Open mitral valvulotomy.
D000328:Adult; D000368:Aged; D002114:Calcinosis / Q000150:complications; D002140:California; D006328:Cardiac Catheterization; D004617:Embolism / Q000209:etiology; D005260:Female; D006801:Humans; D008297:Male; D008722:Methods; D008875:Middle Aged; D008946:Mitral Valve Stenosis / Q000473:pathology / Q000601:surgery*; D011183:Postoperative Complications / Q000401:mortality; D011652:Pulmonary Circulation; D012737:Sex Factors