Medical Malpractice—Expert Opinion Can Be Based Entirely on Experience.

In affirming the denial of defendants’ motion for summary judgment, the First Department noted that an expert’s affidavit can be sufficient to raise a triable issue of fact even where the opinion is based entirely on the expert’s professional experience: “While an expert affidavit cannot be speculative, there is no threshold requirement in an ordinary case, not involving a novel scientific theory, that a medical opinion regarding deviation be based upon medical literature, studies, or professional group rules in order for it to be considered. It can be based upon personal knowledge acquired through professional experience …”.  Mitrovic v Silverman, 9282, 304369/09, First Dept. 3-7-13