Ventricular tachycardia
Alternate Names : Wide-complex tachycardia, V tach, Tachycardia - ventricular
Definition
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.
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