Discussion

Abstract

Dr Jonathan M. Chen (Philadelphia, Pa). The group at Royal Children's and Queensland Hospitals are truly to be commended on an enviable series of more than 1000 arterial switch operations with outstanding results, and certainly since the era of transesophageal echocardiography, congenital surgeons have come a long way in developing safe and reproducible techniques to overcome the challenges of complex coronary transfer. Single coronary, single ostium, double looping, intramural, all these variants had, for the most part, extraordinarily low mortality in this series across 30 years of study.