Ventricular tachycardia (VT) is a rapid heartbeat that starts in the ventricles.
Wide-complex tachycardia; V tach; Tachycardia - ventricular
Causes, incidence, and risk factors
Ventricular 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 failure
- Heart surgery
Myocarditis Valvular heart disease
Ventricular 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 medications
- Changes in
blood chemistry(such as a low potassium level)
- Changes in pH (acid-base)
- Lack of enough oxygen
"Torsade de pointes" is a form of ventricular tachycardia that is often due to