of three children, including Plaintiff, brought a class action.
    In April 2007, the parties stipulated to convert the action from a class action to separate
    civil actions. Only Plaintiff’s case is before us.
    4
    Following implantation of the CP Stent and the creation of the Fontan physiology,
    Plaintiff began to develop protein losing enteropathy (“PLE”) and plastic bronchitis
    (“PB”). PLE and PB are rare and life-threatening conditions, but are known
    complications of a Fontan physiology. Although initially under the care of the Medical
    and Institutional Defendants for treatment of her PLE and PB, Plaintiff’s parents became
    dissatisfied with the care Plaintiff was receiving, and transferred her to the Children’s
    Hospital of Pennsylvania (“CHOP”). While Plaintiff’s PLE dissipated, her PB remained
    persistent, leading Plaintiff’s physicians at CHOP to conclude that the best course of
    treatment would be to fenestrate, or put a hole in, the CP Stent. Eventually, Plaintiff’s PB
    necessitated multiple fenestration procedures and the implantation of two additional
    stents. Plaintiff’s physiological condition, underlying developmental issues, and
    continuing struggle with PB, necessitate ongoing medical care and surveillance.
    Plaintiff’s original complaint contained six distinct counts: (I) Negligence: Lack of
    Informed Consent, (II) Fraud and Intentional Misrepresentation, (III) Assault and Battery,
    (IV) Strict Products Liability, (V) Breach of Express and Implied Warranties, and (VI)
    Medical Monitoring. Plaintiff’s complaint asserts that her “exposure to the NuMED CP
    Stent and Implantation Procedure . . . caused and will continue to cause [her] to suffer
    physical pain, mental anguish, medical and other related personal injuries and/or
    expenses.” App. 149. Specifically, Plaintiff contended that “as a direct result of the stent
    placement and its resulting physiologic effects” she developed “at least two serious
    5
    medical conditions . . . Protein Losing Enteropathy (PLE) and plastic bronchitis [PB].”
    App. 158.
    II.
    On February 6, 2009, the District Court issued two memoranda and accompanying
    orders, one resolving the claims against the Medical and Institutional Defendants
    (hereinafter, “First Memorandum”), the other resolving the claims against NuMED, Inc.
    and its CEO Allen Tower (hereinafter, “Second Memorandum”).
    A. First Memorandum
    In the First Memorandum, the District Court applied Delaware law 2 and noted that
    the Delaware Health Care Malpractice Insurance and Litigation Act (the “Health Care
    Act”), 18 Del. C. §§ 6801 et seq., governed the claims at issue, since it defines medical
    negligence in an all-encompassing manner as “any tort or breach of contract based on
    health care or professional services rendered, or which should have been rendered, by a
    health care provider to a patient.” App. 23 (citing 18 Del. C. § 6801(7)). The District
    Court continued:
    A cornerstone of the Health Care Act is the requirement that
    plaintiffs asserting claims against healthcare providers must
    2
    The District Court conducted a choice of law analysis that is uncontested on
    appeal. The District Court found Delaware law applicable because, although Plaintiff is
    from New Jersey and Pennsylvania is the forum state, the complained-of conduct
    occurred in Delaware, Plaintiff intentionally traveled to Delaware to receive treatment,
    and Delaware has an interest in regulating activity within its borders and maintaining the
    predictability of its health care regulations.
    6
    support those claims with expert testimony regarding the
    healthcare provider’s deviation from the standard of care and
    the causal connection between the healthcare provider’s
    deviation and plaintiff’s injury. See 18 Del. C. § 6853(e)
    (“No liability shall be based upon asserted negligence unless
    expert medical testimony is presented as to the alleged
    deviation from the applicable standard of care in the specific
    circumstances of the case and as to the causation of the
    alleged personal injury or death . . . .”). Indeed, the testimony
    of a competent medical expert is an essential element of any
    medical negligence claim, including informed consent claims,
    in Delaware.
    App. 24. The District Court found that Plaintiff’s medical negligence, lack of informed
    consent, and fraud claims all failed because Plaintiff did not satisfy her burden of
    producing medical expert testimony that established causation.3 Accordingly, the District
    Court granted the motions for summary judgment with respect to these claims.
