Key result
A 55-year-old male developed a rare delayed complete heart block 10 days after radiofrequency ablation for AVNRT, which resolved to normal conduction after 6 weeks.
Case Report (n=1)
No
Delayed complete heart block can occur days to weeks after slow pathway modification for AVNRT and may resolve spontaneously, highlighting the need for close monitoring of patients with transient AV block during the procedure.
May warrant prolonged monitoring after AVNRT ablation with intraprocedural AV block; leaves open incidence and predictors of delayed recovery.
Slow pathway modification has become the mainstay for the treatment of atrio-ventricular nodal re-entrant tachycardia (AVNRT) ablation because of high success rate and low incidence of complications. Our patient had a rare complication of slow pathway modification by radiofrequency ablation (RFA) in form of delayed complete heart block, occurring 10 days after the procedure and resolving in 6 weeks to normal conduction. Complete AV block is a rare immediate complication of RFA but can present weeks later. Transient atrio-ventricular (AV) block during the procedure is seen in all patients who develop delayed AV block and these patients should be monitored closely.
No takes yet. Share an insight, caveat, or question.
Shailesh et al. (2014) conducted a case report in Atrio-ventricular nodal re-entrant tachycardia (AVNRT) (n=1). Radiofrequency ablation (RFA) for slow pathway modification was evaluated on Delayed complete heart block. A 55-year-old male developed a rare delayed complete heart block 10 days after radiofrequency ablation for AVNRT, which resolved to normal conduction after 6 weeks.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: