Ventricular fibrillation (VFib or VF) and ventricular tachycardia (v-tach or VT) are two types of heart arrhythmia that occur in the heart’s lower chambers called the ventricles. The ventricles ...
When your heart shakes, it's a condition known as ventricular fibrillation (VF), an extremely serious cardiac arrhythmia that poses a life-threatening risk. During a VF episode, the heart's ventricles ...