    The District Court allowed Plaintiff’s “Medical Monitoring” claim to proceed,
    denying the motion for summary judgment with respect to this count. The District Court
    acknowledged that, although Pennsylvania and New Jersey recognize medical monitoring
    as a cause of action, in Delaware, “it is not clear whether medical monitoring is an
    independent tort or whether medical monitoring is simply a remedy, as it is in many other
    jurisdictions.” App. 22. The District Court noted that the “Delaware Supreme Court has
    3
    The District Court had previously dismissed Plaintiff’s assault and battery claim,
    strict liability claim, and breach of express and implied warranties claim against Dr.
    Norwood and Dr. Murphy, and extended that conclusion to the Institutional Defendants in
    this decision. Plaintiff does not address this issue or these claims in her opening brief,
    and so these claims have been waived.
    7
    acknowledged medical monitoring but has never explicitly recognized medical
    monitoring as a legally cognizable cause of action,” and that, as a result, the District
    Court sitting in diversity “must predict how the state’s supreme court would resolve the
    issue, giving consideration to the decisions of intermediate state courts.” App. 39. The
    District Court then predicted that the Delaware Supreme Court would permit a claim for
    medical monitoring on this record. The District Court suggested that because Defendants
    caused Plaintiff to come into contact with an adulterated medical device and this contact
    (and the continued presence of the device in Plaintiff’s body) will require Plaintiff to
    receive continued medical monitoring specifically with respect to the effects of the CP
    Stent, Plaintiff might be able to sustain a medical monitoring claim.
    B. Second Memorandum
    In the Second Memorandum, which dealt with the claims against NuMED, Inc.
    (the manufacturer of the CP Stent), and Allen Tower (the sole shareholder and CEO of
    NuMED, Inc.), the District Court again found that Delaware law applied with respect to
    the various tort claims in Counts I through V, and that, again, Plaintiff’s claims were
    blocked due to her inability to demonstrate causation.4 Plaintiff does not argue for
    reversal of summary judgment on any of these five counts with respect to either NuMED
    or Tower, including the lack of informed consent claim, and so these issues have been
    4
    The District Court dismissed Plaintiff’s strict liability claim on the grounds that
    Delaware law bars strict product liability claims, and the breach of express and implied
    warranties claims failed for a variety of non-causation related reasons.
    8
    waived.
    The District Court denied NuMED’s motion for summary judgment as to Count VI
    (the medical monitoring claim) with respect to NuMED, for the same reasons that it
    denied the motion for summary judgment in the other decision. The District Court
    granted the motion for summary judgment with respect to Allen Tower, on the grounds
    that, applying New York law (through a new choice of law analysis), Plaintiff failed to
    prove “complete domination” and to pierce the corporate veil. Again, Plaintiff does not
    argue for reversal of the entry of judgment in favor of Allen Tower in her opening brief,
    and so that issue is waived.
    C. Remaining Issues on Appeal
    Although Plaintiff’s Notice of Appeal indicated that she was appealing the
    dismissal of Counts I through V, the only one of these five counts she addressed in her
    Opening Brief is her negligence-based lack of informed consent claim set forth in Count I
    of her Complaint against the Medical Defendants and the Institutional Defendants.
    Accordingly, the other issues have been waived. See Tracinda Corp. v. DaimlerChrysler
    AG, 
    502 F.3d 212
    , 236 n.18 (3d Cir. 2007) (“[I]t is well-settled in this court that an
    appellant’s failure to identify or argue an issue in his opening brief constitutes waiver of
    that issue on appeal.” (internal quotation marks and citations omitted)); United States v.
    Pelullo, 
    399 F.3d 197
    , 201 n.2 (3d Cir. 2005) (“Where, as here, an appellant fails to raise
    an issue in an appellate brief, even if it was listed in the Notice of Appeal, it is deemed
    9
    waived.”), cert denied, 
    546 U.S. 1137
     (2006).
    NuMED, the Medical Defendants, and the Institutional Defendants all cross appeal
    the denial of summary judgment on the medical monitoring claim.
