title: Clinical impact of transcatheter closure of secundum atrial septal defects with the double umbrella device.
abstract: The clinical impact of transcatheter closure of the isolated secundum atrial septal defect was reviewed. Closure by echocardiographic evaluation was 23 +/- 14% at 6 months, 49 +/- 16% at 2 years, and 64 +/- 16% at 4 years, and right ventricular end-diastolic dimensions in patients without residual shunts did not differ significantly from those with residual shunts.
authors.affiliation: Department of Pediatrics, The University of Toronto School of Medicine, The Hospital for Sick Children, Ontario, Canada.
authors.forename: R N
authors.initials: RN
authors.lastname: Justo
authors.forename: D G
authors.initials: DG
authors.lastname: Nykanen
authors.forename: C
authors.initials: C
authors.lastname: Boutin
authors.forename: B W
authors.initials: BW
authors.lastname: McCrindle
authors.forename: R M
authors.initials: RM
authors.lastname: Freedom
authors.forename: L N
authors.initials: LN
authors.lastname: Benson
mesh_terms: D000293:Adolescent; D006328:Cardiac Catheterization / Q000295:instrumentation; D002648:Child; D002675:Child, Preschool; D017548:Echocardiography, Transesophageal; D006344:Heart Septal Defects, Atrial / Q000000981:diagnostic imaging / Q000503:physiopathology / Q000628:therapy*; D006439:Hemodynamics; D006801:Humans; D019736:Prostheses and Implants; D012189:Retrospective Studies; D016019:Survival Analysis; D016896:Treatment Outcome