In most cases, it is due to structural heart damage caused by conditions like: Ventricular tachycardia can also be the result of conditions that contribute independently to abnormal heart rhythms ...

Ventricular tachycardia refers to a wide QRS complex heart rhythm — that is, a QRS duration beyond 120 milliseconds — originating in the ventricles at a rate of greater than 100 beats per minute.

In Gottfried's case, he had ventricular tachycardia, "which is an abnormal heart rhythm where the rhythm of the heart is generated from the ventricle as opposed to from the atrium," Haythe explains.

"Ventricular tachycardia is an abnormal rapid rhythm arising from the bottom chambers of the heart that can cause significant ...

An idioventricular rhythm is very similar to ventricular tachycardia except the ventricular rate is less than 60 beats per minute. All other characteristics of VT apply; this includes the presence ...