Repair of aortopulmonary window at left thoracotomy for patent ductus arteriosus.

The inability to differentiate accurately between patent ductus arteriosus and aortopulmonary window may occasionally result in finding an aortopulmonary window while prepared to close a patent ductus arteriosus at left thoracotomy. Anatomic and technical factors now allow aortopulmonary window closure from the left chest using surgical clips in certain selected cases. The successful repair of such a case is presented.