Electrocardiographic measures of repolarisation dispersion in patients with ventricular fibrillation with a previous myocardial infarction with or without inducible sustained monomorphic ventricular tachycardia
| SMVT (−) (n = 20) | SMVT (+) (n = 19) | |
|---|---|---|
| QRS duration | 132 (32) | 131 (24) |
| Repolarisation dispersion | ||
| QTapexD | 58 (20) | 53 (17) |
| QTendD | 61 (30) | 58 (20) |
| JTapexD | 57 (20) | 58 (20) |
| JTendD | 57 (25) | 62 (21) |
| TendD | 46 (16) | 46 (18) |
| QTapexSD | 19 (7) | 18 (7) |
| QTendSD | 20 (12) | 19 (5) |
| JTapexSD | 19 (8) | 19 (7) |
| JTendSD | 19 (10) | 20 (7) |
| TendSD | 16 (6) | 15 (6) |
Values are mean (SD) in ms; p values not significant for any parameter.
D, maximum − minimum of the respective intervals; SD, standard deviation of the respective intervals; SMVT, sustained monomorphic ventricular tachycardia (+) inducible or (−) not inducible in the electrophysiological study.