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J Thorac Cardiovasc Surg 1996;112:424-432
© 1996 Mosby, Inc.
SURGERY FOR CONGENITAL HEART DISEASE |
From the Department of Thoracic and Cardiovascular Surgery, Hôpital Laënnec, Paris, France.
Received for publication July 28, 1995 Revisions requested Sept. 13, 1995; revisions received Jan. 17, 1996 Accepted for publication Jan. 23, 1996. Address for reprints: Loïc Lang-Lazdunski, MD, Service de Chirurgie Thoracique et Cardiovasculaire, Hôpital Laënnec, 42 rue de Sèvres, 75007 Paris, France.
Abstract
From June 1988 through June 1994, 20 children with symptomatic tetralogy of Fallot, associated with hypoplastic or stenotic pulmonary arteries in 19 cases, were operated on in our institution. Mean age at operation was 49.5 ± 43 months (ranging from 10 months to 12.5 years). Mean weight was 13.5 ± 6.5 kg (range 6.2 to 30 kg) and mean body surface area was 0.6 ± 0.2 m2. Mean preoperative hematocrit value was 47.6% ± 11.1%, and mean preoperative arterial oxygen saturation ratio was 75.7 ± 9.5. Six patients (30%) had prior systemic–pulmonary arterial shunts. Pulmonary arterial stenoses were congenital or iatrogenic (or both) and were located principally on the left pulmonary artery (63%), on the pulmonary bifurcation (15%), or separately on the left and right pulmonary arteries (21%). In all children the pulmonary arterial tree was repaired with the patient's own pedicled pericardium. Mean follow-up is 36 ± 25.2 months (range 1 to 71 months). Hospital mortality rate was 0%. There was one late death, and two children were lost to long-term follow-up. No child required reoperation. Seventeen children returned for evaluation, consisting of physical examination, electrocardiogram, chest roentgenogram, and Doppler echocardiogram, and 11 underwent late catheterization or magnetic resonance imaging of the chest to evaluate the pulmonary arterial repair. All children were in New York Heart Association class I or II. Right ventricular function was normal by echocardiography in 100% with a mean right ventricular systolic pressure of 39.37 ± 8.4 mm Hg. Mild to moderate pulmonary regurgitation was present in the majority of patients. The results of pulmonary arterial repair were good in 100%. There was no residual stenosis, and we observed uniform enlargement of the repaired pulmonary arteries over a 5-month to 6-year follow-up period. These results are of particular interest inasmuch as other materials previously used for repair of pulmonary arteries do not grow and may even shrink, resulting in residual stenosis. (J THORACCARDIOVASCSURG1996;112:424-32)
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