Supraventricular Tachycardia

**Semantic type:** Disease or Syndrome

**Definition:** A disorder characterized by an electrocardiographic finding of a tachycardia which does not originate in the ventricles or His Purkinje system. There is an abnormally high heart rate and QRS complexes are typically narrow, but aberration or preexcitation may be present. (CDISC)

**Synonyms:** - SVT - Supraventricular tachycardia