Richardson v. Christiana Care Health Services, Inc. ( 2021 )


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  • IN THE SUPERIOR COURT OF THE STATE OF DELAWARE
    TAMEKA RICHARDSON, as NEXT _ )
    FRIEND OF N.D., a minor, )
    )
    Plaintiff, )
    )
    V. ) C.A. No. N18C-10-026 JRJ
    )
    CHRISTIANA CARE HEALTH )
    SERVICES, INC., )
    )
    Defendant. )
    MEMORANDUM OPINION
    Date Submitted: March 25, 2021
    Date Decided: June 21, 2021
    Upon Plaintiff's Motion in Limine to Exclude Causation Testimony from Dr. Neil
    Silverman and Dr. Harold Wiesenfeld — GRANTED
    Upon Plaintiff's Motion in Limine to Limit Cumulative Expert Testimony — DENIED
    Upon Plaintiff's Motion in Limine to Limit Neil Silverman M.D.’s Testimony
    Regarding Standard of Care - DENIED
    Upon Plaintiff's Motion in Limine to Limit Dr. Coleen Cunningham’s Testimony
    Regarding the Standard of Care - MOOT
    Upon Plaintiffs Omnibus Motion in Limine- GRANTED IN PART AND DENIED
    IN PART
    Timothy E. Lengkeek, Esquire, Young Conaway Stargatt & Taylor, LLP, Rodney
    Square, 1000 North King Street, Wilmington, Delaware 19801, Attorney for
    Plaintiff.
    Joshua H. Meyeroff, Esquire, Morris James LLP, 500 Delaware Avenue, Suite 1500,
    Wilmington, Delaware 19801, Attorney for Defendant.
    Jurden, P.J.
    I. INTRODUCTION
    Serving as next friend of her grandson (“N.D.”), Plaintiff Tameka Richardson
    filed this medical negligence action against Defendant Christiana Care Health
    Services (“CCHS”). N.D.’s mother was infected with HIV while she was pregnant
    with N.D., and the virus was transmitted to N.D. Plaintiff alleges that this
    transmission occurred because CCHS—by and through its obstetric agents and
    employees—negligently failed to retest N.D.’s mother for HIV at 36 weeks, so it did
    not know that N.D.’s mother had been infected with the virus during pregnancy.
    Plaintiff has filed five Motions in Limine asking the Court to make various
    evidentiary rulings ahead of trial;' the Court addresses these Motions below. CCHS
    has filed two Motions of its own,” which the Court will address separately.
    II. DISCUSSION
    A.  Plaintiff’s Motion in Limine to Exclude Causation Testimony from Dr.
    Neil Silverman and Dr. Harold Wiesenfeld’
    Plaintiff asks the Court to exclude Dr. Silverman’s and Dr. Wiesenfeld’s
    testimony that N.D. was infected in utero rather than during the intrapartum period
    (i.e., during delivery).* In support of this request, Plaintiff first points to testimony
    1 Trans. ID 65946740; Trans. ID 65946477; Trans. ID 65946338; Trans. ID 65946141; Trans. ID
    65946227.
    2 Trans. ID 65863005; Trans. ID 65863041.
    3 Trans. ID 65946740.
    4 Id. at 42.
    provided by CCHS’s own pediatric infectious disease expert, Coleen Cunningham,
    M.D. Dr. Cunningham testified that (1) it is impossible to know whether N.D. was
    infected in utero or during delivery, and (2) it is unknown whether the timing of a
    mother’s HIV infection (i.e., before or during pregnancy) affects the timing of HIV
    transmission to the baby (i.e., in utero or during delivery).°
    Plaintiff argues that Dr. Silverman’s and Dr. Wiesenfeld’s testimony
    contradicts Dr. Cunningham’s testimony—and does so without an adequate basis in
    the literature.’ During his deposition, Dr. Silverman testified that the fact that N.D.’s
    mother had been infected with HIV during pregnancy made it statistically more
    likely that N.D. had been infected in utero rather than during delivery.2 Dr.
    Silverman stated that he based that opinion on data from the CDC and NIH and
    pointed to the textbook Pediatric Infectious Disease for additional support.? After
    Dr. Silverman’s deposition, CCHS’s counsel produced six documents, which,
    according to Plaintiff, “do not support Dr. Silverman’s testimony that it is
    statistically more likely N.D. was infected in utero because his mother’s infection
    occurred during pregnancy.”'° Next, Dr. Wiesenfeld testified as follows:
    > Td. at J 3.
    ° Id.
    TTd. at 94.
    8 Td.
    ? Td.
    10 Td. at ¢ 5 (emphasis omitted).
    Acute HIV infection in pregnancy is a very — is a time of extremely
    high risk of transmitting the virus to the baby, a far greater chance than
    if somebody was infected before the pregnancy and came into
    pregnancy with an HIV-positive diagnosis.'!
