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Article
June 1968

Subaortic Stenosis Simulating Coronary DiseaseReport of Two Patients Presenting Problems in Differential Diagnosis

Author Affiliations

Portsmouth, Va

From the Cardiopulmonary Function Laboratory, Department of Medicine, US Naval Hospital, Portsmouth, Va. Dr. Peter is now an associate in medicine with the Cardiovascular Laboratory, Duke University Medical Center, Durham, NC.

Arch Intern Med. 1968;121(6):564-567. doi:10.1001/archinte.1968.03640060078015
Abstract

It is not unusual for patients with arteriosclerotic heart disease and angina pectoris to have an apical late-systolic heart murmur secondary to papillary muscle dysfunction.1 Patients with hypertrophic muscular subaortic stenosis also have angina-like pains,2 an apical systolic murmur resembling that of mitral regurgitation,3 and an electrocardiogram which suggests myocardial infarction.4 These two different afflictions, coronary artery disease and hypertrophic muscular subaortic stenosis, may well mimic each other and be difficult to separate clinically. Therefore, one might expect to find individuals being treated for arteriosclerotic heart disease, who in reality have hypertrophic muscular subaortic stenosis. Two such patients are reported.

Patient Summaries 

Patient 1.  —A 41-year-old white man was given a medical discharge from the Armed Forces in July 1964 at the age of 39 for arteriosclerotic heart disease with angina pectoris and mitral insufficiency. At that time, he had had a heart murmur for at

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