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Abstracts |

Treatment of Hypertrophic Muscular Subaortic Stenosis by Septectomy.

Robert D. Bloodwell, M.D.; Robert D. Leachman, M.D.; Grady L. Hallman, M.D.; Don W. Chapman, M.D., F.A.C.P.; and Denton A. Cooly, M.D.
Ann Intern Med. 1967;66(5):1033-1034. doi:10.7326/0003-4819-66-5-1033_3
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Although the pathogenesis of muscular subaortic stenosis remains obscure and hemodynamic alterations remain in controversy, most observers regard this lesion as a well-established clinical entity. The wide spectrum of symptomatic and physiologic involvement leads to difficulty in developing methods of selecting patients for surgical therapy and evaluating results. Many successful operations have been reported that reduce the gradient across the left ventricular outflow, leading to relief of congestive failure, syncope, and angina. Previous direct techniques such as simple myotomy or excision of subvalvular myocardium by a transaortic approach have not been entirely satisfactory.

Results of operative treatment of 26 patients

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