Ventricular tachycardia is a super-fast heartbeat that affects the organ's ability to pump blood.

室性心动过速是一种超快的心跳，会影响心脏的泵血能力。

An irregular heartbeat, known medically as ventricular tachycardia, is a major cause of sudden heart attacks worldwide.

心律不齐，医学上称为室性心动过速，是全球突发心脏病的主要原因。

Ventricular tachycardia or V-tach is most commonly caused by a single strong firing site or circuit in one of the ventricles.

室性心动过速或V-tach最常见的原因是一个心室内有强放电部位或电路。

A defibrillator is a machine that delivers a targeted, measured amount of electricity to a heart that is either in something called ventricular fibrillation or ventricular tachycardia.

除颤器是一种机器，它会向处于称为心室颤动或室性心动过速的心脏输送有针对性的、可测量的电量。

When it's hooked up, you'll be able to see the rhythm that the heart is in, you'll be able to tell is that person in ventricular fibrillation or ventricular tachycardia.

当它连接起来时，你就能看到心脏的节律，你就能分辨出那个人是室颤还是室性心动过速。

In rare situations, an ectopic focus can trigger ventricular tachycardia or even ventricular fibrillation, which are more serious arrhythmias where the ventricles beat too quickly to fill up with an adequate amount of blood.

罕见情况下，异位起搏点会引发室性心动过速，甚至是心室纤颤，都是更为严重的心律失常，即心室搏动太快，以至于不能填充足量的血液。