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].