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The Journal of Thoracic and Cardiovascular Surgery, Vol 73, 345-352, Copyright © 1977 by The American Association for Thoracic Surgery and The Western Thoracic Surgical Association

ARTICLES

Surgical correction of types II and III truncus arteriosus

RB Griepp, EB Stinson and NE Shumway

In truncus arteriosus types II and III, one or both pulmonary arteries arise independently from either side of the truncus. In the surgical correction of this anomaly, we have utilized on operative technique in which the essential features are as follows: ventricular septal defect (VSD) closure, which directs left ventricular outflow into the truncus: (2) anastomosis of a Dacron tube containing a glutaraldehyde-preserved procine aortic heterograft to the right ventriculotomy: (3) removal of a circumferential band of the truncus containing both pulmonary artery orifices; (4) tailoring of the band of truncus tissue into a generous cuff which is anastomosed to the distal end of the valved Dacron conduit; and (5) restoration of aortic continuity with a tubular Dacron graft. Since 1971, 4 children ages 2 to 9 years have undergone successful correction of truncus arteriosus types II or III by this technique. In one patient with marked pulmonary hypertension and congestive heart failure preoperatively, the pulmonary vascular resistance had reverted to normal by 3 years after the operation. In one patient in whom bronchial collaterals to the right pulmonary artery were present, postoperative left ventricular failure required reoperation for ligation of the collaterals. All 4 patients are asymptomatic and fully active 5 to 60 months postoperatively. None has evidence of stenosis or insufficiency of the heterograft valve.

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