Transcatheter closure of patent ductus arteriosus with the Amplatzer duct occluder: short-term follow-up.
BACKGROUND
Transcatheter closure of the patent ductus arteriosus is a well established procedure. The objective of this study was to assess the effectiveness and the safety of the Amplatzer duct occluder.


RESULTS
Occlusion of the patent ductus arteriosus was attempted in 23 patients. The median weight was 11.7 Kg (range, 5 kg - 42.4 kg) with a mean ductus diameter of 3.7 mm (range, 1.6 - 7.2 mm). The immediate closure rate was 86% with a closure rate of 100% at 6 months, 1 year and 2 years following device placement. There was one device embolization that occurred immediately following device placement. No patient had aortic narrowing or pulmonary artery stenosis following the procedure.


CONCLUSIONS
The Amplatzer duct occluder is safe and effective in the closure of a patent ductus arteriosus up to 7.2 mm in diameter. Selecting a device at least 12 mm larger than the minimal ductal diameter can minimize embolization.
Sandhu
S K
SK
Pediatric Cardiology, Children's Hospital and Louisiana State University Health Sciences Center, 200 Henry Clay Avenue, New Orleans, LA 70118, USA. ssandh@lsuhsc.edu
King
T D
TD
Troutman
W B
WB
Hixon
R L
RL
Kiel
E A
EA
Bourgeois
K V
KV
D000497:Alloys; D006328:Cardiac Catheterization; D002675:Child, Preschool; D004374:Ductus Arteriosus, Patent / Q000628:therapy*; D004867:Equipment Design; D005500:Follow-Up Studies; D006801:Humans; D007223:Infant; D019736:Prostheses and Implants; D015607:Stents; D013997:Time Factors
D000497:Alloys; C013616:nitinol