Late complete atrioventricular block after transcatheter perimembranous ventricular septal defect closure with the KONAR-MF™ VSD occluder: a case report and systematic review

Cardiol Young. 2024 Oct 30:1-4. doi: 10.1017/S1047951124026891. Online ahead of print.

Abstract

The soft nitinol KONAR-MF™ ventricular septal defect (VSD) Multifunctional Occluder (MFO) device is increasingly used for transcatheter perimembranous ventricular septal defect closure. We report for the first time a case of delayed complete atrioventricular block with pacemaker implantation 20 months post-procedure. Through a systematic review, the overall rate of persistent complete atrioventricular block was 0.6% with this device, but follow-up duration was limited.

Keywords: CHD; arrhythmia; heart failure; high-grade block; left-right shunt; percutaneous.