Which factors increase the risk of torsades de pointes in ventricular premature complexes (VPCs)?

Updated: Nov 26, 2016
  • Author: Jatin Dave, MD, MPH; Chief Editor: Jose M Dizon, MD  more...
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VPCs can be exacerbated by catheters in the heart or pacemaker leads. They can occur in response to an antiarrhythmic drug. If they are worsened with an antiarrhythmic drug and the QT is prolonged from the drug, a risk of torsades de pointes exists.

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