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.

Characterized by isolated or repetitive bursts of nonsustained VT with left bundle branch block and inferior axis QRS morphology, usually accompanied by palpitations. This arrhythmia commonly ...

However, this type of misclassification usually does not constitute a clinical problem, while post-shock detection of nonsustained VT does. An exception occurs when one iteration of ...