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The Annals of Thoracic Surgery, Vol 50, 407-412, Copyright © 1990 by The Society of Thoracic Surgeons
M Ilbawi, C Cua, S DeLeon, A Muster, M Paul, A Cutilletta, R Arcilla and F Idriss
Repair of complete atrioventricular canal with tetralogy of Fallot was
performed in 9 patients. Ventricular septal defect was closed through the
right atrium using a single polytetrafluoroethylene patch with ample
anterior extension to avoid subaortic obstruction. The atrial septal defect
was closed with a separate patch. Undivided atrioventricular valve leaflets
were sandwiched between the two patches. Right ventricular outflow tract
stenosis was relieved by pulmonary valvotomy and an infundibular patch in
7, a supravalvar patch (none transannular) in 6, and right
ventricle-to-pulmonary artery conduit in 2. There was one hospital death
(1/9, 11%) in a patient with persistent clinically significant
postoperative pulmonary stenosis and low cardiac output requiring
reoperation and right ventricle-to- pulmonary artery conduit insertion.
There was no late mortality. All patients are asymptomatic 0.3 to 5.6 years
after operation. Follow-up right ventricular outflow tract gradient ranged
from 11 to 43 mm Hg and was 70 mm Hg in 1 patient who later had successful
relief of obstruction. Three patients had mitral valve insufficiency; 1
needed reoperation. Aggressive relief of right ventricular outflow tract
stenosis with maintenance of pulmonary valve competence and use of two
separate patches for closure of the septal defects contribute to optimum
immediate and long-term results after repair of this lesion.
ARTICLES
Repair of complete atrioventricular septal defect with tetralogy of Fallot
Children's Memorial Hospital, Department of Surgery and Pediatrics, Northwestern University, Chicago, Illinois.
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