November 1, 1998
View Full PaperLate Complete Atrioventricular Block Complicating Radiofrequency Catheter Ablation of a Left Posteroseptal Accessory Pathway
Structured PICO
P
Population
1 patient with AV reentrant tachycardia and a left posteroseptal accessory pathway
I
Intervention
Radiofrequency catheter ablation
O
Outcome
Development of complete AV blocksafety
Great care should be taken when performing radiofrequency ablation for a left posteroseptal accessory pathway due to the risk of late permanent complete AV block.
Abstract
A patient with AV reentrant tachycardia underwent radiofrequency catheter ablation for interruption of a left posteroseptal accessory pathway (AP). During the RF current application, he developed transient complete left bundle branch block which lasted for 2 minutes. The following day the patient developed permanent complete AV block. This case indicates that great care should be taken when performing RF ablation for this AP site.