Surgical Treatment and Post-operative Haemodynamic Studies in Hypertrophic Obstructive Cardiomyopathy.

Since the original description by Brock of functional obstruction of the left ventricle (Brock, 1957) and the pathological appearances described by Teare (1958), many reports of the surgical treatment of hypertrophic obstructive cardiomyopathy (muscular hypertrophic subaortic stenosis) have appeared (Goodwin et al., 1960; Braunwald et al., 1960; Kirklin and Ellis, 1961; Morrow and Brockenbrough, 1961; Wigle, Heimbecker, and Gunton, 1962; Wigle, Chrysohou, and Bigelow, 1963; Cohen et al., 1964; Dobell and Scott, 1964; Kittle, Reed, and Crockett, 1964; Trimble et al., 1964; Cleland, 1964a, b; Bentall, 1964; Swan, 1964). The present paper reports our experience with 12 patients treated surgically between the years 1958 and 1963 and amplifies our original reports (Goodwin et al., 1960; Cohen et al., 1964; Cleland, 1964a, b; Bentall, 1964) by means of post-operative hkmodynamic studies.