Greenwood R D
Clin Pediatr (Phila). 1984 Jun;23(6):318-20. doi: 10.1177/000992288402300602.
Mitral valve prolapse is a common finding in the pediatric population. Five percent (154/3100) of pediatric patients had clinical evidence of mitral valve prolapse. A positive family history and minor abnormalities on electrocardiograms were frequent. The vast majority of patients were asymptomatic and exhibited a benign clinical course.
二尖瓣脱垂在儿科人群中是一种常见的发现。5%（154/3100）的儿科患者有二尖瓣脱垂的临床证据。家族史阳性和心电图轻微异常很常见。绝大多数患者无症状，临床病程呈良性。