    Plaintiff contends that this was merely Dr. Wiesenfeld’s opinion; Dr. Wiesenfeld has
    never had a patient become infected with HIV while pregnant.’? And in support of
    his opinion, Plaintiff continues, Dr. Wiesenfeld cited a single study, which, in
    Plaintiffs view, “in no way supports Dr. Wiesenfeld’s opinion.” In sum, Plaintiff
    argues that Dr. Silverman’s and Dr. Wiesenfeld’s causation testimony amounts to
    ipse dixit, contradicts Dr. Cunningham’s testimony, and is not supported by the
    literature.'°
    In response, CCHS first argues that Dr. Silverman and Dr. Wiesenfeld are
    qualified to give opinion testimony under the Daubert standard and Delaware Rule
    of Evidence (“D.R.E.”) 702.'* Because medical testimony need not be produced for
    a qualified expert to give opinion testimony, CCHS maintains, Plaintiff's
    contentions about the underlying literature are misplaced.'> Next, CCHS argues that
    Dr. Silverman and Dr. Wiesenfeld should not be prohibited from testifying simply
    N 7d. at 47.
    2 Td.
    '3 Td. at $4] 6, 8.
    14 See Trans. ID 65976880, at Jf] 2—3 (first citing Bowen v. E.J. DuPont de Nemours & Co., Inc.,
    
    906 A.2d 787
    , 795 (Del. 2006); and then citing D.R.E. 702).
    5 Tq. at J 4 (citing Wong v. Broughton, 
    204 A.3d 105
    , 109 (Del. 2019)); 
    id.
     at 4 n.8 (citing
    Norman v. All About Women, P.A., 
    193 A.3d 726
    , 731 (Del. 2018)) (“Regardless, medical literature
    is not necessary for admissibility of their expert opinions.”).
    4
    because their testimony contradicts Dr. Cunningham’s.'° Rather, all three experts
    should be allowed to testify, leaving it to the jury to assign weight to each expert’s
    testimony.'”
    The Court will exclude Dr. Silverman’s and Dr. Wiesenfeld’s testimony as to
    the issue of causation. The specific causation testimony that Plaintiff takes issue
    with is the doctors’ shared opinion that when a mother is infected with HIV during
    pregnancy, the risk that her baby will be infected with HIV in utero is greater than
    50%.'8 The Supreme Court of Delaware has decided that such statistical claims
    cannot be used to negate proximate cause in a particular case.’
    In addition, Dr. Silverman and Dr. Wiesenfeld expressly stated that their
    statistical claims were based on the literature—not their personal experience.”” The
    16 See 
    id.
     at [4] 5-6.
    "7 Td. at J 6.
    18 See Dep. of Dr. Silverman, Trans. ID 65946740 (Ex. A), at 48:7—9 (emphasis added) (“[A]cute,
    primary maternal infection during a pregnancy, especially the third trimester, puts the risk of fetal
    infection at at least 50 to 75 percent.”); Dep. of Dr. Wiesenfeld, Trans. ID 65946740 (Ex. D), at
    45:3-9 (emphasis added) (“But looking at perinatally-infected individuals, of babies, when you
    look back at them, a high proportion of them, perhaps more than half, have been deemed to be
    acquired in utero, that is before the intrapartum process”).
    19 Pyyett v. Lewis, 
    2011 WL 882102
    , at *2 (Del. Super. Ct. Mar. 10, 2011) (citing and quoting
    Timblin v. Kent General Hospital, 
    640 A.2d 1021
     1024-26 (Del. 1994)). At oral argument,
    Plaintiff clarified that this is the precise testimony that she wishes to exclude. Transcript of March
    25, 2021 Hearing, at 13:15—22 (Trans. ID 66654931) (Mr. Lengkeek: “[T]his testimony|,] the 50
    to 75 percent of moms pass it on in utero when they get HIV[,] is not truthful. . . . But the Court,
    as the gatekeeper, should decide under Daubert[,] under its prior decisions[,] and under Delaware
    Rule of 102 that this testimony not be permitted to be given to the jury.”).
    20 Dep. of Dr. Silverman, Trans. ID 65946740 (Ex. A), at 45:2-13 (“Q. All night. Are you going
    to offer an opinion that the fetus was infected prior to 36 weeks? A. Statistically, it’s more likely.
    Yes, it was already infected. Q. What do you base that on? A. So IJ base that on fairly well-
    established data cited by the CDC and the NIH on their publicly available websites that acute HIV
    5
    literature produced, however, does not contain the 50-75% statistic that Dr.
    Silverman cites—a point that CCHS’s counsel has conceded.*’ And the study that
    Dr. Wiesenfeld relied on for his opinion appears not to support the idea that a
    mother’s infection with HIV during pregnancy can show when her baby was
    infected.2* In fact, the researchers involved in the study could not determine when
    mother-to-baby transmission occurred in most cases; this conclusion supports Dr.
