Hypertrophic Obstructive Cardiomyopathy and its Surgical Treatment

Between 1968 and 1989, 19 patients with hypertrophic obstructive cardiomyopathy have been operated at Turkey's Yüksek İhtisas Hospital. The patients (7 female and 12 male) were between 6 and 55 years of age at the time of operation (mean 26 years). Peak systolic pressure gradients from the left ventricle to aorta ranged from 50 mmHg to 212 mmHg. Surgical treatment was performed in 11 patients with "selective septal" type, in 2 patients with diffuse type, in 6 patient with mixed type. In 7 patients myectomy, in 3 patients myectomy and resection of membrane, in 4 patients myectomy and mitral annuloplasty, in 1 patient myectomy and mitral valve replacement, in 3 patients myectomy and aortic valvotomy, in 1 patient apico-aortic valve conduit were performed. In the early period 2 patients died were performed. In the early period 2 patients died. In a mean follow-up period of 24 months no further fatality was noted.