LAUSR

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.