Long-term outcome of transcatheter patent ductus arteriosus closure using Amplatzer duct occluders.

Background: Immediate-, short-, and intermediate-term results of percutaneous patent ductus arteriosus (PDA) closure using Amplatzer duct occluders are excellent. However, long-term results have not yet been reported to date.

Methods: Between September 1996 and April 2002, 64 consecutive patients having isolated PDA with minimal diameter of > or =2 mm underwent percutaneous closure using Amplatzer duct occluders.

Long-term outcome of transcatheter secundum-type atrial septal defect closure using Amplatzer septal occluders.

Objectives: The aim of this study was to assess long-term results of percutaneous closure of secundum-type atrial septal defect (ASD II) using Amplatzer septal occluders (ASO).

Background: Only immediate-, short-, and intermediate-term results of ASO implantation are known so far.

Methods: Between September 1995 and January 2000, 151 patients underwent a successful percutaneous closure of ASD II in our institution.

Transcatheter closure of double atrial septal defects with a single Amplatzer device.

Transcatheter closure of single secundum atrial defects has become the standard of treatment. The purpose of our study was to analyze the results of using a single Amplatzer device for closure of double atrial septal defects. Such defects were diagnosed in 41 out of 363 patients with atrial septal defects (ASDs) closed by transcatheter method.

Transcatheter occlusion of patent ductus arteriosus using a new angled Amplatzer duct occluder: initial clinical experience.

In the present study, we report the initial clinical experience with the new angled Amplatzer duct occluder (ADO) for the percutaneous closure of patent ductus arteriosus (PDA). Percutaneous closure of PDA using standard ADO in infants and in patients with small PDA ampulla is difficult, or even impossible, due to protrusion of the aortic disk into the descending thoracic aorta. The aortic disk of an angled ADO is angled at 32 degrees to the body of the device and concave toward the aorta to prevent protrusion of the disk into the aorta.