Remodeling of Sinus Node Function After Catheter Ablation of Right Atrial Flutter

35 patients total: 24 patients (16 men, 8 women; age 68 +/- 11 years) referred for ablation of persistent atrial flutter (duration 8 +/- 11 months) who had abnormal sinus node function post-ablation (CSNRT >= 550 msec), and 11 control patients undergoing pacemaker implantation for sinus node disease without history of atrial dysrhythmias or ablation.

Catheter ablation of persistent right atrial flutter

Control group undergoing pacemaker implantation for sinus node disease without history of atrial dysrhythmias or ablation

Corrected sinus node recovery time (CSNRT) measured at baseline, 48 hours, 14 days, and 3 monthssurrogate