Comparison of ECG measurements obtained in surviving patients and in victims of sudden death
| Survivors | Sudden death | ||||
|---|---|---|---|---|---|
| n | Mean (SD) | n | Mean (SD) | p Value | |
| HR, heart rate; PVC, premature ventricular contraction; VT, ventricular tachycardia. | |||||
| QRS duration (s) | 22 | 0.071 (0.012) | 7 | 0.073 (0.014) | 0.765 |
| QRS axis (degrees) | 22 | 45 (35) | 7 | 57 (12) | 0.622 |
| PR interval (s) | 22 | 0.135 (0.023) | 7 | 0.131 (0.017) | 0.873 |
| QT interval (s) | 22 | 0.405 (0.33) | 7 | 0.422 (0.037) | 0.447 |
| QTc (s) | 21 | 0.400 (0.025) | 7 | 0.405 (0.019) | 0.542 |
| HR (beats/min) | 21 | 59.4 (10.4) | 7 | 56.4 (12.0) | 0.353 |
| PVC QRS duration (s) | 22 | 97.7 (17.7) | 7 | 112.9 (16.0) | 0.047 |
| VT rate (beats/min) | 22 | 190 (29) | 7 | 196 (34) | 0.701 |