The Fourth Department, reversing Supreme Court, determined defendants’ motion for a judgment as a matter of law (on the issue of causation) should not have been granted. Plaintiff alleged the delay in diagnosing or failure to diagnose plaintiff’s decedent’s condition diminished plaintiff’s decedent’s chance of a better outcome. Plaintiff’s expert’s inability to quantify the extent to which defendants’ conduct diminished the chance of a better outcome did not render the proof insufficient:
In order to establish proximate causation, the plaintiff must demonstrate that the defendant’s deviation from the standard of care “was a substantial factor in bringing about the injury” (PJI 2:70…). Where, as here, the plaintiff alleges that the defendant negligently failed or delayed in diagnosing and treating a condition, a finding that the negligence was a proximate cause of an injury to the patient may be predicated on the theory that the defendant thereby “diminished [the patient’s] chance of a better outcome,” in this case, survival … . In that instance, the plaintiff must present evidence from which a rational jury could infer that there was a “substantial possibility” that the patient was denied a chance of the better outcome as a result of the defendant’s deviation from the standard of care … . However, “[a] plaintiff’s evidence of proximate cause may be found legally sufficient even if his or her expert is unable to quantify the extent to which the defendant’s act or omission decreased the [patient’s] chance of a better outcome . . . , as long as evidence is presented from which the jury may infer that the defendant’s conduct diminished the [patient’s] chance of a better outcome’ … . Clune v Moore, 2016 NY Slip Op 06331, 4th Dept 9-30-16