Ventricular Tachycardia (VT) By L Brent Mitchell, MD, Libin Cardiovascular Institute of Alberta, University of Calgary Reviewed / Revised Jan 2023 View Patient Education Symptoms and Signs Diagnosis Treatment Key Points Topic Resources Broad QRS ventricular tachycardia Overview of Ventricular Tachycard... Ventricular tachycardia is ≥ 3 consecutive ventricular beats at a rate ≥ 120 beats / minute.