Objective: The present study was designed to evaluate the safety and feasibility of transcatheter closure of perimembranous ventricular septal defects (PmVSDs) with dual wire-maintaining technique (DWMT).
Patients/methods: From January 2010 to December 2013, a total of 241 patients (men: 109, women: 132; mean age: 22.2±15.4 years) with congenital PmVSDs were randomised to either the conventional technique (CT) group (n=118) or the DWMT group (n=123).
Results: In the CT group, the track wire was withdrawn before occluder insertion. In the DWMT group, the track wire was maintained in the delivery sheath during the procedure. Both the procedure time and fluoroscope time were reduced significantly in the DWMT group patients who required device replacement compared with CT group patients (median time: 46.0±14.8min vs. 56.0±15.2min, p<0.05; 15.0±11.6min vs. 22.0±10.1min, p<0.05). There was no difference in the incidence of complications between the two groups.
Conclusion: The DWMT is safe and feasible for transcatheter treatment of PmVSDs, especially in patients requiring device replacement, for it avoids reconstruction of the "arteriovenous wire loop", left ventriculography from the contralateral femoral route, or the use of a larger femoral artery short sheath.
Keywords: Dual wire-maintaining technique; Transcatheter; Ventricular septal defect.
Copyright © 2016 Australian and New Zealand Society of Cardiac and Thoracic Surgeons (ANZSCTS) and the Cardiac Society of Australia and New Zealand (CSANZ). Published by Elsevier B.V. All rights reserved.