Anomalous right subclavian artery and coarctation of the aorta. Surgical implications and the use of the right subclavian artery as a flap.

Coarctation of the aorta was repaired surgically in a 4 month old boy using the anomalous right subclavian artery as a flap. The role of the anomalous artery in providing collateral flow to the descending aorta should be determined so that injudicious clamping is avoided.