Table 2

Changes in ECG parameters over time (mean follow up 17 (5) months)

All patients (n=112)Survivors (n=67)Non-survivors (n=45)
Visit 1Visit 2p ValueVisit 1Visit 2p ValueVisit 1Visit 2p Value
HR (beats/min)77 (16)79 (17)0.0575 (15)77 (16)0.0479 (18)81 (18) 0.56
PR interval ( ms)181 (36)182 (35)0.8178 (26)174 (27)0.59190 (50)200 (41) 0.43
QRS duration (ms)115 (26)121 (32)0.0007106 (22)105 (17)0.97133 (25)150 (32)<0.0001
QT interval (ms)392 (52)383 (45)0.1393 (46)381 (43)0.04395 (63)391 (47) 0.86
QTc interval (ms)442 (52)439 (49)0.9438 (47)432 (52)0.62453 (58)454 (42) 0.68
RR interval (ms)815 (185)792 (170)0.1847 (196)809 (145)0.01749 (145)762 (210) 0.61