supraventricular tachycardia

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(SVT) a rapid regular heart beat that is usually due to a re-entry circuit between the atria and ventricles in the context of an accessory pathway (see Wolff-Parkinson-White syndrome). It is less commonly due to an ectopic focus in an atrium that is spontaneously discharging at a fast rate (atrial tachycardia).

Subjects: Medicine and Health.

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