Conduction abnormalities post alcohol septal ablation for hypertrophic cardiomyopathy - A single center experience

Indian Heart J. 2021 Nov-Dec;73(6):743-745. doi: 10.1016/j.ihj.2021.10.005. Epub 2021 Oct 21.

Abstract

Conduction abnormalities are commonly noted after alcohol septal ablation (ASA). This was a retrospective, observational study where we studied the incidence of new onset conduction abnormalities post ASA. 23 patients, who underwent ASA over a period of 5 years, were included in the study. Baseline conduction abnormalities were noted in 26% patients (n = 6). Transient complete heart block (CHB) was noted in 21.7% (n = 5) whereas new onset right bundle branch block (RBBB) was seen in 60.8% (n = 14). Left bundle branch block was uncommon (4.3%,n = 1). Permanent pacemaker implantation was done in 4.3% (n = 1) for CHB. Conduction anomalies are frequent after ASA with RBBB being most common.

Keywords: Alcohol septal ablation; Complete heart block; Hypertrophic cardiomyopathy.

Publication types

  • Observational Study

MeSH terms

  • Bundle-Branch Block / diagnosis
  • Bundle-Branch Block / epidemiology
  • Bundle-Branch Block / etiology
  • Cardiac Conduction System Disease
  • Cardiomyopathy, Hypertrophic* / diagnosis
  • Cardiomyopathy, Hypertrophic* / epidemiology
  • Ethanol
  • Heart Septum* / surgery
  • Humans
  • Treatment Outcome

Substances

  • Ethanol