title: Amplatzer angled duct occluder for closure of patent ductus arteriosus larger than the aorta in an infant.
abstract: Transcatheter closure of patent ductus arteriosus (PDA) by Amplatzer duct occluder is the treatment of choice. However, closure of very large ducts in infants with low weight is a challenge for the interventionalist because a large device may obstruct the aorta or left pulmonary artery. Difficulty is also encountered in advancing the device around the curve of the right ventricular outflow tract toward the pulmonary artery; this curve is tight, more or less at a right angle in infants, leading to kinking of the sheath, which increases fluoroscopic time. This is the first reported case of a very large PDA (8.7 mm), larger than the aorta (8.2 mm), successfully closed by an Amplatzer angled duct occluder in an infant weighing 5 kg.
authors.affiliation: Department of Pediatric Cardiology, Children's Heart Care Centre, Sri Jayadeva Institute of Cardiology, Aditi, 44 A, V Main Road, Vijayanagar II Stage, Bangalore 560 040, India. dr_vj@hotmail.com
authors.forename: I B
authors.initials: IB
authors.lastname: Vijayalakshmi
authors.forename: N
authors.initials: N
authors.lastname: Chitra
authors.forename: R
authors.initials: R
authors.lastname: Rajasri
authors.forename: A N
authors.initials: AN
authors.lastname: Prabhudeva
mesh_terms: D001013:Aorta, Thoracic / Q000000981:diagnostic imaging*; D001027:Aortography; D006348:Cardiac Surgical Procedures / Q000379:methods*; D004374:Ductus Arteriosus, Patent / Q000000981:diagnostic imaging / Q000601:surgery*; D005500:Follow-Up Studies; D006801:Humans; D007223:Infant; D008297:Male; D011474:Prosthesis Design; D019919:Prosthesis Implantation / Q000295:instrumentation*