Orthoterminal correction of coexisting d-transposition of the great arteries, subpulmonary stenosis, and a complete form of atrioventricular canal.

This report outlines orthoterminal correction in an 8-year-old boy with coexisting d-transposition of the great arteries (d-TGA), subpulmonary stenosis, and a complete form of atrioventricular canal (CAVC). The repair consisted of covering the tricuspid valve and atrial part of the atrioventricular canal with a Dacron patch and inserting a valve-containing conduit between the then isolated right atrium and the pulmonary artery to create a venous outlet. The patient's exercise tolerance has improved remarkably. The arterial oxygen saturation has risen from 86 to 90 per cent. A plea is made to expand the indications for orthoterminal correction to patients in whom the severity of the heart malformation precludes application of well-established methods of surgical repair.