Discrete subaortic stenosis.
D000790:Angiocardiography; D002312:Cardiomyopathy, Hypertrophic / Q000145:classification / Q000150:complications / Q000175:diagnosis / Q000503:physiopathology / Q000601:surgery; D002648:Child; D002675:Child, Preschool; D004562:Electrocardiography; D006330:Heart Defects, Congenital / Q000150:complications; D006439:Hemodynamics; D006801:Humans; D007223:Infant; D010701:Phonocardiography