    Cunningham’s position.”
    infection during pregnancy, especially in the third trimester, increases the risk of fetal transmission
    by a factor of two or three fold. That's based on numerous pre anti-retroviral therapy studies done
    across the globe.”); Dep. of Dr. Wiesenfeld, Trans. ID 65946740 (Ex. D), at 58:1-11 (“Q. Are you
    relying on any textbooks or any literature to support this specific opinion? A. Again, I mentioned
    to you -- again, from what I recall from reading about this topic in the past, that looking at those
    babies who -- in the UK who were perinatally infected with HIV in the more modern era, the
    majority of them were infected in utero, that is prior to the onset of labor.”).
    21 See Transcript of March 25, 2021 Hearing, at 23:1—-8 (The Court: “Before you go on. Before
    you go on. Where in the literature, where do you cite me to that has the 50 to 75 percent statistic
    that Dr. Silverman tallied?” Mr. Meyeroff: “So they did not cite -- I will be honest, Your Honor,
    I read the literature as well..... I didn’t see that specific statistic.”); see also 
    id.
     at 6:23—7:6 (Mr.
    Lengkeek: “I said, okay, I need to see those studies. Mr. Meyeroff provided me with those studies.
    _.. [have reviewed all of those studies. None of those studies, none of them state[s] that the risk
    of in utero transmission is 50 to 75 percent when mom gets HIV while she is pregnant.”).
    22 Transcript of March 25, 2021 Hearing, at 10:19-11:3 (Mr. Lengkeek: “So there [are] 67 babies
    born [out of the 100 babies examined] with unknown HIV status. They found out down the road,
    just like they found out in this case, down the road, that the baby got HIV from his mother. In that
    case the timing of HIV acquisition could not be estimated for nearly 90 percent of those 67
    children. So this article does not help Dr. Wiesenfeld. In fact, it helps us.”). CCHS’s counsel did
    not rebut this interpretation of the study.
    23 Td.
    Finally, it is true, as CCHS argues, that supporting literature is not a
    prerequisite under Daubert.“ Nor is supporting literature listed among the reliability
    factors that the Supreme Court of Delaware identified in response to Daubert:
    (1) the witness is qualified as an expert by knowledge, skill, experience,
    training or education; (2) the evidence is relevant; (3) the expert’s
    opinion is based upon information reasonably relied upon by experts in
    the particular field; (4) the expert will assist the trier of fact to
    understand the evidence or to determine a fact in issue; and (5) the
    expert testimony will not create unfair prejudice or confuse or mislead
    the jury.”°
    The doctors’ statistical opinions do, however, run afoul of factor (5) above because
    they risk misleading the jury; they invite the jury to infer that any alleged negligence
    could not be the proximate cause of the injury in this case because that injury was
    statistically likely to happen anyway.”° And even if the experts’ opinions were to
    check all of Daubert’s boxes, that would not necessarily guarantee their
    admissibility.2” The trial court must use its “broad latitude” to determine whether
    “Daubert’s specific factors are, or are not, reasonable measures of reliability in a
    24 See Trans. ID 65976880, at J 6.
    25 Norman v. All About Women, P.A., 
    193 A.3d 726
    , 730-31 (Del. 2018).
    26 Timblin v. Kent General Hospital, 
    640 A.2d 1021
     1024-26 (Del. 1994); cf Crowhorn v. Boyle,
    
    793 A.2d 422
    , 433 (Del. Super. Ct. 2002) (noting that the doctor’s general “proposition that
    seventy-five percent of chronic back pain sufferers ‘get better’ in six weeks... would have no
    application to” the plaintiff because the doctor “offer[ed] no basis for placing [the plaintiff] among
    the seventy-five percent.”)
    27 Tumlinson v. Advanced Micro Devices, Inc., 
    81 A.3d 1264
    , 1269 (Del. 2013) (quoting Daubert
    y. Merrell Dow Pharms., Inc., 
    509 U.S. 579
    , 593 (1993)) (“The United States Supreme Court has
    emphasized that those [Daubert] factors are not a “definitive checklist.””).
    7
    particular case.”*® Here, the Court finds that Dr. Silverman’s and Dr. Wiesenfeld’s
    causation testimony is unreliable due to the absence of supporting literature and the
    existence of contradictory literature (and testimony).”? Accordingly, Plaintiffs
    Motion in Limine to Exclude Causation Testimony from Dr. Neil Silverman and Dr.
    Harold Wiesenfeld is GRANTED.
    B. _ Plaintiff’s Motion in Limine to Limit Cumulative Expert Testimony”
    In this Motion, Plaintiff asks the Court to prevent CCHS “from presenting two
    experts who will offer identical opinions.”*’ Those experts are Dr. Silverman and
    Dr. Wiesenfeld, both of whom are obstetricians.*” Plaintiff emphasizes the Court’s
    discretion to limit the number of witnesses that a party may offer to support the same
    idea? In addition, Plaintiff points to Rule 403, which allows the Court to exclude
    relevant evidence on grounds such as undue delay, time wasting, and the needless
    presentation of cumulative evidence. Plaintiff fears that she will suffer prejudice
    should the Court allow both Dr. Silverman and Dr. Wiesenfeld to testify.*° She
    28 Ty addition, the Court must construe the Delaware Rules of Evidence—including Rule 702,
    which governs the admissibility of expert testimony—so as to pursue “the end of ascertaining the
    truth.” D.R.E. 102.
