Atrioventricular conduction delay during coronary sinus pacing may serve as an early sign of right coronary artery damage during radiofrequency ablation of the cavotricuspid isthmus.
Case Report
Radiofrequency ablation of the cavotricuspid isthmus is the first-line treatment for typical atrial flutter. Despite the close proximity of the right coronary artery (RCA) to the cavotricuspid isthmus, only four cases of arterial injury have been reported during radiofrequency ablation, all detected postablation by inferior ST elevation. Here, we report atrioventricular (AV) conduction delay during coronary sinus pacing as a possible early sign of RCA involvement and review the previous literature on RCA damage and variations of AV nodal circulation.
Caldwell et al. (Mon,) conducted a case report in Typical atrial flutter. Radiofrequency ablation of the cavotricuspid isthmus was evaluated on Right coronary artery damage and AV conduction delay. Atrioventricular conduction delay during coronary sinus pacing may serve as an early sign of right coronary artery damage during radiofrequency ablation of the cavotricuspid isthmus.