Sztejfman医生是阿根廷Sanatorio Finochietto医院瓣膜及结构性心脏病负责人，是多家介入瓣膜公司带教术者。目前累计VitaFlow手术量近40台，累计总TAVR手术超500台。 Dr. Sztejfman is the leader of structural heart disease at Sanatorio Finochietto Hospital, Argentina. Furthermore, he is a trainer for several companies. At present, the total number of TAVR using VitaFlow is nearly 40, and the total number of TAVR has been over 500.