title: Failure of devices used for closure of atrial septal defects: mechanisms and management.
abstract: Various devices for transcatheter ASD closure are undergoing clinical trials. Each new device claims advantages in terms of safety and efficacy over earlier devices. We report three cases in which a new investigational device--the Das angel wings--failed. Emergency operations were necessary for device retrieval and defect closure. The possible mechanisms of the event and the options in management are discussed with a review of literature on all devices.
authors.affiliation: Department of Cardiovascular and Thoracic Surgery, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Lucknow, India.
authors.forename: S K
authors.initials: SK
authors.lastname: Agarwal
authors.forename: P K
authors.initials: PK
authors.lastname: Ghosh
authors.forename: P K
authors.initials: PK
authors.lastname: Mittal
mesh_terms: D000328:Adult; D006328:Cardiac Catheterization; D006348:Cardiac Surgical Procedures / Q000295:instrumentation; D004867:Equipment Design; D004868:Equipment Failure; D005260:Female; D006344:Heart Septal Defects, Atrial / Q000601:surgery*; D006801:Humans; D019736:Prostheses and Implants