Causes, Incidence and Risk Factors Ventricular tachycardia is a potentially lethal arrhythmia that may cause the heart to become unable to pump adequate blood through the body.
Ventricular tachycardia can occur spontaneously.
It may be a result of scar tissue formed after an earlier heart attack, or an undesired effect of antiarrhythmic drugs. Torsade de pointes is a form of ventricular tachycardia with characteristic variation in the conduction of the ventricular stimulus. Ventricular tachycardia occurs in approximately 2 out of 10,000 people. In some cases, there are no symptoms. Decreased urine output may also be associated with this disease.