1 WO 2 3 4 5 6 IN THE UNITED STATES DISTRICT COURT 7 FOR THE DISTRICT OF ARIZONA
9 Russell Alan Gout, et al., No. CV-21-00852-PHX-DLR
10 Plaintiffs, ORDER
11 v.
12 24HR Homecare LLC, et al.,
13 Defendants. 14 15 16 Before the Court are two motions: Defendants’ Amended Rule 702 Motion in 17 Limine to Exclude Testimony of Medical Examiner Lesley E. Wallis, D.O. (Doc. 100), and 18 Defendants’ Amended Motion for Partial Summary Judgment on Plaintiffs’ Wrongful 19 Death Claim (Doc. 101), both of which are fully briefed (Docs. 103, 107, 108, 109).1 20 Because these motions are interrelated, the Court will address them together. For the 21 following reasons, the Court denies both motions. 22 I. Background 23 Plaintiffs allege that the decedent, Maxine Gout, died as a result of a fall on July 28, 24 2019. They claim that Gout struck her head and suffered a subdural hematoma, eventually 25 leading to her death on October 6, 2019. Plaintiffs disclosed as a causation expert Dr. 26 Wallis, a Medical Examiner for Maricopa County, who opined that Gout died from 27 1 Oral argument is denied because the issues are adequately briefed, and oral 28 argument will not assist the Court in reaching its decision. See Fed. R. Civ. P. 78(b); LRCiv. 7.2(f). 1 “complications of blunt force trauma.” (Doc. 100-7 at 2.) Defendants move, pursuant to 2 Federal Rule of Evidence 702, to exclude Dr. Wallis’ opinion. (Doc. 100.) Defendants also 3 move, pursuant to Federal Rule of Civil Procedure 65(b), for partial summary judgment on 4 Plaintiffs’ wrongful death claim, arguing that Plaintiffs cannot meet their burden of proof 5 because they failed to disclose any admissible expert opinion establishing proximate cause. 6 (Doc. 101.) 7 II. Defendants’ Rule 702 Motion to Exclude Dr. Wallis’ Testimony 8 Federal Rule of Evidence 702 governs the admissibility of expert witness testimony. 9 A witness who is qualified as an expert may testify in the form of an opinion if the 10 proponent demonstrates to the court that it is more likely than not that: 11 (1) the expert’s scientific, technical, or other specialized knowledge will help the trier of fact to understand the evidence 12 or determine a fact in issue; (2) the testimony is based on sufficient facts or data; (3) the testimony is the product of 13 reliable principles and methods; and (4) the expert has reliably applied the principles and methods to the facts of the case. 14 15 Fed. R. Evid. 702. A trial court functions as a “gatekeeper,” excluding expert opinions if 16 they do not meet the requirements of relevance and reliability under Rule 702. See Daubert 17 v. Merrell Dow Pharms., Inc., 509 U.S. 579, 589 (1993). A court accomplishes this by 18 making a preliminary determination that an expert’s testimony is both relevant and reliable. 19 Id. at 585–95. Rejection of expert testimony, however, remains “the exception rather than 20 the rule.” Fed. R. Evid. 702 advisory committee’s note (2000 amendments). 21 The Court has latitude in deciding how to determine whether an expert’s opinion 22 meets the requirements of Rule 702. Kumho Tire Co. v. Carmichael, 526 U.S. 137, 141– 23 42 (1999). The Court “may consider one or more of the specific factors that Daubert 24 mentioned when doing so will help determine that testimony’s reliability. But . . . the test 25 of reliability is flexible, and Daubert’s list of specific factors neither necessarily nor 26 exclusively applies to all experts in every case.” Id. Here, the Court finds Plaintiffs have 27 met their burden of establishing by a preponderance of the evidence that Dr. Wallis’ 28 opinions meet the requirements of Rule 702. 1 Defendants argue that Dr. Wallis’ opinion is based on insufficient facts and data. 2 The Court disagrees. The parties do not dispute Gout had a number of ailments and co- 3 morbidities in the months leading up to her death. (See Doc. 100 at 3; Doc. 103 at 15.) Dr. 4 Wallis opined that Gout developed a large right frontal subdural hematoma as a result of a 5 fall she suffered in July 2019. (Doc. 103-5 at 23.) Gout then underwent a right frontal 6 craniotomy for subdural evacuation and later received a ventricle peritoneal shunt. (Id.) 7 From that point forward, Gout’s health declined, ultimately leading to her death. (Doc. 8 103-5 at 22.) Because Gout never “returned to baseline” following her July 2019 fall, Dr. 9 Wallis concluded that Gout died from complications arising from the blunt force head 10 trauma, with contributory factors of hypertensive cardiovascular disease and diabetes 11 mellitus. (Doc. 103-5 at 22, 41; Doc. 100-7.) 