What are the risk factors for inadvertent atrioventricular block during radiofrequency catheter ablation?
Inadvertent atrioventricular block during radiofrequency catheter ablation is linked to specific ablation targets (anterior/midseptal accessory pathways, AV nodal reentry) and institutional inexperience.
Inadvertent atrioventricular block may occur during or late after radiofrequency catheter ablation. It is associated with ablations for (1) anterior and midseptal accessory pathways and atrioventricular nodal reentry and (2) relative institutional inexperience.
Schaffer et al. (Sun,) studied this question.