Table 2 Comparison of ECG/Holter monitoring parameters before and after carvedilol use
Before | After | P value | |
|---|---|---|---|
ECG parameters | |||
PR interval (ms) | 156.2 ± 23.7 | 163.5 ± 23.9 | 0.285 |
QRS duration (ms) | 92.3 ± 11.0 | 91.9 ± 11.5 | 0.900 |
QTc interval (ms) | 436.9 ± 23.5 | 437.5 ± 49.1 | 0.956 |
Holter monitoring parameters | |||
Minimal heart rate (bpm) | 50.3 ± 8.6 | 49.2 ± 7.2 | 0.645 |
Average heart rate (bpm) | 73.9 ± 11.1 | 69.4 ± 9.6 | 0.135 |
Maximal heart rate (bpm) | 125.2 ± 18.6 | 111.5 ± 15.3 | 0.006 |
Burden of PVC (%) | 10.8 ± 9.0 | 5.9 ± 7.4 | 0.007 |