OBJECTIVE To study the clinical pattern of subaortic stenosis associated with perimembranous ventricular septal defect. METHODS From January 1979 to June 2000, 36 children with perimembranous ventricular septal defect and fixed subaortic stenosis were followed-up regarding anatomic characteristics, evolvement, and clinical events. RESULTS Age at diagnosis of subaortic stenosis ranged from 6...

OBJECTIVE To document the natural history and surgical outcomes for discrete subaortic stenosis in children. DESIGN Retrospective review. SETTING Tertiary care paediatric cardiology centres. PATIENTS 92 children diagnosed between 1985 and 1998. MAIN OUTCOME MEASURES Echocardiographic left ventricular outflow gradient (echograd), and aortic insufficiency (AI). RESULTS The mean (SEM) ag...

Subaortic stenosis after surgical correction of a partial atrioventricular septal defect is uncommon. When it occurs, it is usually diagnosed 6-8 years after early surgical repair in childhood. We present a female patient who underwent mitral valve cleft repair and closure of a partial atrial septal defect with a Teflon patch at the age of 48 years. Twenty-two years later, she presented with se...

IT IS NOW well appreciated that following a successful valvulotomy for valvular pulmonic stenosis, muscular hypertrophy in the right ventricular outflow tract may persist and be responsible for a significant resistance to right ventricular ejection.'-3 Similar muscular obstruction to the left ventricular outflow has also been noted in patients following surgical relief of discrete valvular or s...