title: Defect closure in the lipomatous hypertrophied atrial septum with the Amplatzer muscular ventricular septal defect closure device: a case series.
abstract: Variations in the anatomy of the atrial septum can confound the transcatheter closure of atrial septal defects and patent foramen ovale. While lipomatous hypertrophy of the atrial septum is not frequently encountered, attempts to use standard atrial septal occlusion devices in such patient can lead to malapposition and continued shunt. Some operators have suggested that atrial septal hypertrophy is a relative contraindication to transcatheter-based closure techniques. We present a novel technique exploiting the features of the Amplatzer muscular ventricular septal defect occluder to treat atrial septal defects in the setting of lipomatous hypertrophy of the atrial septum in two patients.
authors.affiliation: Department of Internal Medicine, Division of Cardiology, Washington University School of Medicine, St. Louis, Missouri, USA. chlin@dom.wustl.edu
authors.forename: C Huie
authors.initials: CH
authors.lastname: Lin
authors.forename: David T
authors.initials: DT
authors.lastname: Balzer
authors.forename: John M
authors.initials: JM
authors.lastname: Lasala
mesh_terms: D006328:Cardiac Catheterization / Q000295:instrumentation*; D006332:Cardiomegaly / Q000150:complications* / Q000000981:diagnostic imaging; D018618:Echocardiography, Doppler, Color; D017548:Echocardiography, Transesophageal; D005260:Female; D054092:Foramen Ovale, Patent / Q000150:complications / Q000000981:diagnostic imaging / Q000628:therapy*; D006344:Heart Septal Defects, Atrial / Q000150:complications / Q000000981:diagnostic imaging / Q000628:therapy*; D006801:Humans; D008068:Lipomatosis / Q000150:complications* / Q000000981:diagnostic imaging; D008875:Middle Aged; D011474:Prosthesis Design; D055989:Septal Occluder Device; D016896:Treatment Outcome