Table 1. Patient Characteristics (N = 139) Table 1. Patient Characteristics (N = 139)
Variables Variables
Age, years old 53.2 ±1 3.9
Male (n, %) 90 (64.7%)
Hypertension (n, %) 23 (16.5%)
Diabetes (n, %) 11 (7.9%)
Symptom of Palpitation (n, %) 137 (98.6%)
Symptom of Syncope (n, %) 17 (12.2%)
Medication before ablation
Beta blocker or CCB only (n, %) 54 (38.8%)
Class I AAD (n, %) 49 (35.3%)
Amiodarone (n, %) 31 (22.3%)
Clinical VA pattern
Presence of Sustained VT (n, %) 25 (18.0%)
Presence of Non-Sustained VT (n, %) 42 (30.2%)
PVC burden (pre-ablation) (beats/day) 21924 ± 12349
PVC burden (pre-ablation) (%)* 20.6 ± 11.6
LVEF (pre-ablation) (%)* 52.4 ± 11.2
PVC induced cardiomyopathy (n, %) 40 (28.8%)
VA morphology
RBBB morphology (n, %) 46 (33.1%)
Coupling interval 491.4 ± 62.1
QRSd, ms 151.9 ± 24.0
IDT, ms 59.8 ± 21.2
PdW, ms 57.8 ± 20.6
Q-wave aVL/aVR ratio 1.40 ± 0.46
MDI 0.47 ± 0.13
Earliest activation before VA (ms) -35.6 ± 14.3
Multiple site ablation requirement (n, %) 78 (56.1%)
Successful ablation site (n, %)
ASV 49 (35.3%)
Subvalvular 29 (20.9%)
GCV/AIV 43 (30.9%)
Epicardium 18 (12.9%)
Acute procedural success (n, %) 129 (92.8%)
AAD, anti-arrhythmic drug; AIV, anterior Interventricular vein; ASV, aortic sinus of Valsalva; CCB, calcium channel blocker; GCV, great cardiac vein; IDT, intrinsicoid deflection time; LVEF, left ventricular ejection fraction; MDI, maximum deflection index; VA, ventricular arrhythmia; PdW, pseudo-delta wave; VT, ventricular tachycardia; PVC, premature ventricular complex; QRSd, QRS duration; RBBB, right bundle branch block; AAD, anti-arrhythmic drug; AIV, anterior Interventricular vein; ASV, aortic sinus of Valsalva; CCB, calcium channel blocker; GCV, great cardiac vein; IDT, intrinsicoid deflection time; LVEF, left ventricular ejection fraction; MDI, maximum deflection index; VA, ventricular arrhythmia; PdW, pseudo-delta wave; VT, ventricular tachycardia; PVC, premature ventricular complex; QRSd, QRS duration; RBBB, right bundle branch block;