Discrete subaortic stenosis. surgical experience at the King Fahad heart centre in jeddah

Abstract EN

-Twenty-four consecutive patients with discrete subaortic stenosis were operated on over a seven-year period (1983-1989) at the King Fahad Heart Centre, Jeddah.

Twenty patients (83.3%) had discrete sub-aortic membranes (type I), while 3 patients (16.6%) had fibromuscular tunnels (type II).

There were more adults than children in our series, with a male predominance.

Operation included resection of the subaortic membranes in 21 patients, and left ventricular myectomy in 3 patients.

There was a significant decrease in the intraoperative gradient measured post cardiopulmonary bypass.

Six patients (27.2%) have recently presented with symptoms of recurrence, but none has been reoperated upon.

Operative mortality in this series was 4.5