What is Wolff-Parkinson-White Syndrome?

Also known as: WPW syndrome, WPW pattern, cardiac arrhythmia, irregular heartbeat, accessory pathway syndrome.

Wolff-Parkinson-White syndrome is a rare disorder of the heart's electrical system, present at birth, where, rather than the electrical signals (those make the heart chambers contract) going down their normal pathway, there is an extra electrical pathway (also called an accessory pathway) between the chambers of the heart.

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Reviewed by: Jack Wolfsdorf, MD

This page was last updated on: 1/29/2019 3:21:13 PM