Figure 1. Temporary transvenous pacemaker set at 100 bpm. The patient’s intrinsic rate overrides the paced rate (black arrow). Four consecutives intrinsic beats at 115 bpm with a QTc-interval of 602 ms triggered recurrent TdP (white arrow).
| Cardiology Research, ISSN 1923-2829 print, 1923-2837 online, Open Access |
| Article copyright, the authors; Journal compilation copyright, Cardiol Res and Elmer Press Inc |
| Journal website https://www.cardiologyres.org |
Case Report
Volume 3, Number 1, February 2012, pages 34-36
Failure to Treat Torsades de Pointes
Figure
Table
| Factor | Mechanisms |
|---|---|
| Maintenance of aggravating drugs | QT-interval prolongation |
| Uncorrected electrolyte disturbance | QT-interval prolongation |
| Ischemia | Increased dispersion of repolarization |
| Uncorrected bradycardia | QT-interval prolongation |
| Inadvertent failure of pacing by inappropriate rate setting | Intrinsic rate will prevail with no resolution of QT prolongation |