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Ann Thorac Surg 1984;37:25-32
© 1984 The Society of Thoracic Surgeons

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Articles

Interruption of the Aortic Arch: Experience in 17 Infants

From the Department of Surgery, Section of Thoracic and Cardiovascular Surgery, Department of Pediatrics, Section of Cardiology, University of Oklahoma Health Sciences Center, Oklahoma City, OK

Between April, 1965, and August, 1982, 17 children ranging in age from 2 days to 4 years were identified as having interruption of the aortic arch and operated on at our institution. There were eight type A interruptions, eight type B interruptions, and one type C interruption. Associated intracardiac anomalies were present in all but 3 patients. These 3 children, who all had type A interruption, underwent repair by mobilization of the aorta and end-to-end reconstruction. The other 14 children had initial palliative operations. The 2 patients in Group 1 had type A interruption with associated ventricular septal defect (VSD), and underwent subclavian artery-aorta anastomosis. In Group 2, the palliative procedure consisted of placement of a Dacron tube graft in 1 patient with type A interruption and associated VSD, and placement of a polytetrafluoroethylene (PTFE) graft, division of the patent ductus arteriosus, and banding of the pulmonary arteries in 11 patients—2 with type A, 8 with type B, and 1 with type C interruption. Ten children (71%) survived initial palliation, 1 of the 2 in Group 1 and 9 of the 12 in Group 2. In Group 2, 5 children had interruption of the aortic arch (4, type B; 1, type C) with associated VSD; among the 4 who survived palliation, 3 subsequently have had successful closure of the VSD and 1 is awaiting closure. Among the patients who had palliative procedures, there are 6 long-term survivors (43%). In the total series, there are 9 long-term survivors (53%).

We conclude that children with isolated type A interruption can undergo repair with mobilization of the aorta and end-to-end reconstruction, while children with interruption of the aortic arch and associated intracardiac anomalies can be palliated initially with PTFE reconstruction of the aorta, division of the patent ductus arteriosus, and pulmonary artery banding. Total repair is dependent on the severity of the associated anomaly. Patients with less complicated intracardiac anomalies, such as isolated VSD, have excellent long-term survival.

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