background: discrete subaortic stenosis (dss) is a progressive condition. controversy still rumbles on as to whether the subaortic membrane causes aortic regurgitation (ar) and whether membrane resection reduces ar severity. we investigated the association between the left ventricular outflow tract peak gradient (lvot-pg) and ar severity preoperatively and changes in ar severity and obstruction...

Brock (1957, 1959) using the term "Functional obstruction of the left ventricle" was the first to describe muscular subaortic stenosis. Since then, a number of reports (Bercu et al., 1958; Morrow and Braunwald, 1959; Brent et a!., 1960; Goodwin et al., 1960; Braunwald et al., 1960; Brachfeld and Gorlin, 1959, 1961; Pare et al., 1961; Boiteau and Allenstein, 1961) have appeared concerning this c...

1. Edwards JE: Pathology of left ventricular outflow tract obstruction. Circulation 31: 583, 1965 2. Deutsch V, Shem-Tov A, Yahini JH, Neufeld HN: Subaortic stenosis (discrete form). Radiology 101: 275, 1971 3. Maclean LD, Culligan JA, Kane DJ: Subaortic stenosis due to accessory tissue on the mitral valve. J Thorac Cardiovasc Surg 45: 382, 1963 4. Sellers RD, Lillehei CW, Edwards JE: Subaortic...

CHEST, 77: 3, MARCH, 1980 obstructive hypertrophic cardiomyopathy and discrete subaortic stenosis, since this abnormality is seen commonly in both conditions. As pointed out by Dr. Glaser, a recent article by Krajcer et al describes a consistent difference in the timing of midsystolic closure of the aortic valve: in each of 22 patients with obstructive hypertrophic cardiomyopathy, midsystolic a...

AIMS Associated left ventricular structures may play a role in progression and recurrence of discrete subaortic stenosis. The availability of a new 3D echocardiography tool, multiplanar review (MPR), allows comprehensive analysis of datasets in infinite planes, and detailed examination of anatomy. We sought to evaluate the role of MPR in defining the morphology of subaortic stenosis. METHODS ...

Discrete subaortic stenosis is a rare, late complication of the surgical repair of congenital heart defects. Secondary subaortic stenosis late after surgical repair of supravalvular aortic stenosis in Williams syndrome has not previously been described. A 20 year-old female patient with Williams syndrome became symptomatic eight years after subaortic membrane resection. A discrete subaortic ste...