title: Early malfunction of polyvinyl alcohol membrane of septal occluder.
abstract: Percutaneous device closure of atrial septal defect (ASD) is now considered the choice of treatment. Numerous devices with advantages/disadvantages are currently available and under development. Cardia Ultrasept II ASD occluder has a nitinol frame covered with polyvinyl alcohol (PVA) membrane. Here, a well-documented case of early malfunction of PVA membrane detected in the first week of implantation in a 4-year-old male patient, who underwent an uneventful device closure with 20 mm Cardia Ultrasept II ASD Occluder, is presented. One week after implantation left-to-right shunt through the device was detected and the explantation of device revealed PVA membrane with multiple perforations.
authors.affiliation: Department of Pediatric Cardiology, Fellow in Pediatric Cardiology, Ankara University, Medical School, Ankara, Turkey.
authors.forename: Mehmet G
authors.initials: MG
authors.lastname: Ramoğlu
authors.affiliation: Department of Pediatric Cardiology, Associate Professor in Pediatric Cardiology, Ankara University, Medical School, Ankara, Turkey.
authors.forename: Tayfun
authors.initials: T
authors.lastname: Uçar
authors.affiliation: Department of Pediatric Cardiology, Professor in Pediatric Cardiology, Ankara University, Medical School, Ankara, Turkey.
authors.forename: Ercan
authors.initials: E
authors.lastname: Tutar
mesh_terms: D000497:Alloys; D006328:Cardiac Catheterization / Q000009:adverse effects / Q000295:instrumentation*; D002675:Child, Preschool; D003326:Coronary Circulation; D018618:Echocardiography, Doppler, Color; D006344:Heart Septal Defects, Atrial / Q000000981:diagnostic imaging / Q000503:physiopathology / Q000628:therapy; D006801:Humans; D008297:Male; D008567:Membranes, Artificial; D011142:Polyvinyl Alcohol; D011474:Prosthesis Design; D011475:Prosthesis Failure; D012039:Regional Blood Flow; D055989:Septal Occluder Device; D013997:Time Factors; D016896:Treatment Outcome
chemical_list: D000497:Alloys; D008567:Membranes, Artificial; C013616:nitinol; D011142:Polyvinyl Alcohol
keywords: ASD closure; complication; perforation; polymers