Results
RF ablation of single chamber map was performed for 61 patients and dual chamber map was performed for 50 patients. The background characteristics are shown in Table 1. There was no statistical difference between these two groups.
Procedure details were also shown in table 1. Acute success was obtained in all patients. Cardiac tamponade need pericardiocentesis was observed in 1 patient during the RV catheter insertion (p=0.2672). Arrhythmia recurrence was observed in 2 patients among single chamber map group and 1 patient among dual chamber map group (p=0.6883).
In the dual chamber mapping group, the number of RF application [1 (1-3) vs 3 (1-6), p=0.0023], RF time [9.2 (2.0-95.7) vs 95.6 (4.1-248.7), p=0.0115], RF energy [248.4 (58.7-3328.2) vs 2867.6 (134.2-7728.4), p=0.0115], fluoroscopy time [19.9 (14.2-26.1) vs 26.5 (17.7-43.4), p=0.0025], fluoroscopy dose [52.5 (31.3-146.0) vs 119.0 (43.7-213.5), p=0.0249] were significantly lower than in single chamber mapping group. No significant difference was observed in procedure time between two groups [165.0 (130.0-198.0) vs 180.0 (139.0-212.0), p=0.2733].