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2. What is Ventricular Tachycardia?

V-fib usually starts with ventricular tachycardia, which occurs when the electrical impulses in the ventricles allow the heart to beat too fast. Sometimes the ventricles beat out of sync with the atria during ventricular tachycardia. When this happens, the ventricles don't have time to fill with blood, resulting in an inadequate amount reaching the rest of the body. Ventricular tachycardia may last a few seconds or much longer, and it can result in sudden cardiac arrest. Ventricular tachycardia typically occurs in people who have other heart conditions such as structural heart disease.

causes of Ventricular fibrillation

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