    29 See Crowhorn, 
    793 A.2d at
    433 (citing Daubert v. Merrell Dow Pharms., Inc., 
    509 U.S. 579
    ,
    593 (1993)) (“Daubert requires that the expert's reasoning be both scientifically valid and
    applicable to the facts of the case.”).
    30 Trans. ID 65946477.
    31 Td, at { 1.
    32 Td.
    33 Td. at 2 (citing Fromal v. George, 
    2004 WL 65334
     (Del. Jan. 7, 2004)).
    34 
    Id.
     (citing D.R.E. 403).
    35 See 
    id.
     at J 3.
    argues that that the jury will assign the doctors’ shared opinion greater weight after
    hearing it twice.*°
    CCHS responds that Delaware law permits a party to present the testimony of
    two experts who practice in the same field.*” And CCHS notes that, despite their
    shared field, Dr. Silverman and Dr. Wiesenfeld have different experiences by virtue
    of their practices.*® CCHS also contends that Dr. Silverman and Dr. Wiesenfeld will
    serve partially distinct functions, as each will rebut different opinions offered by one
    of Plaintiff’s experts, Dr. Elizabeth Eden.*”
    The Court will allow the testimony of both Dr. Silverman and Dr. Wiesenfeld.
    The Supreme Court of Delaware has made clear that “the fact that evidence may be
    cumulative does not render it inadmissible.”*° With respect to Rule 403, the Court
    36 See 
    id.
    37 Trans. ID 65977063, at J 1; see 
    id.
     at § 2 (first quoting Barrow v. Abramowicz, 
    931 A.2d 424
    ,
    430 (Del. 2007); and then quoting Green v. Alfred A.I. DuPont Inst. of the Nemours F ound., 
    759 A.2d 1060
    , 1065 (Del. 2000)).
    38 Td, at J 6 (noting that Dr. Silverman, among other things, is a private practice physician and is
    board certified in maternal fetal medicine, whereas Dr. Wiesenfeld, among other things, practices
    at a teaching hospital and is not board certified in maternal fetal medicine); 
    id.
     at q 8 (“Dr.
    Wiesenfeld routinely orders HIV testing during pregnancy and delivers babies, whereas[] Dr.
    Silverman does not currently routinely do either.”).
    9 Id. at 41.
    40 Barrow v. Abramowicz, 
    931 A.2d 424
    , 430 (Del. 2007); accord Galmore v. St. Francis Hosp.;
    
    2011 WL 2083888
    , at *2 (Del. Super. Ct. Apr. 27, 2011) (quoting Barrow v. Abramowicz, 
    931 A.2d 424
    , 430 (Del. 2007)) (“[T]his Court should limit a party’s presentation of evidence on the
    ground that it is cumulative ‘only sparingly.’”); DeBussy v. Graybeal, 
    2016 WL 8379211
    , at *1
    (Del. Super. Ct. Dec. 2, 2016) (“{O}verlapping evidence is not automatically inadmissible.”). At
    the hearing, Plaintiffs counsel attempted to distinguish the relevant cases—those just cited and
    others—on factual grounds. See Transcript of March 25, 2021 Hearing, at 30:1 0-41:5. But each
    case contains general—rather than fact-bound—statements to the effect that cumulative evidence
    should not automatically be excluded.
    9
    “has been cautioned against excluding cumulative evidence too freely [under Rule
    403] and informed that overlapping evidence is not automatically inadmissible.”
    Also, if Dr. Silverman and Dr. Wiesenfeld each rebut a different aspect of Dr. Eden’s
    testimony, then each expert’s testimony will have independent probative value; and
    if evidence has probative value, then there is a heavy presumption in favor of its
    admissibility under Rule 403.” Finally, with respect to the potential for prejudice
    to Plaintiff, the Court has noted that “[e]ven if [two] doctors largely duplicate one
    another's testimony, duplication does not equal prejudice.”*? In addition, the jury
    will be instructed that “[p}reponderance of the evidence does not depend on the
    number of witnesses.”“4
    That said, the Court will not allow “piling on.” The causation opinions of
    these two experts are virtually identical. The differences are their specialties and
    experience. The Court expects that on direct examination, CCHS will not spend an
    inordinate amount of the jurors’ time and attention eliciting from both experts a
    41 DeBussy v. Graybeal, 
    2016 WL 8379211
    , at *1 (Del. Super. Ct. Dec. 2, 2016).
    42 D R.E. 403 (emphasis added) (“The court may exclude relevant evidence if its probative value
    is substantially outweighed by a danger of one or more of the following: unfair prejudice,
    confusing the issues, misleading the jury, undue delay, wasting time, or needlessly presenting
    cumulative evidence.”).
    43 DeBussy, 
    2016 WL 8379211
    , at *2.
