Two types of intraventricular pressure differences within the left ventricle of man are
described. The first is encountered in cases of muscular (or fibrous) subaortic stenosis, in …

Two types of intraventricular pressure difference within the left ventricle of man are
described. The first type was encountered in eight consecutive patients with muscular …

Left ventricular ejection time was correlated with the intraventricular pressure gradient in 35
cases of muscular subaortic stenosis in which simultaneous aortic and left ventricular …

Various pharmacologic agents were administered in 10 cases of muscular subaortic
stenosis at the time of left heart catheterization in an attempt to determine the various factors …

Left ventricular cineangiographic studies in 35 patients with muscular subaortic stenosis
demonstrated a definite sequence of events in systole in this condition. Early systole was …

Amyl nitrite was administered on two occasions to a patient with muscular subaortic
stenosis, to ascertain if selective peripheral vasodilatation would affect the degree of …

To study the effect of respiration and negative intrathoracic pressure on the left ventricular
outflow tract gradient in patients with muscular subaortic stenosis, we studied nine patients …

In 4 patients with muscular subaortic stenosis the left ventricular outflow tract obstruction was
completely reversible from beat to beat with varying cardiac cycle length, being absent in …

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; …

In the presence of valvular aortic stenosis or of discrete subvalvular stenosis, the narrowed
orifice is constant and its size is not altered by changes in the force of ventricular contraction …