12 To draw this opinion, Dr. Wallis relied on Gout’s medical records, subpoenaed by 13 the Maricopa County Medical Examiner’s Office, as well as the Preliminary Investigative 14 Report generated by Sam McDonald, an investigator with the same office. (Doc. 103-5 at 15 13–18.) During her deposition, Dr. Wallis testified that, generally, when a “case [is] not 16 admitted”—in other words, the decedent is not physically admitted into the Medical 17 Examiner’s facility for external examination or a full autopsy—the medical examiner will 18 determine cause of death by reviewing the decedent’s subpoenaed medical records. (Doc. 19 103-5 at 13–14.) That is what Dr. Wallis did here. The Medical Examiner’s Office 20 subpoenaed Gout’s medical records, including records from St. Joseph’s Hospital, Hospice 21 of the Valley, and the Gardens of Scottsdale. (Docs. 103-2, 103-3.) These documents 22 contained consultation records, radiology records, Gout’s pertinent medical history, and 23 information about Gout’s condition in the weeks prior to her death. (Doc. 103-5 at 33; Doc. 24 100-5, 100-6; Doc. 103-6; Doc. 103-7.) And the medical history contained in these records 25 accounts for Gout’s pre-existing illnesses, such as diabetes and hypertension, Gout’s May 26 2019 ruptured aneurysm, and her July 2019 subdural hematoma. (See e.g., Doc. 103-6.) 27 Dr. Wallis relied on these medical records and the Preliminary Investigative Report to draw 28 1 her opinion. (Doc. 103-5 at 21.) Thus, the Court finds that Dr. Wallis based her conclusion 2 on sufficient facts and data. 3 Defendants fault Dr. Wallis for not reviewing specific medical records from before 4 Gout’s July 28, 2019, fall and for not performing an examination or autopsy of the body. 5 (Doc. 100 at 9–10.) These arguments go to the weight, not the admissibility, of Dr. Wallis’ 6 opinion. In re Toyota Motor Corp Unintended Acceleration Mktg., Sales Practices & 7 Prods. Liab. Litit., 978 F. Supp. 2d 1053, 1073 (C.D. Cal. 2013) (“[Defendant’s] challenges 8 regarding all of the materials that [expert] did not review go to weight, not admissibility.”); 9 Silva v. Chung, No. 15-00436, 2019 WL 2195201, at *2 (D. Haw. May 21, 2019) (“A 10 physical examination of the decedent is not required for an expert to be permitted to testify 11 as to cause of death.”); Williams v. Daszko, No. 2:14-cv-1248, 2018 WL 2684314, at *6 12 (E.D. Cal.
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1 WO 2 3 4 5 6 IN THE UNITED STATES DISTRICT COURT 7 FOR THE DISTRICT OF ARIZONA
9 Russell Alan Gout, et al., No. CV-21-00852-PHX-DLR
10 Plaintiffs, ORDER
11 v.
12 24HR Homecare LLC, et al.,
13 Defendants. 14 15 16 Before the Court are two motions: Defendants’ Amended Rule 702 Motion in 17 Limine to Exclude Testimony of Medical Examiner Lesley E. Wallis, D.O. (Doc. 100), and 18 Defendants’ Amended Motion for Partial Summary Judgment on Plaintiffs’ Wrongful 19 Death Claim (Doc. 101), both of which are fully briefed (Docs. 103, 107, 108, 109).1 20 Because these motions are interrelated, the Court will address them together. For the 21 following reasons, the Court denies both motions. 22 I. Background 23 Plaintiffs allege that the decedent, Maxine Gout, died as a result of a fall on July 28, 24 2019. They claim that Gout struck her head and suffered a subdural hematoma, eventually 25 leading to her death on October 6, 2019. Plaintiffs disclosed as a causation expert Dr. 26 Wallis, a Medical Examiner for Maricopa County, who opined that Gout died from 27 1 Oral argument is denied because the issues are adequately briefed, and oral 28 argument will not assist the Court in reaching its decision. See Fed. R. Civ. P. 78(b); LRCiv. 7.2(f). 1 “complications of blunt force trauma.” (Doc. 100-7 at 2.) Defendants move, pursuant to 2 Federal Rule of Evidence 702, to exclude Dr. Wallis’ opinion. (Doc. 100.) Defendants also 3 move, pursuant to Federal Rule of Civil Procedure 65(b), for partial summary judgment on 4 Plaintiffs’ wrongful death claim, arguing that Plaintiffs cannot meet their burden of proof 5 because they failed to disclose any admissible expert opinion establishing proximate cause. 6 (Doc. 101.) 7 II. Defendants’ Rule 702 Motion to Exclude Dr. Wallis’ Testimony 8 Federal Rule of Evidence 702 governs the admissibility of expert witness testimony. 