    44 Superior Court Civil Pattern Jury Instruction 4.1.; see also DeBussy, 
    2016 WL 8379211
    , at *2
    (“The jury will be instructed not to give more weight to one side's evidence simply because that
    side has presented a greater number of experts or witnesses. Therefore, [the plaintiff] will not be
    unfairly prejudiced by the fact that [the defendant] will present two expert witnesses compared to
    her one witness.’’).
    10
    lengthy explanation as to causation. D.R.E. 403 still applies, and there does come a
    point when the number of experts and the duration of their explanations of identical
    opinions becomes unfairly prejudicial to the other side.** Consequently, Plaintiff's
    Motion in Limine to Limit Cumulative Expert Testimony is DENIED without
    prejudice.
    C. ‘Plaintiff's Motion in Limine to Limit Neil Silverman M.D.’s Testimony
    Regarding Standard of Care“
    In this Motion, Plaintiff seeks to exclude Dr. Silverman’s testimony about the
    applicable standard of care.*’ According to Plaintiff, the alleged breach in this case
    is the case is the failure of CCHS’s obstetric agents—a number of nurse
    practitioners—to appropriately test N.D.’s mother for HIV.”® Plaintiff argues that
    Dr. Silverman is not qualified to speak to this issue because he is a maternal fetal
    medicine physician who has not provided obstetrical care since 1997.” Indeed,
    Plaintiff continues, Dr. Silverman conceded that the standard of care has changed
    since he last provided obstetrical care.°° And now that he is a maternal fetal medicine
    physician, Dr. Silverman no longer orders HIV testing or screening for expectant
    45 Yes, there is a curative instruction, but, as gatekeeper, the Court must exercise its discretion to
    ensure a fair trial.
    4© Trans. ID 65946338.
    47 Td, at F 2.
    48 Id. at 1.
    49 Id. at ¥ 2.
    °° Id. at J 3.
    11
    mothers.*! Plaintiff avers that Dr. Silverman testified that no national standard of
    care exists for such testing or screening and that he is not qualified to offer an opinion
    about the standard of care for nurse practitioners providing obstetrical care in
    Wilmington, Delaware.°*
    CCHS responds that Dr. Silverman should be able to testify as to whether
    CCHS’s obstetrics providers appropriately tested or screened N.D.’s mother for
    HIV.* CCHS points out that, in addition to being a maternal fetal medicine
    physician, Dr. Silverman is board certified in obstetrics and gynecology and that he
    has been recognized as a national expert on HIV testing during pregnancy.™ Further,
    CCHS notes that Dr. Silverman was on the American College of Obstetricians and
    Gynecologists (“ACOG’) committee that published ACOG Committee Opinion
    752.>> This is significant, according to CCHS, because Plaintiffs own standard-of-
    care expert, Dr. Eden, conceded in her deposition that ACOG Committee Opinion
    752 articulates the standard of care that applies in this case.°° CCHS also argues that
    Plaintiff misleadingly characterizes Dr. Silverman as a maternal fetal medicine
    physician rather than an obstetrician because maternal fetal medicine is a
    *! Td.
    52 Td.
    °3 See generally Trans. ID 65977202.
    4 Td. at{ 1.
    5 Id. at 2.
    %6 Id. at | 3; id. at] 5.
    12
    subspeciality of obstetrics and gynecology.*’ Finally, CCHS charges Plaintiff with
    misconstruing Dr. Silverman’s testimony.°® According to CCHS, Dr. Silverman did
    not testify that there is no national standard for HIV screening during pregnancy;
    rather, the testimony that Plaintiff refers to “concerns rescreening protocols for other
    sexually transmitted diseases such as chlamydia and gonorrhea.”*°
    The Court will allow Dr. Silverman to testify as to the standard of care. Dr.
    Silverman has relevant qualifications, in part because he was “on the committee that
    helped review and edit” ACOG Committee Opinion 752, which addresses prenatal
    and perinatal HIV testing.” Plaintiff and CCHS agree that ACOG Committee
    Opinion 752 does not itself constitute the standard of care.°' But that does not bar
    Dr. Silverman from testifying about that publication for purposes of establishing the
    standard of care. As the Supreme Court of Delaware has stated, “It is settled law
    57 Td. at J 4.
    8 Id. at { 6.
    ° Id.
    60 Trans. ID 65977202, Ex. C, at 15:9-15. Apart from his involvement with ACOG Committee
    Opinion 752, Dr. Silverman has substantial expertise in the realm of HIV issues during pregnancy.
    Trans. ID 65977202, Ex. C, at 10:10-14 (noting that he has been involved with “publications
    dealing with HIV issues in pregnancy starting in 1992[] and continuing until the present day when
    [he] was asked by ACOG to be the primary author on . .. Management of Labor and Delivery with
    HIV Infection,” which “was published in 2018”).