    III.
    The District Court had jurisdiction pursuant to 
    28 U.S.C. § 1332
    . We have
    jurisdiction over Plaintiff’s appeal pursuant to 
    28 U.S.C. § 1291
    , and over the
    Defendants’ cross-appeal pursuant to 
    28 U.S.C. § 1292
    (b). We exercise plenary review
    over a grant or denial of summary judgement and apply the same standard used by the
    District Court. Giles v. Kearney, 
    571 F.3d 318
    , 322 (3d Cir. 2009). A grant of summary
    judgment “should be rendered if the pleadings, the discovery and disclosure materials on
    file, and any affidavits show that there is no genuine issue as to any material fact and that
    the movant is entitled to judgment as a matter of law.” Fed. R. Civ. P. 56(c). We view
    the facts in the light most favorable to the nonmoving party, drawing all reasonable
    inferences in the non-movant’s favor. However, “[t]he mere existence of a scintilla of
    evidence in support of the plaintiff’s position will be insufficient; there must be evidence
    on which the jury could reasonablely find for the plaintiff.” Anderson v. Liberty Lobby,
    Inc., 
    477 U.S. 242
    , 252 (1986).
    A. Negligence: Lack of Informed Consent
    As the District Court noted, medical negligence actions brought under Delaware
    law are governed by the Health Care Act. The Health Care Act defines medical
    10
    negligence as “any tort or breach of contract based on health care or professional services
    rendered, or which should have been rendered, by a health care provider to a patient.” 18
    Del. C. § 6801(7). Under section 6853, titled “Affidavit of Merit, expert medical
    testimony,” the Health Care Act explicitly states:
    No liability shall be based upon asserted negligence unless
    expert medical testimony is presented as to the alleged
    deviation from the applicable standard of care in the specific
    circumstances of the case and as to the causation of the
    alleged personal injury or death . . .
    18 Del. C. § 6853(e). Thus, under the Health Care Act, a claimant must show, by expert
    medical testimony, (1) the applicable standard of care, (2) the deviation from that
    standard, and (3) that this deviation caused the alleged personal injury or death. Delaware
    law requires that causation meet the “but for” causation standard, see Edwards v. Family
    Practice Associates, Inc., 
    798 A.2d 1059
    , 1066 (Del. Super. Ct. 2002) (“Plaintiffs must
    show such negligence was a proximate cause of injury; that is, but for the negligence, the
    injury would not have happened.”), which means that the claimant must show that the
    harm would not have occurred if not for the defendant’s deviation from the standard of
    care. See Burkhart v. Davies, 
    602 A.2d 56
    , 59 (Del. 1991).
    The Informed Consent Statute of the Health Care Act, 18 Del. C. § 6852, is
    contained within, and governed by, the “Medical Negligence” chapter of the Delaware
    Code. See Brzoska v. Olson, 
    668 A.2d 1355
    , 1366 (Del. 1995) (“If a health care provider
    violates his or her duty of care in obtaining the consent of the patient by failing to disclose
    11
    all relevant information (risks) that a reasonable person would deem significant in making
    a decision to have the procedure, the action should be pleaded in negligence—not
    battery.”). The Health Care Act defines informed consent as:
    the consent of a patient to the performance of health care
    services by a health care provider given after the health care
    provider has informed the patient, to an extent reasonably
    comprehensible to general lay understanding, of the nature of
    the proposed procedure or treatment and of the risks and
    alternatives to treatment or diagnosis which a reasonable
    patient would consider material to the decision whether or not
    to undergo the treatment or diagnosis.
    18 Del. C. § 6801(6). Consequently, as with other claims under the Health Care Act, to
    succeed on a lack of informed consent claim such as this one, a plaintiff must show that
    by failing to obtain informed consent, a defendant fell below the applicable standard of
    care. In particular, the claimant must prove “by a preponderance of evidence that the
    health care provider did not supply information regarding such treatment, procedure or
    surgery to the extent customarily given to patients, or other persons authorized to give
    consent for patients by other licensed health care providers in the same or similar field of
    medicine as the defendant.” 18 Del. C. § 6852(a). The plaintiff must also show that the
    deviation from the standard of care caused the harm, supporting this evidentiary burden
    with the presentation of expert testimony. This requirement has been explicitly applied to
    lack of informed consent claims. See Valentine v. Mark, 
    2004 WL 2419131
    , at *3 (Del.
