Gould L, Gopalaswamy C
Angiology. 1984 May;35(5):290-9. doi: 10.1177/000331978403500505.
Mitral valve prolapse is a very common condition. It occurs in 4-5% of the population. It may be idiopathic or associated with a number of other conditions. Myxomatous degeneration is the underlying mechanism of mitral valve prolapse. Most patients with mitral valve prolapse have no symptoms. When symptoms do occur, palpitations, chest pain and dyspnea are the major complaints. The midsystolic click occasionally followed by the late systolic murmur are the typical physical findings. The echocardiogram plays a big role in the diagnosis of mitral valve prolapse. The beta blockers are used in the treatment of the symptomatic patient.
二尖瓣脱垂是一种非常常见的病症。它在4%至5%的人群中出现。它可能是特发性的，也可能与许多其他病症相关。黏液样变性是二尖瓣脱垂的潜在机制。大多数二尖瓣脱垂患者没有症状。当出现症状时，心悸、胸痛和呼吸困难是主要症状。收缩中期喀喇音偶尔伴有收缩晚期杂音是典型的体格检查发现。超声心动图在二尖瓣脱垂的诊断中起很大作用。β受体阻滞剂用于有症状患者的治疗。
