Coarctation repair in neonates with subclavian-sparing advancement flap.

Abstract

A modification of the technique of using the subclavian-sparing advancement flap for severe coarctation of the aorta was successfully used in 7 neonates ranging in age from 3 to 30 days (mean age, 12 days). Four of the 7 patients had associated cardiac defects with congestive heart failure. The procedure was performed through a left thoracotomy incision, and the coarctation repair was performed by advancing the origin of the left subclavian artery as a flap while preserving flow to the left arm. No deaths occurred, and there was patency of the repair in all patients at follow-up ranging from 1 1/2 to 2 1/4 years (mean, 2 years). In 7 of the 8 patients there was no clinically significant gradient either by examination or Doppler echocardiography at follow-up. One patient underwent balloon angioplasty at the time of catheterization to evaluate other cardiac defects 1 year postoperatively, at which time he was noted to have a peak systolic gradient of 30 mm Hg across the repair site. The technique of subclavian-sparing advancement is a reasonable addition to the surgical armamentarium for coarctation repair in neonates. It provides the advantages of subclavian flap aortoplasty without sacrificing the blood supply to the left arm. Because of the unique anatomic variations associated with coarctation of the aorta, we suggest that the choice of repair be individualized for patients with this condition.