PLAINTIFF’S EXPERT’S AFFIDAVIT IN THIS MEDICAL MALPRACTICE ACTION WAS CONCLUSORY AND SPECULATIVE; THE AFFIDAVIT, THEREFORE, DID NOT RAISE A QUESTION OF FACT (SECOND DEPT).

The Second Department, reversing Supreme Court, determined plaintiff’s expert affidavit in this medical malpractice action was conclusory and speculative, and therefore did not raise a question of fact:

The plaintiff submitted the affidavit of her expert, a physician board certified in vascular surgery, who agreed with [defendant} Mansouri’s plan to perform right femoral popliteal bypass surgery. The plaintiff’s expert further opined, however, that Mansouri departed from the accepted standard of care by not choosing a different vessel once he found the popliteal artery to be diseased with plaque. The expert’s affidavit was conclusory and speculative. While the expert opined that Mansouri should have used a different vessel, he failed to specify which vessel should have been used … . For that same reason, the assertion by the plaintiff’s expert that “the vessel should have been bypassed more distally” was conclusory and speculative. Moreover, the opinion of the plaintiff’s expert that Mansouri deviated from good and accepted medical practice by failing to verify that the plaintiff had sufficient perfusion after the surgery is unsupported by competent evidence … . Coffey v Mansouri, 2022 NY Slip Op 05678, Second Dept 10-12-22

Practice Point: The plaintiff’s expert’s affidavit in this medical malpractice case was deemed speculative, conclusory and unsupported by competent evidence. Defendants’ motion for summary judgment should have been granted.