    61 See Transcript of March 25, 2021 Hearing, at 50:9-10 (Mr. Lengkeek: “[T]he document [ACOG
    Committee Opinion 752] itself says this is not the standard of care.”); id. at 55:8-17 (The Court:
    “Mr. Meyeroff, do you agree with that statement, ACOG is not the standard of care? It cannot be
    used as the standard of care by its own express terminology?” Mr. Meyeroff: “Your Honor, I
    would say generally yes, but to caveat that Dr. Eden testified under oath that it defines the standard
    of care in this case. So as a general rule, yes, but their own expert has said this defines how a
    pregnant woman should be tested.”).
    13
    that the standard of care in a medical malpractice action is established by evidence
    of the degree of care and competence ordinarily exercised by physicians on the same
    or similar community.”©? Plaintiff has not provided any authority to suggest that
    ACOG Committee Opinion 752 cannot constitute “evidence” of the applicable
    standard of care. Moreover, Plaintiff's own standard-of-care expert, Dr. Eden,
    testified during her deposition that ACOG Committee Opinion 752 articulates the
    standard of care that applies in this case.® If Dr. Eden is qualified to testify as to the
    applicable standard of care, and if Dr. Eden believes that the standard of care appears
    in ACOG Committee Opinion 752, then Dr. Silverman should be able to testify as
    to his understanding of the recommendations in that publication. To the extent that
    Dr. Silverman’s interpretation differs from Dr. Eden’s, that inconsistency would go
    to the weight of Dr. Silverman’s testimony, not its admissibility. Accordingly,
    Plaintiffs Motion in Limine to Limit Dr. Silverman’s Testimony Regarding
    Standard of Care is DENIED.
    D.  Plaintiff’s Motion in Limine to Limit Dr. Coleen Cunningham’s
    Testimony Regarding the Standard of Care™
    During the hearing on these Motions, CCHS’s counsel stated the following:
    62 Pryett v. Lewis, 
    2011 WL 882102
    , at *2 (Del. Super. Ct. Mar. 10, 2011) (internal quotation
    marks omitted and emphasis added) (quoting Timblin v. Kent General Hosp., 
    640 A.2d 1021
    , 1024
    (Del. 1994)).
    63 Trans. ID 65977202, Ex. E, at 22:22-23:1 (“Q. But is it fair to say that the Committee Opinion
    752 is articulating the standard of care that also applied back in 2016? A. Yeah.”).
    64 Trans. ID 65946141.
    14
    To the extent that [CCHS is] able to call [Dr. Wiesenfeld and Dr.
    Silverman] to address the standard of care issues, [CCHS] would not
    offer Dr. Cunningham to address standard of care. .... [I]f that makes
    it easier for Your Honor we can probably moot this motion.®
    Plaintiff has not sought to exclude Dr. Wiesenfeld’s testimony regarding the
    standard of care, and the Court will allow Dr. Wiesenfeld to testify as to that issue.
    As for Dr. Silverman, the Court has concluded he will be allowed to testify as to the
    standard of care. According to CCHS’s representation, then, CCHS will not call Dr.
    Cunningham to testify regarding the standard of care. Accordingly, Plaintiff's
    Motion in Limine to Limit Dr. Coleen Cunningham’s Testimony Regarding the
    Standard of Care is MOOT.
    E. _ Plaintiff’s Omnibus Motion in Limine®
    1. Comparative Negligence
    Plaintiff (N.D.’s grandmother) seeks to exclude any evidence or argument that
    she or N.D.’s mother was comparatively negligent.°’ As for N.D.’s mother, the crux
    of the comparative negligence issue is whether she would have complied with her
    HIV treatment plan had CCHS retested her when she was 36 weeks pregnant and
    65 Transcript of March 25, 2021 Hearing, at 60:7—-14.
    66 Trans. ID 65946227.
    67 Td. at] 1. As CCHS clarified, however, it does not seek to show that Plaintiff was comparatively
    negligent; rather, it seeks to use evidence of Plaintiff's conduct to show that she failed to mitigate
    the damages that she could recover should CCHS be found negligent. Transcript of March 25,
    2021 Hearing, at 68:23-69:3 (Mr. Meyeroff: “So if the grandmother learned of it earlier, but
    delayed treatment, that impacts the child’s condition[,] the life-care plan[,] and the damages
    claim.”); id. at 71:19-20 (Mr. Meyeroff: “For the grandmother issue, that would be for damages.”).
    15
    had that retest resulted in a positive diagnosis. CCHS argues that N.D.’s mother
    would have been noncompliant with her HIV treatment.® In support, CCHS points
    to evidence that N.D.’s mother had not complied with certain recommendations
    during pregnancy or with her HIV treatment after she learned that she had been
    infected. Plaintiff responds that the jury should not be allowed to use this evidence
    to speculate that N.D.’s mother would have been noncompliant with her HIV
    treatment had she been diagnosed during pregnancy.”
    Pursuant to D.R.E. 403, the Court will exclude as unfairly prejudicial any
    testimony, comments, questions, arguments, or suggestions that N.D.’s mother was
    comparatively negligent. First, evidence of her prior noncompliance has
    questionable probative value as to whether she would have been noncompliant again.
