[A methodologic variant in transarterial closure of a persistent ductus arteriosus].

The most severe complications in transarterial closure of the ductus arteriosus persistens are problems with placing the plug into the ductus (misfit plug size/ductus size) and the flow of closure materials into the aorta after instable fixation of the plug. In such cases surgical intervention by arteriotomy or aortotomy for the removal of the plug becomes necessary. Transvenous dilatation of the ductus arteriosus persistens after recognizing unstable plus positions or difficulties in fixing the plug prevents the mentioned complications.