Key result
Baseline QTc dispersion was positively associated with ictal and post-ictal PVCs and post-ictal PACs during and immediately after electroconvulsive therapy.
Why the study?
Does prolonged QTc dispersion on baseline ECG predict arrhythmias during and after electroconvulsive therapy?
Observational
Does prolonged QTc dispersion on baseline ECG predict arrhythmias during and after electroconvulsive therapy?
Baseline QTc dispersion may serve as a valid predictor for arrhythmias during and immediately after electroconvulsive therapy.
May signal higher arrhythmia risk during ECT; leaves open whether QTc dispersion should inform pre-procedure evaluation.
OBJECTIVE: Our objective in this study was to test the hypothesis that prolonged QTc dispersion predisposes to arrhythmias in electroconvulsive therapy (ECT). METHODS AND RESULTS: We measured QTc dispersion on ECT patients' baseline ECG and also measured PVCs and PACs during and for two minutes after ECT seizures. Using Poisson regression analysis, we found that baseline QTc dispersion was positively associated with ictal and post ictal PVCs and with post ictal PACs. CONCLUSIONS: We conclude that QTc dispersion appears to be a valid predictor of arrhythmias.
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Rasmussen et al. (2007) conducted an observational in Patients undergoing electroconvulsive therapy. Baseline QTc dispersion was evaluated on Ictal and post ictal PVCs and PACs. Baseline QTc dispersion was positively associated with ictal and post-ictal PVCs and post-ictal PACs during and immediately after electroconvulsive therapy.
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