Encyclopedia Home / V / Ventricular tachycardia

Ventricular tachycardia

  • Alternative Names

    Wide-complex tachycardia; V tach; Tachycardia - ventricular


    If the heart rate during a ventricular tachycardia episode is very fast or lasts longer than a few seconds. There may be symptoms such as:

    • Chest discomfort (angina)
    • Fainting (syncope)
    • Light-headedness or dizziness
    • Sensation of feeling the heart beat (palpitations)
    • Shortness of breath

    Note: Symptoms may start and stop suddenly. In some cases, there are no symptoms.

    Signs and tests

    Signs include:

    • Absent pulse
    • Loss of consciousness
    • Normal or low blood pressure
    • Rapid pulse

    Ventricular tachycardia may be seen on:

    • Continuous ambulatory electrocardiogram (Holter monitor)
    • ECG
    • Intracardiac electrophysiology study (EPS)
    • Loop recorder

    Blood chemistries and other tests may be done.