Surgical resection in idiopathic hypertrophic subaortic stenosis with a combined approach through aorta and left ventricle.
The operative technique and the immediate and long-term results are described in 49 patients who have undergone myectomy for IHSS. There was a 4 percent early and 12 percent late mortality rate and surviving patients have been followed for up to 13 years. The operation has resulted in a striking symptomatic improvement in most patients in association with relief of outflow obstruction and mitral regurgitation. Chronic atrial fibrillation was poorly tolerated but has not occurred as a late complication in any of the patients operated upon.
D000293:Adolescent; D000328:Adult; D000368:Aged; D001013:Aorta, Thoracic / Q000601:surgery; D001020:Aortic Stenosis, Subvalvular / Q000000981:diagnostic imaging / Q000601:surgery*; D001145:Arrhythmias, Cardiac / Q000401:mortality; D002312:Cardiomyopathy, Hypertrophic / Q000601:surgery*; D002648:Child; D002675:Child, Preschool; D004562:Electrocardiography; D005260:Female; D005500:Follow-Up Studies; D006333:Heart Failure / Q000401:mortality; D006352:Heart Ventricles / Q000000981:diagnostic imaging / Q000601:surgery; D006439:Hemodynamics; D006801:Humans; D002542:Intracranial Embolism and Thrombosis / Q000401:mortality; D008297:Male; D008722:Methods; D008875:Middle Aged; D008944:Mitral Valve Insufficiency / Q000000981:diagnostic imaging; D008946:Mitral Valve Stenosis / Q000000981:diagnostic imaging; D009203:Myocardial Infarction / Q000401:mortality; D011183:Postoperative Complications / Q000000981:diagnostic imaging / Q000401:mortality; D011859:Radiography