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Ann Thorac Surg 1984;38:157-161
© 1984 The Society of Thoracic Surgeons

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Articles

Results with the Two-Patch Technique for Repair of Complete Atrioventricular Septal Defect

Divisions of Cardiopulmonary Surgery and Pediatric Cardiology, State University of New York, Upstate Medical Center, Syracuse, NY

Accepted for publication February 3, 1984.

^* Address reprint requests to Dr. Bove, Department of Surgery, State University of New York, Upstate Medical Center, 750 E Adams St, Syracuse, NY 13210

From May, 1982, to September, 1983, 9 patients underwent repair of complete AV septal defect. They ranged in age from 11 months to 48 months and in weight from 5.3 kg to 16.5 kg. Seven patients were 24 months old or less. Previous operations included pulmonary artery banding in 1 patient and ligation of a patent ductus arteriosus with repair of coarctation in another. All patients had large left-to-right shunts (mean pulmonary to systemic flow ratio, 3.1), and the 7 young infants had marked pulmonary hypertension. Mitral regurgitation was absent in 2 patients, mild in 3, moderate in 2, and severe in 2. One patient had the right ventricular dominant form of complete AV septal defect. In all instances, repair was done using separate ventricular and atrial patches. Leaflet tissue was not divided, and a trileaflet mitral valve was left in each patient.

Eight patients survived operation and are well 3 to 17 months after repair. The single operative death occurred in the patient with right ventricular dominance. Only 1 patient has mild residual heart failure 4 months after operation. Clinically, mitral regurgitation is absent in 4 patients and, at most, mild in the other 4. No patient has a conduction disturbance. Repair of complete AV septal defect is facilitated by using separate patches for the ventricular and atrial components of the defect. Less distortion is created, and a more accurate reconstruction of a competent trileaflet mitral valve can be done.

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