    Super. Ct. Oct. 20, 2004) (“More importantly, an informed consent action still requires
    expert testimony as to causation. . . . Section 6853 makes it abundantly clear that . . . only
    12
    expert testimony can prove the essential element of causation. Section 6852 [the
    informed consent provision] cannot therefore be used as a backdoor around the
    requirement that causation in medical negligence cases be supported by expert
    testimony.”). Accordingly, in order to prevail on a cause of action for informed consent,
    Delaware law requires a claimant to show not just a deviation from the standard of care,
    but to show by expert testimony that the deviation complained of is the “but for” cause of
    a legally cognizable harm.
    We agree with the District Court that Plaintiff has not presented the necessary
    expert testimony to demonstrate that the deviation from the standard of care by the
    Defendants was the “but for” cause of the harm she suffered. Plaintiff has demonstrated
    that following the Catherization Fontan and the implantation of the CP Stent, she suffered
    from PLE and continues to struggle with PB. However, the complications suffered by
    Plaintiff are known complications of the Fontan physiology, and Plaintiff did not produce
    expert medical testimony showing that these harms were caused by the Defendants’
    failure to inform as to the use of the CP Stent or by the Catherization Fontan. The only
    medical expert Plaintiff produced, Dr. Paul Grossfeld, testified that PLE and PB are both
    known complications of the Fontan physiology that can and do develop even in the
    absence of negligence by the treating physician. App. 242-44. In response to the direct
    question of whether Plaintiff’s complications were due to the CP stent or the use of the
    catherization procedure, Dr. Grossfeld replied “I don’t know,” and “I don’t know. I think
    13
    that’s unlikely,” respectively. App. 243-44.
    The District Court’s conclusion seems inescapable. Plaintiff did not meet her
    burden with respect to causation, and summary judgment was appropriately granted with
    respect to this claim.5
    B. Medical Monitoring
    Plaintiff’s original sixth cause of action was a claim entitled “Medical
    Monitoring.” She contended that “[a]s a direct result of defendants’ acts, omissions, and
    conduct, plaintiffs . . . who have received NuMED CP stent have been exposed to a
    5
    Plaintiff urges on appeal that her harm is not limited to PLE and PB, but also
    includes the harm of being required “to undergo multiple procedures to fenestrate [the CP
    Stent],” Appellant’s Br. 48, and to undergo “additional procedures to expand the stent as
    she grows” in the future. Appellant’s Resp. Br. 11. Plaintiff contends that her parents
    would not have consented to the CP Stent implantation if they had been given all of the
    information. Accordingly, Plaintiff urges that the multiple fenestration procedures she
    had to undergo at CHOP, as a result of the CP Stent, and the created need to dilate or
    expand the stent in the future, represent harm that but for Defendants’ actions (in
    proceeding without informed consent) she would not have to endure.
    In response, Defendants urge that the treatment Plaintiff underwent at CHOP—the
    fenestration procedures—are a result of known complications of Fontan physiology that
    Plaintiff would have had to undergo regardless of whether the Fontan was completed by
    surgery or catheter. Defendants’ position is that if surgical completion had taken place,
    Plaintiff would have had a Gore-Tex tube implanted, which would have required
    Plaintiff’s CHOP doctors to punch a hole or fenestrate the same Gore-Tex material that
    was used for the CP Stent.
    We note, first, that Plaintiff did not specifically identify the need to undergo
    multiple fenestration procedures as a harm in her initial complaint. Even leaving this
    concern aside, Plaintiff’s argument is unavailing as she does not identify any expert
    testimony in the record that establishes that Defendants’ actions were a “but for” cause of
    the need for multiple fenestration procedures.
