[Transcatheter closure of the congenital cardiac defects: a review and prospect].

A variety of techniques for the transcatheter closure of the congenital cardiac defects have been developed in patent ductus arteriosus, atrial septal defect and ventricular septal defect. Widespread use of these techniques in patients has been, however, limited only to Rashkind's PDA double umbrella occlusion system, Lock's clamshell atrial septal umbrella system and Sideris' "buttoned" device for ASD and PDA. Inherent merits and demerits of these devices were elucidated here and possibility of new device development was discussed.