title: Mitral regurgitation: clinical patterns, pathophysiology and natural history.
mesh_terms: D000293:Adolescent; D000328:Adult; D000367:Age Factors; D000368:Aged; D001281:Atrial Fibrillation / Q000150:complications; D002648:Child; D002675:Child, Preschool; D002815:Chordae Tendineae; D004697:Endocarditis, Bacterial / Q000150:complications; D005260:Female; D006801:Humans; D007223:Infant; D008297:Male; D008875:Middle Aged; D008944:Mitral Valve Insufficiency / Q000150:complications / Q000209:etiology / Q000473:pathology / Q000503:physiopathology* / Q000601:surgery; D008946:Mitral Valve Stenosis / Q000150:complications; D009203:Myocardial Infarction / Q000150:complications; D010210:Papillary Muscles; D012214:Rheumatic Heart Disease / Q000150:complications; D012422:Rupture, Spontaneous; D012737:Sex Factors