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Electrocardiographic characteristics
| ECG parameter | Baseline measurement | On‐therapy measurement | P value |
|---|---|---|---|
| Heart rate (bpm) | 90.5 ± 28.0 | 90.2 ± 20.0 | .51 |
| PR interval (ms) | 163.0 ± 33.0 | 163.0 ± 39.0 | <.001 |
| QRS width (ms) | 84.5 ± 22.0 | 86.5 ± 25.0 | <.001 |
| QT interval (ms) | 340.5 ± 41.7 | 356.3 ± 52.4 | <.001 |
| QTc interval (ms) | 399.5 ± 42.5 | 432.5 ± 54.0 | <.001 |
Variables were presented as mean ± SD.
