Transcatheter closure of secundum atrial septal defects using the new self-centering amplatzer septal occluder: initial human experience.

Transcatheter closure of secundum atrial septal defect (ASD) using clamshell or buttoned devices is accompanied by a high incidence of residual shunt. Recently, a new self-centering device, the Amplatzer septal occluder (ASO), has been evaluated in an animal model with very good results. Therefore, ... View More