    14
    hazardous procedure and product, and suffered a significantly increased risk of the side
    effects caused by this device. This increased risk makes periodic diagnostic and medical
    examinations reasonable and necessary.” App. 178. The complaint continued:
    “Medical monitoring is necessary because: (a) The NuMED
    CP Stent is a proven and admittedly hazardous product; (b)
    Plaintiffs’ exposure to the hazardous product and procedure
    was proximately caused by defendants’ tortious conduct; (c)
    Medical monitoring will detect injuries from the NuMED CP
    Stent and its implantation; (d) This monitoring will be
    different from what normally is recommended to individuals
    who did not receive a NuMED CP Stent; and (e) Medical
    monitoring will assist in preventing further injuries from or as
    a consequence of implantation of the NuMED CP Stent.”
    App. 178-79. Plaintiff posed the medical monitoring claim as an independent cause of
    action, not merely as a remedy for negligence or some other tortious conduct, despite
    condition (b), which refers to “defendants’ tortious conduct.”
    As noted above, the District Court allowed Plaintiff’s “Medical Monitoring” claim
    to proceed, denying the motion for summary judgment with respect to that count. The
    District Court acknowledged that in Delaware, “it is not clear whether medical
    monitoring is an independent tort or whether medical monitoring is simply a remedy, as it
    is in many other jurisdictions.” App. 22. The District Court noted that the “Delaware
    Supreme Court has acknowledged medical monitoring but has never explicitly recognized
    medical monitoring as a legally cognizable cause of action,” and that, as a result, the
    District Court sitting in diversity “must predict how the state’s supreme court would
    resolve the issue, giving consideration to the decisions of intermediate state courts.” App.
    15
    39. The District Court then predicted that the Delaware Supreme Court would permit a
    claim for medical monitoring on this record.
    In an August 28, 2009 Order, the District Court certified the following three issues
    for immediate interlocutory appeal to this Court:
    1) Would the Delaware Supreme Court recognize a medical monitoring cause of
    action if presented with the record in this case?
    2) If the appellate court answers the first certified question in the affirmative,
    would Plaintiff be able to state a claim for medical monitoring in Delaware?
    3) If the appellate court answers the first two certified questions in the affirmative,
    would Plaintiff meet her summary judgment burden of establishing a genuine issue
    of fact for trial regarding her medical monitoring claim?
    App. 99-100.
    Because we find that Plaintiff is unable to establish the elements necessary to state
    a claim for medical monitoring, we decline to reach the questions posed by the District
    Court, and will, for the following reasons, reverse the denial of summary judgement.
    Defendants argue that the District Court erred in predicting that the Delaware
    Supreme Court would adopt a stand-alone cause of action for medical monitoring. In
    particular, Defendants contend that the District Court erred in extending Delaware law
    beyond the bounds of the recognized medical monitoring claim in which a plaintiff
    alleges long-term exposure to a proven toxic substance with known tendencies to produce
    serious future medical injuries. We agree.
    Neither the District Court nor Plaintiff points to any case in this Circuit, let alone
    16
    in Delaware, in which a free-standing medical monitoring claim has been allowed to
    proceed although the plaintiff has not demonstrated significant exposure to a toxic
    (poisonous) or proven hazardous substance.6 Medical monitoring was addressed by this
    Court in litigation surrounding the plaintiffs’ exposure of polychlorinated biphenyls
    (PCBs) from working in or living adjacent to a rail-yard. In re Paoli Railroad Yard PCB
    Litigation, 
    916 F.2d 829
     (3d Cir. 1990) (Paoli I); 
    35 F.3d 717
     (3d Cir. 1994) (Paoli II);
    
    113 F.3d 444
     (3d Cir. 1997) (Paoli III). In Paoli II, this Court found that medical
    monitoring is a viable claim under Pennsylvania law and re-articulated the following test
    from Paoli I, concluding that these elements are necessary to make out a medical
    monitoring claim in Pennsylvania:
    1. Plaintiff was significantly exposed to a proven hazardous
    substance through the negligent actions of the defendant.
    2. As a proximate result of exposure, plaintiff suffers a
    significantly increased risk of contracting a serious latent
    disease.
    3. That increased risk makes periodic diagnostic medical
    examinations reasonably necessary.
