三尖瓣关闭不全可分为功能性和器质性两种。功能性三尖瓣关闭不全的发病率相当高,显著的三尖瓣关闭不全大多数是功能性的,特别是在重度二尖瓣狭窄伴有肺动脉高压和房颤的患者中。器质性三尖瓣关闭不全属风湿性三尖瓣病变之一,常伴有或多或少的三尖瓣狭窄,因而三尖瓣反流程度减 Tricuspid regurgitation can be divided into two functional and organic. The incidence of functional tricuspid regurgitation is quite high, and most notable tricuspid regurgitation is mostly functional, especially in patients with severe mitral stenosis associated with pulmonary hypertension and atrial fibrillation. Organic tricuspid regurgitation is one of rheumatic tricuspid valve lesions, often accompanied by more or less tricuspid valve stenosis, and thus the degree of tricuspid regurgitation