Idiopathic Hypertrophic Subaortic Stenosis: III. Intraoperative Studies of the Mechanism of Obstruction and Its Hemodynamic Consequences

Pressures in the left ventricle and central aorta were recorded together with instantaneous aortic blood flow at the time of operation in 9 patients. Four patients had IHSS, 4 had valvular or discrete subvalvular aortic stenosis, and 1 was considered to have a normal aortic valve and left ventricula... View More