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Publications

Journal Article Epublish

PubMed: 42087857 DOI: 10.24875/RECICE.M25000526

Heart block after transcatheter septal defect closure in infants under 10 kg: clinical outcomes and management options.

REC Interv Cardiol 8(1):32-37

Authors: Sedef Oksuz, Kaan Yildiz, Rasit Aktas, Muhammed Akif Atlan, Engin Gerceker, Cem Karadeniz, Nazmi Narin

Affiliations

  • Department of Pediatric Cardiology, Izmir City Hospital, Izmir, Turkey Department of Pediatric Cardiology Izmir City Hospital Izmir Turkey.
  • Department of Pediatric Cardiology, SBU Tepecik Training and Research Hospital, Izmir, Turkey Department of Pediatric Cardiology SBU Tepecik Training and Research Hospital Izmir Turkey.
  • Department of Pediatric Cardiology, Katip Celebi University Faculty of Medicine, Izmir, Turkey Department of Pediatric Cardiology Katip Celebi University Faculty of Medicine Izmir Turkey.

Abstract

INTRODUCTION AND OBJECTIVES

This study reviewed the management of heart block following transcatheter device closure of perimembranous ventricular septal defects in pediatric patients.

METHODS

We evaluated the follow-up and treatment of 1 patient who developed complete atrioventricular block and 5 patients who developed left bundle branch block (LBBB) from January 2019 through December 2023 after transcatheter ventricular septal defect closure in our clinic.

RESULTS

All patients who developed heart block weighed less than 10 kg. The only patient who developed complete atrioventricular block was successfully treated with temporary pacing, returning to sinus rhythm. In 2 of the 5 patients with LBBB, conduction disturbances were observed during the procedure, leading to termination without device release. One patient with postoperative LBBB returned to sinus rhythm following steroid therapy, and another one required surgical device removal. The patient with late-onset LBBB is still under close follow-up with serial ECG and echocardiography.

CONCLUSIONS

Heart block after transcatheter closure of perimembranous ventricular septal defect is a serious complication, particularly in young patients with low body weight. Early detection and appropriate management, including procedural interruption, steroid therapy, and surgery when necessary, can lead to favorable outcomes. Careful patient selection and close follow-up are essential to minimize the risk of conduction disturbances.

MeSH

Heart Block, Atrioventricular Block, Heart, Therapeutics, Heart Septal Defects, Ventricular, Steroids, Infant