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The Journal of Thoracic and Cardiovascular Surgery, Vol 104, 1714-1720, Copyright © 1992 by The American Association for Thoracic Surgery and The Western Thoracic Surgical Association

ARTICLES

Long-term results of survivors of surgical valvotomy for severe aortic stenosis in early infancy

JA Ettedgui, T Tallman-Eddy, WH Neches, E Pahl, JR Zuberbuhler, DR Fischer, LB Beerman and RD Siewers
Cardiology Division, University of Pittsburgh School of Medicine, Pa.

Long-term morbidity and mortality were evaluated in the 21 survivors of a cohort of 51 consecutive infants with severe aortic valve stenosis who underwent surgical treatment in the first 3 months of life during the period from 1958 to 1988. The 21 early survivors have been followed up from 3 to 27 years (median 7.5 years). There have been two late deaths: one at age 13 year from bacterial endocarditis and the other at age 14 years after dislodgment of a prosthetic valve. The calculated 10- year actuarial survival for this group is 100%, with a 15-year actuarial survival of 75% (standard error 15%). Seven repeat operations have been performed in six patients: Three had persistent stenosis and a repeat valvotomy was performed in two of them, aged 2 years and 15 years. The other underwent placement of a conduit from the left ventricle to the descending aorta at 2 years of age. Replacement of the aortic valve has been performed in four patients because of severe valvular insufficiency 13 to 27 years after the initial operation. One of these had required a repeat valvotomy at the age of 15 years. The calculated actuarial freedom from reoperation at 10 years is 90% (standard error 6%) and at 15 years, 67% (standard error 15%). Aortic insufficiency was progressive throughout the period of follow-up. No patient had more than moderate aortic insufficiency 3 to 5 years after the initial valvotomy, whereas aortic insufficiency was severe in five of the eight patients followed up for 11 or more years. Progression of aortic insufficiency and the need for reoperation were not related to the age at initial valvotomy. Survivors of surgical aortic valvotomy in early infancy have a relatively good long-term prognosis and a high freedom from reoperation in the period leading to adolescence. Aortic insufficiency in these patients is progressive, and valve replacement eventually may be required.

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