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Table 2 Baseline procedural characteristics of the study population

From: Catheter ablation of atrial fibrillation in Korea: results from the Korean Heart Rhythm Society Ablation Registry for Atrial Fibrillation (KARA)

Variables Total (N = 2402)
First-time ablation 2132 (88.8%)
Redo ablation 270 (11.2%)
Energy source
 Radiofrequency 2212 (92.1%)
 Cryoenergy 190 (7.9%)
Mode of sedation
 No sedation 74 (3.1%)
 Deep sedation 1939 (80.7%)
 General anesthesia 389 (16.2%)
Start rhythm1
 SR 1265 (52.7%)
 AF/AT 1137 (47.3%)
Procedure time (min) 197.6 ± 90.2
Ablation time (min) 57.4 ± 42.0
Fluoroscopic time (min) 33.8 ± 27.0
  1. Categorical data are expressed in frequency (percentage) and continuous data are expressed in mean ± standard deviation
  2. 1Starting rhythm is the ECG rhythm at the beginning of the first energy application
  3. AF, atrial fibrillation; AT, atrial tachycardia; SR, sinus rhythm