9 A witness who is qualified as an expert may testify in the form of an opinion if the 10 proponent demonstrates to the court that it is more likely than not that: 11 (1) the expert’s scientific, technical, or other specialized knowledge will help the trier of fact to understand the evidence 12 or determine a fact in issue; (2) the testimony is based on sufficient facts or data; (3) the testimony is the product of 13 reliable principles and methods; and (4) the expert has reliably applied the principles and methods to the facts of the case. 14 15 Fed. R. Evid. 702. A trial court functions as a “gatekeeper,” excluding expert opinions if 16 they do not meet the requirements of relevance and reliability under Rule 702. See Daubert 17 v. Merrell Dow Pharms., Inc., 509 U.S. 579, 589 (1993). A court accomplishes this by 18 making a preliminary determination that an expert’s testimony is both relevant and reliable. 19 Id. at 585–95. Rejection of expert testimony, however, remains “the exception rather than 20 the rule.” Fed. R. Evid. 702 advisory committee’s note (2000 amendments). 21 The Court has latitude in deciding how to determine whether an expert’s opinion 22 meets the requirements of Rule 702. Kumho Tire Co. v. Carmichael, 526 U.S. 137, 141– 23 42 (1999). The Court “may consider one or more of the specific factors that Daubert 24 mentioned when doing so will help determine that testimony’s reliability. But . . . the test 25 of reliability is flexible, and Daubert’s list of specific factors neither necessarily nor 26 exclusively applies to all experts in every case.” Id. Here, the Court finds Plaintiffs have 27 met their burden of establishing by a preponderance of the evidence that Dr. Wallis’ 28 opinions meet the requirements of Rule 702. 1 Defendants argue that Dr. Wallis’ opinion is based on insufficient facts and data. 2 The Court disagrees. The parties do not dispute Gout had a number of ailments and co- 3 morbidities in the months leading up to her death. (See Doc. 100 at 3; Doc. 103 at 15.) Dr. 4 Wallis opined that Gout developed a large right frontal subdural hematoma as a result of a 5 fall she suffered in July 2019. (Doc. 103-5 at 23.) Gout then underwent a right frontal 6 craniotomy for subdural evacuation and later received a ventricle peritoneal shunt. (Id.) 7 From that point forward, Gout’s health declined, ultimately leading to her death. (Doc. 8 103-5 at 22.) Because Gout never “returned to baseline” following her July 2019 fall, Dr. 9 Wallis concluded that Gout died from complications arising from the blunt force head 10 trauma, with contributory factors of hypertensive cardiovascular disease and diabetes 11 mellitus. (Doc. 103-5 at 22, 41; Doc. 100-7.) 12 To draw this opinion, Dr. Wallis relied on Gout’s medical records, subpoenaed by 13 the Maricopa County Medical Examiner’s Office, as well as the Preliminary Investigative 14 Report generated by Sam McDonald, an investigator with the same office. (Doc. 103-5 at 15 13–18.) During her deposition, Dr. Wallis testified that, generally, when a “case [is] not 16 admitted”—in other words, the decedent is not physically admitted into the Medical 17 Examiner’s facility for external examination or a full autopsy—the medical examiner will 18 determine cause of death by reviewing the decedent’s subpoenaed medical records. (Doc. 19 103-5 at 13–14.) That is what Dr. Wallis did here. The Medical Examiner’s Office 20 subpoenaed Gout’s medical records, including records from St. Joseph’s Hospital, Hospice 21 of the Valley, and the Gardens of Scottsdale. (Docs. 103-2, 103-3.) These documents 22 contained consultation records, radiology records, Gout’s pertinent medical history, and 23 information about Gout’s condition in the weeks prior to her death. (Doc. 103-5 at 33; Doc. 24 100-5, 100-6; Doc. 103-6; Doc. 103-7.) And the medical history contained in these records 25 accounts for Gout’s pre-existing illnesses, such as diabetes and hypertension, Gout’s May 26 2019 ruptured aneurysm, and her July 2019 subdural hematoma. (See e.g., Doc. 103-6.) 