TRANSCATHETER DEVICE CLOSURE OF SECUNDUM ASD A 10 YEARS EXPERIENCE - A SINGLE CENTRE STUDY

Abstract

Objective: To analyze the results of transcatheter closure of Secundum AtrialSeptal Defect (ASD)with special focus on immediate complications encounteredduring the procedure. Methodology: This cross sectional study was conducted at Armed ForcesInstitute of cardiology / National institute of Heart Diseases from 1st June 2005 to31st August 2015. The participants of the study underwent transcatheter closureof Secundum ASD. All patients were evaluated with 2-D echocardiography beforethe procedure. The age of patients varied from 15 months to 75 years and 60%(n=493) were female. The sizing balloon was used in 4% and generalanaesthesia was given in 55% of patients. Results: Among 822 patients, 96.4% had successful closure of ASD. Theprocedural failure rate was 3.6% (30) which included large defect (19), atrialfibrillation (2) and device embolization (9). In four patients there wasmalpositioning of device that was retrieved and successfully redeployed in stableposition. There was no emergency surgical exploration during this period. Theminor complications including transient arrhythmias were seen in 2.5 %(19)patients and residual leak was also found in one patient. All patients weredischarged home in next morning. No death occurred during this period. Conclusion: Transcatheter device closure of secundum atrial septal defect is aneffective and safe procedure with minimal complications. However it requires acareful assessment of the defect by skilled and professional hands.