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In this issue of the Journal, Kannappan et al.1 have investigated for the presence of discrete subaortic membrane in hypertrophic cardiomyopathy (HCM) patients. They screened 466 HCM patients in their… Click to show full abstract
In this issue of the Journal, Kannappan et al.1 have investigated for the presence of discrete subaortic membrane in hypertrophic cardiomyopathy (HCM) patients. They screened 466 HCM patients in their institution and identified 15 (3%) patients with discrete subaortic membrane. Of the 15 patients, seven had left ventricular (LV) outflow tract obstruction secondary to a membrane in the absence of systolic anterior motion of the anterior mitral leaflet (SAM), while eight patients had LV outflow obstruction at two levels: at the discrete subaortic membrane and at the SAMseptal contact. The membrane was about 1.5 cm below the aortic valve. This report raises several questions and provides some answers:
Journal Title: Echocardiography
Year Published: 2017
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