A patient who had transcatheter closure of a large patent ductus arteriosus in early infancy developed aortic coarctation during follow-up. Initially, balloon angioplasty and subsequent stent implantation successfully relieved the aortic obstruction. Avoidance of use of large devices in small babies and modification of current devices so that they do not cause aortic obstruction may result in better outcomes. Once aortic obstruction develops, transcatheter management is useful in relieving the obstruction.