DefinitionVentricular tachycardia (VT) is a rapid heartbeat that starts in the ventricles.Alternative NamesWide-complex tachycardia; V tach; Tachycardia - ventricularCauses, incidence, and risk factorsVentricular tachycardia is a pulse rate of more than 100 beats per minute, with at least three irregular heartbeats in a row.The condition can develop as an early or late complication of a heart attack. It may also occur in patients with:CardiomyopathyHeart failureHeart surgeryMyocarditisValvular heart diseaseVentricular tachycardia can occur without Heart disease.Scar tissue may form in the muscle of the ventricles days, months, or years after a heart attack. This can lead to ventricular tachycardia.Ventricular tachycardia can also be caused by:Anti-arrhythmic medicationsChanges in blood che