    When N.D.’s mother failed to comply with recommendations during pregnancy, she
    was not aware that she had HIV; and when she failed to comply with her HIV
    treatment, she was not pregnant with N.D. Her noncompliance under these
    circumstances sheds little light on whether she would comply with her HIV
    treatment during pregnancy, when noncompliance would mean risking transmission
    of the virus to N.D. And to the extent that evidence of N.D.’s mother’s prior
    68 Transcript of March 25, 2021 Hearing, at 72:4-18.
    6 Id.; id. at 73:3-6.
    1 Td. at 77:17—78:4.
    16
    noncompliance has probative value, the Court finds that it is substantially
    outweighed by the risk that the jury would use that evidence to speculate that N.D.’s
    mother would again be noncompliant.”
    Next, CCHS argues that evidence of Plaintiff's conduct should be admissible
    to show that Plaintiff delayed or otherwise failed to take appropriate steps in
    facilitating N.D.’s HIV treatment.”” CCHS would offer such evidence to show that
    Plaintiff allegedly failed to mitigate damages.”* “Failure to mitigate damages is an
    affirmative defense... .””* “Generally, an affirmative defense must be pled or the
    defense is waived.”” Nonetheless, a “party may amend the party’s pleading . . . by
    1 Jn addition, D.R.E. 404(b) prohibits “[e]vidence of a . . . wrong[] or other act .. . to prove a
    person's character in order to show that on a particular occasion the person acted in accordance
    with teh character.” D.R.E. 404(b). Although the evidence would invite a predictive inference
    (ie., suggesting what N.D.’s mother would have done rather than what she in fact did on a
    particular occasion), the inference violates the spirit of 404(b), which is to “forbid[] the proponent
    ... from offering evidence of . . . misconduct to support a general inference of bad character.”
    Getz v. State, 
    538 A.2d 726
    , 730 (Del. 1988).
    72 See id. at 71:7-71:14; see, e.g., id. at 68:19-21 (“The . . . issue is when did [Plaintiff] learn of
    the HIV diagnosis for [N.D] and what role that may have played.”); id. at 70:22—71:6 (“[T]here
    are references in the records that there was difficulty in getting the baby to take the HIV medicine
    .... [T]he delay in treatment impacts the vital load and the growth. And Dr. Bennett agreed if
    there was a delay in administering the medications, that impacts the growth of the HIV ... .”).
    7? Transcript of March 25, 2021 Hearing, at 71:9-23.
    74 BTG Int'l, Inc. v. Wellstat Therapeutics Corp., 
    2017 WL 4151172
    , at *20 (Del. Ch. Ct. Sept. 19,
    2017) (internal quotation marks omitted) (quoting Tanner v. Exxon Corp., 
    1981 WL 191389
    , at *4
    (Del. Super. Ct. July 23, 1981)), aff'd in part, rev'd in part on other grounds, BTG Int ‘l, Inc. v.
    Wellstat Therapeutics Corp., 
    2018 WL 2966941
     (Del. June 11, 2018).
    75 James v. Glazer, 
    570 A.2d 1150
    , 1153 (Del. 1990) (citations omitted); see also Del. Super. Ct.
    R. Civ. 8(c) (“In pleading to a preceding pleading, a party shall set forth affirmatively ... any...
    matter constituting an. . . affirmative defense.”).
    17
    leave of court,” which “shall be freely given when justice so requires.””° Whether
    to grant a motion to amend is “entrusted to the sound discretion of the trial court.”””
    Here, CCHS filed its Answer on November 28, 2018.78 CCHS did not include
    Plaintiff's alleged failure to mitigate damages as an affirmative defense. Nor did
    CCHS move to amend its Answer to include that defense. Indeed, the Court first
    learned that CCHS intended to raise that defense at the hearing on March 25, 2021.
    Plaintiff, too, was previously unaware that CCHS intended to raise the defense.”
    For these reasons, the Court will exclude testimony, comments, questions,
    arguments, and suggestions that Plaintiff failed to mitigate damages by delaying or
    otherwise failing to take appropriate steps in facilitating N.D.’s HIV treatment.
    2. References by Any Expert as to How S/he Personally Would Have
    Treated the Plaintiff (or a Similar Patient), or How the Expert’s Partners
    or Associates Would Have Treated the Plaintiff
    Plaintiff argues that the jury might misconstrue testimony about experts’
    anecdotal experiences and what they would have done in this case as evidence of the
    applicable standard of care. Such testimony, Plaintiff contends, should be
    7 Del. Super. Ct. R. Civ. P. 15(a).
    1 State v. Sykes, 
    2013 WL 3834048
    , at *2 (Del. Super. Ct. July 12, 2013) (citing Mullen v.
    Alarmguard of Delmarva, Inc., 
    625 A.2d 258
    , 263 (Del. 1993)).
    78 Trans. ID 62702317.
    79 See Trans. ID 65946227, at § 1 (emphasis added) (asking the Court to “preclude testimony,
    comments, questions, arguments, or suggestions that she [Plaintiff] was comparatively negligent
    in any respect”).
