EXPERTS MAY NOT RELY ON DISPUTED FACTS IN RENDERING AN OPINION IN A MEDICAL MALPRACTICE CASE (FOURTH DEPT).

The Fourth Department, modifying Supreme Court in this medical malpractice action, noted that experts cannot rely on disputed facts when rendering an opinion:

Although defendants submitted affidavits from medical experts opining that the individual defendants did not deviate from the standard of care and that any alleged deviation was not a proximate cause of the postsurgery medical complications, those experts relied solely on the symptoms as documented in the medical records of [two of the defendants]. … [T]hose symptoms are vastly different from the symptoms allegedly reported to the remaining defendants and demonstrated by plaintiff before the surgery. It is well settled that experts may not rely upon disputed facts when rendering an opinion … . Moreover, we note that defendants’ experts failed to address plaintiff’s contention that, had he been timely diagnosed, he would not have been required to undergo the surgery in the first place. … “By ignoring the [allegation that the remaining defendants’ malpractice caused plaintiff to undergo the very surgery that caused the brain bleed], defendant[s’] expert[s] failed to tender[ ] sufficient evidence to demonstrate the absence of any material issues of fact’ . . . as to proximate causation and, as a result, [the remaining] defendant[s] [were] not entitled to summary judgment” with respect to those parts of their respective motions and cross motions … . Kubera v Bartholomew, 2018 NY Slip Op 08784, Fourth Dept 12-21-18