    6
    The Delaware Supreme Court has not recognized a cause of action for medical
    monitoring, a fact the District Court acknowledged. The District Court notes that courts
    in Delaware have “acknowledged” medical monitoring tacitly without “expressly
    addressing its viability as a cause of action.” App. 39 n.8 (citing Alderman v. Clean
    Earth, Inc., No. 04C-06-181, 
    2007 Del. Super. LEXIS 191
    , at *8 (Del. Super. Ct. June 26,
    2007); Brzoska v. Olsen, No. 92C-06-142, 
    1994 Del. Super. LEXIS 230
    , at *9 (Del.
    Super. Ct. May 2, 1994), aff’d in part, rev’d on other grounds, 
    668 A.2d 1355
     (Del.
    1995); In re Asbestos Litig., No. 87C-09-24, 
    11994 Del. Super. LEXIS 685
    , at *5 (Del.
    Super. Ct. Aug. 5, 1994)).
    17
    4. Monitoring and testing procedures exist which make the
    early detection and treatment of the disease possible and
    beneficial.
    
    35 F.3d at 787
    . Plaintiff identifies a single case, Sutton v. St. Jude Med, S.C., Inc., 
    419 F.3d 568
     (6th Cir. 2005), in which a court suggested that recovery of future medical costs
    might be appropriate outside of the “toxic tort” context. In Sutton, the Sixth Circuit found
    that Sutton had standing to seek medical testing and monitoring allegedly made necessary
    by the implantation of a medical device that had not yet malfunctioned or caused Sutton
    any physical injuries. 
    Id. at 575
    . The Sutton Court only discussed basic standing
    doctrine; it did not find that Sutton could recover for medical monitoring, nor did it find
    that medical monitoring could be applied as a free-standing tort claim in a non-toxic tort
    scenario.
    Thus, the District Court’s prediction that the Delaware Supreme Court would
    permit a claim for medical monitoring on this record requires several “leaps” from the
    current state of the law, generally, let alone Delaware law. Here, there is no toxic or
    hazardous substance, as such. While unapproved devices are termed “adulterated”, they
    are not necessarily harmful, and certainly not toxic. Moreover, the risk here is not a risk
    of “contracting a serious latent disease.” Rather, it is a risk of the need for further care.
    Further examinations are not to “monitor” the risk of disease, but to perform routine
    oversight.
    In reaching this conclusion, we decline to predict whether the Delaware Supreme
    18
    Court might acknowledge some variant of a medical monitoring claim. Even if the
    Delaware Supreme Court would recognize a “standard” medical monitoring claim, such
    as the one identified in Paoli, which requires a plaintiff to demonstrate that a defendant’s
    negligence caused the plaintiff to be exposed to a proven hazardous substance that
    resulted in a significantly increased risk of contracting a serious latent disease, the
    plaintiff here cannot demonstrate that she has been exposed to a proven hazardous
    substance, nor can she prove that such exposure resulted in a significantly increased risk
    of contracting a serious latent disease.7 Accordingly, we find that Plaintiff is unable to
    establish the elements necessary to make out a claim for medical monitoring. For the
    foregoing reasons, we reverse the order of the District Court denying Defendants’
    motions for summary judgment.
    IV.
    The District Court is hereby affirmed in part and reversed in part.
    7
    We also note the well-established principle that a federal court sitting in diversity,
    when called upon to make a prediction of state law, should act conservatively. See, e.g.,
    Day & Zimmerman, Inc. v. Challoner, 
    423 U.S. 3
    , 4 (1975) (per curiam) (“A federal court
    in a diversity case is not free to engraft onto those state rules exceptions or modifications
    which may commend themselves to the federal court, but which have not commended
    themselves to the State in which the federal court sits.”); Travelers Indemnity Co. v.
    Dammann & Co, Inc., 
    594 F.3d 238
    , 253 (3rd Cir. 2010) (“[I]n reaching our conclusion
    we have exercised restraint in accordance with the well-established principle that where
    ‘two competing yet sensible interpretations’ of state law exist, ‘we should opt for the
    interpretation that restricts liability, rather than expands it, until the Supreme Court of
    [that state] decides differently’.” (internal citations omitted)).
    19