Dilated ascending aorta in neonates with congenital complete heart block: An interesting observation worth exploring

Ascending aorta dilatation has been reported in some cases of congenital complete heart block (CHB). Although maternal autoantibodies are implicated in the causation, the exact mechanism, significance, and management are not fully understood. In this report, we describe dilated ascending aorta in two neonates with congenital CHB and their short-term follow-up results.