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Supraventricular Tachycardia

Supraventricular tachycardia (SVT) is a very fast heartbeat that happens from time to time because of a problem with your heart's electrical system. It may make you feel like your heart is racing, pounding, or out of rhythm. It usually isn't life-threatening, but you may need treatment.

Last Revised: October 9, 2012

Author: Healthwise Staff

Medical Review: Kathleen Romito, MD - Family Medicine

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