Demographics No arrhythmogenic diagnosis (n=221) Arrhythmogenic diagnosis (n=83) P-value
Female (%) 115 (51) 35 (42) 0.139
Age at time of implant, years 58 [36-71] 61 [46-74] 0.107
BMI (kg/m²) 25,4 [22,3-28,7] 25,1 [22,8-28,2] 0.976
Risk factors
Hypertension 78 (35) 34 (41) 0.345
Dyslipidemia 101 (45) 40 (48) 0.668
Diabetes 23 (10) 7 (8) 0.618
Heart failure 9 (4) 4 (5) 0.767
Current smoker 24 (11) 10 (12) 0.757
Ex-smoker 34 (15) 15 (18) 0.557
Baseline ECG characteristics
PR interval 156 [142-176] 166 [143-202] 0.104
1st degree AV block 14 (6) 13 (16) 0.010
QRS duration 94 [84-104] 94 [84-110] 0.801
QTc time 423 [402-440] 423 [394-441] 0.598
Any BBB 18 (8) 12 (14) 0.097
RBBB 15 (7) 8 (10) 0.395
LBBB 3 (1) 4 (5) 0.090
Any QRS conduction abnormality 24 (11) 16 (19) 0.051
RBBB 15 (7) 8 (10) 0.395
LBBB 3 (1) 4 (5) 0.090
NIVCD 6 (3) 4 (5) 0.469
Bifasc. block 5 (2) 2 (2) 1.000
Trifasc. block 1 (1) 1 (1) 0.470
Number of syncope 1 [1-3] 1[1-3] 0.377
Trauma 46 (20) 15 (18) 0.611
Traffic Accident 13 (6) 6 (7) 0.657
During sports 12 (5) 4 (5) 0.840
EP study 138 (61) 43 (51) 0.107
AH interval 110 [94-131] 116 [94-151] 0.373
HV interval 42 [38-50] N=128 46 [40-50] N=38 0.041
Abnormal HV interval (>55 ms) 8 (6) 3 (8) 0.715
SNRT 1053 [918-1250] 1170 [945-1250] 0.432
Wenckebach punt 370 [320-420] 380 [335-423] 0.815
2:1 block 320 [290-370] 330 [290-360] 0.995