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Ann Thorac Surg. 1991 Jun;51(6):1031-9.

Supravalvar aortic stenosis: a 29-year review of surgical experience.

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Texas Heart Institute, Houston 77225-0345.


Between February 1960 and August 1989, 73 consecutive patients underwent surgical correction for supravalvar aortic stenosis (SVAS) at the Texas Heart Institute. There were 43 male (59%) and 30 female patients (41%) ranging in age from 5 days to 27 years (mean age, 12 years). Preoperatively, 8 patients were in New York Heart Association functional class I, 43 in class II, 18 in class III, and 4 in class IV. Of the 73 patients, 62 had localized SVAS and 11 (15%), diffuse SVAS. For all procedures, patients were placed on cardiopulmonary bypass. Those with localized SVAS were successfully treated with patch aortoplasty, whereas those with diffuse SVAS required either an apicoaortic conduit or extensive end-arterectomy with extended patch aortoplasty. There were eight early deaths (less than or equal to 30 days postoperatively) (11%) and four late deaths (greater than 30 days postoperatively) (6%) in a follow-up period ranging from 2 months to 28 years. Sixteen patients (25%) underwent one or more additional operations in the follow-up period. Postoperatively, there were 44 patients in New York Heart Association functional class I and 17 in class II. Preoperative functional class III and class IV (p less than 0.0005), diffuse SVAS (p = 0.05), and the presence of associated congenital defects (p less than 0.01) were important determinants of death.

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