Transcatheter Occlusion Of Ventricular Septal Defects

objective To access the feasibility, effectiveness and safety of transcatheter occlusion of ventricular septal defects. Methods Eight patients, aged 15-44 years, were selected by transthoracic echocardiography. The location of VSD was perimembranous in 8 patients. And 3 patients with aneurysm formation. All cases had no severe pulmonary hypertension and right to left shunt. Membranous VSD underwent transcatheter closure with Amplatzer membranous VSD occluder. Results The VSD diameter ranged from 3.6mm~8.0mm(4.85 ± 1.6mm). The device diameter ranged from 6mm~12mm(7.1±2.1mm). After application of the prosthesis there was no residual shunt in all patients. Ventricular fibrillation accurred in one patient during the procedure. One patient developed grade III atrioventricular block and complete right bundle branch block. And recovered in 3 days. One patient developed slight aortic countercurrent. No other complications were observed. Conclusion The transcatheter closure of VSD appears to be a safe and effective method.