Ralph Shabetai, M.D., F.A.C.P.; Sidney Davidson, M.D.
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It is now appreciated that primary myocardial disease is common, frequently causes symptoms, and produces heart failure. Of the hypertrophic types, obstructive cardiomyopathy affecting the outflow tract of the left ventricle is the best known. The possibility that hypertrophic cardiomyopathy may obstruct inflow into the left ventricle and simulate mitral stenosis has been suggested by some authorities on primary myocardial disease, but no case is documented in the literature. Three cases were described in this paper.
All three were women with symptoms of pulmonary congestion referred for mitral valvotomy. In all a loud first heart sound, a rumbling apical diastolic
Shabetai R, Davidson S. Hypertrophic Obstructive Subvalvular Mitral Stenosis.. Ann Intern Med. ;72:783–784. doi: 10.7326/0003-4819-72-5-783_3
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Published: Ann Intern Med. 1970;72(5):783-784.
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