Key result
Left atrial posterior wall radiofrequency ablation guided by an ablation index ≤350 resulted in a 14% incidence of esophageal thermal injury, comparable to historic non-AI-guided controls.
Why the study?
Using a prespecified target ablation index to guide radiofrequency ablation at the posterior left atrial wall may affect collateral damage such as esophageal thermal injury.
Does radiofrequency ablation guided by prespecified ablation index cause acute thermal esophageal injury in patients undergoing first atrial fibrillation ablation?
Observational (n=211)
Does radiofrequency ablation guided by prespecified ablation index cause acute thermal esophageal injury in patients undergoing first atrial fibrillation ablation?
Left atrial posterior wall radiofrequency ablation adopting an ablation index ≤350 is associated with a 14% incidence of esophageal thermal injury, which is comparable to historical non-ablation index-guided approaches.
No takes yet. Share an insight, caveat, or question.
Thermal esophageal injury persists with ablation index–guided posterior wall ablation; leaves open whether refined targets reduce risk versus conventional approaches.
Halbfaß et al. (2019) conducted an observational in Atrial fibrillation (n=211). Ablation index-guided radiofrequency ablation vs. Historic control groups with non AI-guided AF ablation was evaluated on Endoscopically detected esophageal thermal lesion (EDEL). Left atrial posterior wall radiofrequency ablation guided by an ablation index ≤350 resulted in a 14% incidence of esophageal thermal injury, comparable to historic non-AI-guided controls.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: