TABLE 1.
Electrocardiogram and AP Parameters in Epicardial Ablation Experiments
Control | Provocative Agents | Epicardial Ablation | |
---|---|---|---|
NS5806 + verapamil* | |||
J-wave arear | 3.07 ± 1.04 | 42.68 ± 5.77† | 5.11 ± 1.06‡ |
Tpeak-Tend, ms | 30.53 ± 5.27 | 115.27 ± 7.05† | 45.18 ± 2.43‡ |
AP notch arear | 4.74 ± 2.10 | 60.05 ± 5.24† | 18.19 ± 2.88‡ |
EDR, ms | 3.6 ± 1.24 | 150.25 ± 18.74† | 36.38 ± 17.18‡ |
TDR, ms | 11.38 ± 3.76 | 107.4 ± 14.91† | 23.4 ± 12.82‡ |
Pinacidil + ajmaline§ | |||
J-wave arear | 2.90 ± 0.48 | 26.75 ± 1.83† | 5.61 ± 3.28‡ |
Tpeak-Tend, ms | 28.65 ± 4.61 | 95.38 ± 9.21† | 31.55 ± 11.99‡ |
AP notch arear | 9.38 ± 2.25 | 54.90 ± 14.93† | 4.56 ± 0.90‡ |
EDR, ms | 8.1 ± 5.64 | 106.2 ± 20.49† | 12.4 ± 9.5‡ |
TDR, ms | 12.33 ± 3.44 | 65.55 ± 18.17† | 4.43 ± 2.49‡ |
All∥ | |||
J-wave arear | 3.0 ± 0.63 | 36.31 ± 4.28† | 5.31 ± 1.35‡ |
Tpeak-Tend, ms | 29.78 ± 3.48 | 107.31 ± 6.2† | 39.73 ± 5.11‡ |
AP notch arear | 6.6 ± 1.65 | 57.99 ± 6.29† | 12.74 ± 2.79‡ |
EDR, ms | 5.4 ± 2.3 | 132.63 ± 14.99† | 26.79 ± 11.21‡ |
TDR, ms | 11.76 ± 2.51 | 90.66 ± 12.84† | 15.81 ± 8.07‡ |
Values are s mean ± SEM.
n = 6.
p < 0.05 versus control.
p < 0.05 versus pre-ablation.
n = 4.
n = 10.
AP = action potential; EDR = epicardial dispersion of repolarization; TDR = transmural dispersion of repolarization; Tpeak-Tend = T wave peak-to-end duration.