For a variety of reasons, something - such as a structural heart defect - causes the heart to beat out of control. This abnormal heart rhythm is known as ventricular fibrillation.
在这多种原因中，一些会导致心跳失常，比如结构性心脏缺陷，这种异常的心律被称作。
2
Objectives: to assess the effects of intravenous magnesium on converting acute onset atrial fibrillation to sinus rhythm, reducing ventricular response and risk of bradycardia.
目的：评价房颤急性发作时静脉镁剂在转复窦性心律、降低心室反应和心动过缓风险方面的作用。
3
Prolonged ventricular repolarization, an electrical conduction anomaly that could lead to heart rhythm abnormalities.