What is the role of antiarrhythmic drugs in the treatment of Wolff-Parkinson-White (WPW) syndrome?

Updated: Jan 08, 2017
  • Author: Christopher R Ellis, MD, FACC, FHRS; Chief Editor: Mikhael F El-Chami, MD  more...
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Answer

Antiarrhythmic drugs act on the AV node, myocardial tissue, or the APs. They work by increasing either conduction velocity or the refractory period (prolonging action potential duration) or by prolonging the conduction time through an AP to prevent perpetuation of an AV reciprocating tachycardia. They may also act to reduce the ventricular response to AF or atrial flutter.


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