e0537 Occluder dislocation—the severe complication of transcatheter closure of patent ductus arteriosus with pulmonary arterial hypertension

Patent ductus arterious (PDA) is common congenital heart disease in children and infancy, closure of PDA by surgery or interventional cardiac catheterisation is safe now, but those with large and untreated patent ductus arteriosus usually developed pulmonary hypertension in adults, in which the surgery to ligament PDA become a challenge because the high risk of the complication. Recent years some authors have reported that transcatheter closure of patent ductus arteriosus with pulmonary arterial hypertension successfully.1 2 Our group had treated 284 cases of PDA patients by transcatheter since 2001, which included 25 cases with pulmonary arterial hypertension, among them the PDA of 19 cases were closured successfully, 4 cases were abandoned because of the device was not available or the symptoms became worsening in the catheter room, in the other 2 cases the occluder fell of 48 h after operation and caused serious complication, here we reported it.