An abnormally rapid ventricular rhythm usually in excess of 150 beats per minute. It is generated within the ventricle below the BUNDLE OF HIS, either as autonomic impulse formation or reentrant impulse conduction. Depending on the etiology, onset of ventricular tachycardia can be paroxysmal (sudden) or nonparoxysmal, its wide QRS complexes can be uniform or polymorphic, and the ventricular beating may be independent of the atrial beating (AV dissociation).

Synonyms: Atrioventricular Nodal Re Entrant Tachycardia, Ventricular Tachycardias, Paroxysmal Supraventricular Tachycardia, Ventricular Tachyarrhythmia, Tachyarrhythmia, Ventricular, Nonsustained Ventricular Tachycardia, Ventricular Tachycardia, Idiopathic, Reentrant Tachycardia, Atrioventricular, Atrioventricular Reentrant Tachycardias, Tachycardia, Nonsustained Ventricular, Supraventricular Tachycardia, Paroxysmal, Tachycardia, Idiopathic Ventricular, Ventricular Tachyarrhythmias, Tachycardia, Ventricular, Atrioventricular Reentrant Tachycardia, Ventricular Tachycardia, Nonsustained, Paroxysmal Supraventricular Tachycardias, Nonsustained Ventricular Tachycardias, Tachycardia, Atrioventricular Reentrant, Idiopathic Ventricular Tachycardia, Idiopathic Ventricular Tachycardias, Tachycardia, Paroxysmal Supraventricular, Atrioventricular Nodal Re-Entrant Tachycardia, Ventricular Tachycardia