Mitral valve replacement using the toroidal prosthesis.
D000293:Adolescent; D000328:Adult; D000368:Aged; D006328:Cardiac Catheterization; D005500:Follow-Up Studies; D006350:Heart Valve Prosthesis; D006801:Humans; D008875:Middle Aged; D008944:Mitral Valve Insufficiency / Q000601:surgery*; D008946:Mitral Valve Stenosis / Q000601:surgery*; D011183:Postoperative Complications / Q000401:mortality; D013923:Thromboembolism / Q000150:complications; D014693:Ventricular Fibrillation / Q000150:complications