The surgical approach to the idiopathic hypertrophic subaortic stenosis via the left atrium.
D000293:Adolescent; D001024:Aortic Valve Stenosis / Q000601:surgery*; D006328:Cardiac Catheterization; D002312:Cardiomyopathy, Hypertrophic / Q000175:diagnosis / Q000601:surgery*; D002648:Child; D002932:Cineangiography; D004562:Electrocardiography; D005260:Female; D006325:Heart Atria / Q000601:surgery; D006801:Humans; D006984:Hypertrophy; D008297:Male; D010701:Phonocardiography