What happened to mitral regurgitation?

The occurrence of mitral regurgitation is related to leaflet injury, annular enlargement, chordae tendineae rupture and other factors. The specific analysis is as follows: 1. Leaflet injury Rheumatic injury, leaflet deformity, leaflet calcification, infective endocarditis and other leaflet injury factors will affect mitral valve function and cause mitral regurgitation. 2. Enlargement of the valve annulus Left ventricular enlargement caused by various factors can cause enlargement of the valve annulus, causing changes in valve shape, resulting in mitral regurgitation 3. Rupture of chordae tendineae Rupture may cause mitral insufficiency, resulting in blood backflow, resulting in mitral regurgitation. The basic causes of tricuspid regurgitation are related to primary causes and secondary causes, and the predisposing factors are related to lifestyle. The specific analysis is as follows: 1. Basic causes 1. Primary causes Rheumatic diseases, endocarditis, congenital Acute tricuspid valve, connective tissue diseases and other factors can affect the function of the tricuspid valve, leading to blood reflux and causing tricuspid regurgitation. 2. Secondary causes Pulmonary artery stenosis, mitral stenosis, pulmonary hypertension and other diseases can also make the heart contract, blood reflux to the right atrium, causing tricuspid regurgitation. 2. Induced factors Long-term alcoholism, irregular diet, endocarditis can occur, involving tricuspid valve, inducing tricuspid regurgitation.