    80 Trans. ID 65946227, at 2.
    18
    excluded under D.R.E. 402 and D.R.E. 403; Plaintiff also asserts that such evidence
    amounts to hearsay.*! CCHS largely agrees.®* It maintains, however, that expert
    testimony should not be excluded if its purpose is to impeach or to demonstrate
    reasonable alternative medical treatments consistent with the standard of care. But
    CCHS later states that it does “not intend to argue that there were ‘alternative
    treatments’ to screening that should/should not have been employed.”** So the Court
    need only clarify that it will allow proper impeachment testimony but will otherwise
    exclude as unfairly prejudicial any testimony from experts about what they (or their
    partners or associates) would have done in this case or what they have done with
    similar patients.
    3, Evidence of Good Character
    Because the admissibility of evidence of good character will depend on the
    way that it is characterized, the Court will defer ruling on this aspect of the Motion
    until trial. When such evidence is offered at trial, the Court will view it through the
    lens of D.R.E. 403.
    4. That Defendant’s Agents and Employees Exercised a Good Faith
    Judgment Between Two Appropriate Alternative Medical Treatments
    81 Tq.
    82 Trans. ID 65977132, at § 2.
    83 Td.
    84 Td. at] 4.
    19
    Plaintiff argues that CCHS should not be able to avoid liability by showing or
    attempting to show that it was not negligent because it chose between acceptable
    alternative treatments.2> CCHS does not intend to make that argument.®° So the
    Court will exclude testimony, comments, questions, arguments, and suggestions to
    that effect.
    5: Uncalled Witness(es)
    At the hearing, Plaintiff's counsel limited the scope of his request to
    “propos[ing] that nobody comments on an uncalled witness before informing the
    other side or the Court.”®’ The parties therefore agree that this issue is best handled
    at trial,®° and the Court will defer ruling on it until it arises.
    6. Apologies, Condolences, or Sorrow Over N.D.'s HIV Status
    Pursuant to 10 Del. C. § 4318(b), The Court will exclude testimony,
    comments, questions, arguments, and suggestions that CCHS is sympathetic or
    apologetic as to N.D.’s being born HIV positive.”
    7. Vouching
    85 Trans. ID 65946227, at J 4.
    86 Trans. ID 65977132, at | 4.
    87 Transcript of March 25, 2021 Hearing, at 87:7-9.
    88 Trans. ID 65977132, at J 5.
    89 The Court will also ensure that Plaintiff does not attempt “to mislead the jury or appeal to its
    bias or prejudice.” Deangelis v. Harrison, 
    628 A.2d 77
    , 80 (Del. 1993). “[W]here objection is
    made, the trial court is obliged to act firmly with curative instructions even where no objection is
    forthcoming until after summations.” Jd. (citing Massey-Ferguson, Inc. v. Wells, 
    421 A.2d 1320
    ,
    1324 (1980)).
    20
    The Court will exclude testimony, comments, questions, arguments, and
    suggestions that CCHS’s experts are “the best” or any similar attempt to vouch—
    except as necessary to establish the experts’ qualifications. Accordingly, Plaintiffs
    Omnibus Motion in Limine is GRANTED IN PART AND DENIED IN PART.
    V. CONCLUSION
    In sum, the Court GRANTS Plaintiff's Motion in Limine to Exclude
    Causation Testimony from Dr. Neil Silverman and Dr. Harold Wiesenfeld, DENIES
    Plaintiff's Motion in Limine to Limit Cumulative Expert Testimony, DENIES
    Plaintiff's Motion in Limine to Limit Neil Silverman M.D.’s Testimony Regarding
    Standard of Care, finds that Plaintiff's Motion in Limine to Limit Dr. Coleen
    Cunningham’s Testimony Regarding the Standard of Care is MOOT; and GRANTS
    IN PART AND DENIES IN PART Plaintiff's Omnibus Motion in Limine as
    follows:
    e The Court will exclude testimony, comments, questions, arguments,
    and suggestions that N.D.’s mother was comparatively negligent.
    e The Court will exclude testimony, comments, questions, arguments,
    and suggestions that Plaintiff failed to mitigate damages by delaying
    or otherwise failing to take appropriate steps in facilitating N.D.’s
    HIV treatment.
    e The Court will exclude testimony from experts about what they (or
    their partners or associates) would have done in this case or what
    they have done with similar patients.
    21
    e The Court will defer to trial ruling on evidence of good character
    and comments on uncalled witnesses.
    e The Court will exclude testimony, comments, questions, arguments,
    and suggestions to that effect CHSS made a good faith judgment
    between acceptable alternative medical treatments.
    e The Court will exclude testimony, comments, questions, arguments,
    and suggestions that CCHS is sympathetic or apologetic as to N.D.’s
    being born HIV positive.
    e The Court will exclude testimony, comments, questions,
    arguments, and suggestions that CCHS’s experts are “the best” or
    any similar attempt to vouch.
    IT IS SO ORDERED.
    YZ]
    an den, President Judge
    cc: Prothonotary
    22