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- W1999063170 abstract "Abstract The results of surgery in 43 patients with idiopathic hypertrophic subaortic stenosis are reported. Twenty-eight patients were male and 15 female; their mean age was 34 years. Dyspnea, angina pectoris and dizziness or syncope were the most common symptoms, in decreasing frequency. Before the operation, 3 patients were in New York Heart Association functional class I, 9 in class II and 31 in classes III and IV. The mean resting peak ventricle-arterial systolic pressure gradient was 77 mm Hg (39 patients), and mean left ventricular end-diastolic pressure was 22 mm Hg (34 patients). The operative mortality rate was 16 percent (7 of 43 patients) for the entire group, but only 8 percent for patients who underwent isolated left ventricular outflow tract myectomy (3 of 36 patients). There were four late sudden deaths. One patient has been lost to follow-up. The remaining 31 patients have been followed up for a mean of 84 months (range 12 to 160 months); 14 patients are in functional class I, 14 in class II and 3 in classes III and IV. Of the symptomatic patients, six are taking propranolol and eight are taking digitalis or diuretic agents, or both. Complications included complete heart block in 5 patients, complete left bundle branch block in 15 and left ventricular aneurysm in 3. Our study, which is one of the largest with the longest postoperative follow-up period, documents that surgery results in good to excellent alleviation of symptoms in survivors. We currently recommend surgery for the symptomatic patient who has not responded to therapy with propranolol." @default.
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- W1999063170 date "1974-12-01" @default.
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- W1999063170 title "Idiopathic hypertrophic subaortic stenosis" @default.
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- W1999063170 doi "https://doi.org/10.1016/0002-9149(74)90702-4" @default.
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