ECG features Mean±SD (median) | Overall cohort (n=52) | Aborted SCA event (n=16) | No event (n=36) |
---|---|---|---|
T-wave duration (msec) | |||
Lead V2 | 213±33 (211) | 209±32 (204) | 214±34 (211) |
Lead V5 | 199±46 (194) | 204±40 (203) | 197±49 (193) |
QT duration (msec) | |||
Lead V2 | 415±45 (416) | 411±42 (411) | 417±47 (417) |
Lead V5 | 430±51 (433) | 431±51 (417) | 430±52 (437) |
QTc (msec) | |||
Lead V2 | 420±33 (422) | 427±29 (425) | 418±35 (416) |
Lead V5 | 436±41 (436) | 445±34 (439) | 432±43 (435) |
Tpe Duration (msec) | |||
Lead V2 | 100±13 (100) | 99±14 (96) | 101±13 (100) |
Lead V5 | 96±21 (91) | 96±18 (93) | 96±22 (91) |
Tpe/QT ratio | |||
Lead V2 | 0.24±0.03 (0.24) | 0.24±0.03 (0.24) | 0.24±0.04 (0.24) |
Lead V5 | 0.22±0.04 (0.22) | 0.22±0.05 (0.22) | 0.22±0.04 (0.22) |
T-wave Amplitude (mV) | |||
Lead V2 | 0.49±0.29 (0.43) | 0.34±0.18 (0.32) | 0.55±0.31 (0.52) |
Lead V5 | 0.26±0.24 (0.20) | 0.20±0.14 (0.18) | 0.29±0.27 (0.20) |
Tpe, T peak T end interval; QTc, correct QT interval (Bazetts formula).
SCA, sudden cardiac arrest.