二尖瓣脱垂(Mitral valve prolapse,MVP)是指二尖瓣叶在心脏收缩期间向左心房隆起的一种病理综合征。其名称不少,如 Barlow 综合征,二尖瓣粘液瘤样变性,二尖瓣卡嗒杂音综合征,头巾状二尖瓣,二尖瓣塌陷等。虽然 MVP 引起猝死较为少见,然而在临床研究及病理学和法医学尸检中曾不断有报告。由于 MVP 可以引 Mitral valve prolapse (MVP) is a pathological syndrome of mitral valve leaflets that lump to the left atrium during systole. The name of many, such as Barlow syndrome, mitral myxoid degeneration, mitral valve click noise syndrome, scarf-like mitral valve, mitral valve collapse and so on. Although MVP is relatively rare and causes sudden death, it has been repeatedly reported in clinical and pathological and forensic autopsy studies. Because MVP can quote