A safety maneuver for closure of patent ductus arteriosus

To avoid the risk of cut-thru during ligation or division of a patent ductus arteriosus, a simple maneuver is described to lower the pressure in the aorta and pulmonary artery by manual compression just before clamping or ligating the ductus. To gain sufficient length of the ductus for triple ligation, a technic is described utilizing the adventitia on the aortic end to prevent the linen tape or the silk ligature from slipping on the ductus.