Alternate Names : Wide-complex tachycardia, V tach, Tachycardia - ventricular
Ventricular tachycardia (VT) is a rapid heartbeat that starts in the ventricles.
Overview, Causes, & Risk Factors
Ventricular tachycardia is a pulse rate of more than 100 beats per minute, with at least 3 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:
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 congenital heart disease or the use of certain medications.