27 Dr. Wallis relied on these medical records and the Preliminary Investigative Report to draw 28 1 her opinion. (Doc. 103-5 at 21.) Thus, the Court finds that Dr. Wallis based her conclusion 2 on sufficient facts and data. 3 Defendants fault Dr. Wallis for not reviewing specific medical records from before 4 Gout’s July 28, 2019, fall and for not performing an examination or autopsy of the body. 5 (Doc. 100 at 9–10.) These arguments go to the weight, not the admissibility, of Dr. Wallis’ 6 opinion. In re Toyota Motor Corp Unintended Acceleration Mktg., Sales Practices & 7 Prods. Liab. Litit., 978 F. Supp. 2d 1053, 1073 (C.D. Cal. 2013) (“[Defendant’s] challenges 8 regarding all of the materials that [expert] did not review go to weight, not admissibility.”); 9 Silva v. Chung, No. 15-00436, 2019 WL 2195201, at *2 (D. Haw. May 21, 2019) (“A 10 physical examination of the decedent is not required for an expert to be permitted to testify 11 as to cause of death.”); Williams v. Daszko, No. 2:14-cv-1248, 2018 WL 2684314, at *6 12 (E.D. Cal. June 5, 2018) (holding that medical expert opinions that do not include the 13 expert’s physical examination of the patient remain “based on sufficient facts and data” 14 and that challenges to such opinions “go to weight, not admissibility”). 15 Defendants also contend that Dr. Wallis’ methods are unreliable because she did not 16 “conduct a differential diagnosis to rule out all of the other known health conditions that 17 caused or contributed to Ms. Gout’s death.” (Doc. 100 at 8.) The Court disagrees. Although 18 running a differential diagnosis might improve reliability, the failure to do so does not 19 render the opinion categorically unreliable. See Allen v. American Cap. Ltd., 287 F. Supp. 20 3d 763, 789–90 (D. Ariz. 2017) (“[F]ailure to rule out every alternative cause is not 21 required. . . . A physician’s failure to rule out the entire possible universe of sources of an 22 individual’s malady goes to the weight the jury gives the testimony, and not to the 23 admissibility of the expert’s opinion.”) (citations omitted). “[W]hen a doctor offers a 24 reasonable medical opinion, grounded in their relevant experience, appropriate analysis, 25 and in the medical literature, their opinions should not be excluded.” Id. at 790. 26 In arguing otherwise, Defendants rely on Claar v. Burlington N. R.R., in which the 27 Ninth Circuit affirmed the district court’s exclusion of expert witnesses, in part, because 28 the experts did not rule out other possible causes of the plaintiffs’ ailments. 29 F.3d 499, 1 502–03 (9th Cir. 1994). However, the experts in that case neither explained the basis for 2 their conclusions nor considered the possibility that the plaintiffs’ injuries pre-existed the 3 chemical exposure. Id. Here, Dr. Wallis explained why she concluded that Gout died from 4 complications arising from blunt force head trauma. (Doc. 103-5 at 21–23; Doc. 100-7.) 5 Furthermore, unlike the experts in Claar, Dr. Wallis was aware of, considered, and 6 incorporated into her findings Gout’s pre-existing conditions and medical history. (Doc. 7 103-5 at 49–50; Doc. 100-6.) Dr. Wallis, qualified as a forensic and anatomic pathologist 8 and with over 19 years of experience as a medical examiner (see Doc. 103-5 at 7–8), offered 9 a reasonable medical opinion grounded in her relevant experience and appropriate analysis 10 of Gout’s medical records. The perceived flaws in Dr. Wallis’ opinions Defendants have 11 identified are issues that can be addressed on cross-examination. But the Court will not 12 exclude Dr. Wallis’ testimony because it finds that Dr. Wallis based her opinion on 13 sufficient facts and data and employed reliable methods in drawing her conclusion. 14 Defendants’ Amended Rule 702 motion is denied. 15 III. Defendants’ Motion for Partial Summary Judgment 16 Defendants’ motion for partial summary judgment is derivative of their Rule 702 17 motion. Defendants contend that Plaintiffs lack causation evidence because they believe 18 Dr. Wallis’ opinion is inadmissible. Because the Court disagrees with the predicate, 19 Defendant’s motion for partial summary judgment necessarily must be denied. 20 IT IS ORDERED that Defendants’ Motion to Exclude Plaintiffs’ Expert Witness 21 Dr. Lesley E. Wallis (Doc. 100) is DENIED. 22 IT IS FURTHER ORDERED that Defendants’ Motion for Partial Summary 23 Judgment (Doc. 101) is DENIED. 24 / / / 25 / / / 26 / / / 27 28 1 IT IS FURTHER ORDERED that the parties shall appear for a telephonic trial 2|| scheduling conference on October 12, 2023, at 2:30 p.m. Call-in instructions will be || provided via separate email. 4 Dated this 19th day of September, 2023. 5 6 b 4 bla _ 8 Do . Rayes 9 United States District Judge 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28
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