Which is more serious atrial fibrillation or ventricular fibrillation?

Ventricular fibrillation is more serious than atrial fibrillation . Ventricular fibrillation frequently results in loss of consciousness and death, because ventricular arrhythmias are more likely to interrupt the pumping of blood, or undermine the heart’s ability to supply the body with oxygen-rich blood.

Ventricular fibrillation (V-fib) is a dangerous type of arrhythmia, or irregular heartbeat . It affects your heart’s ventricles.

It shows an irregular wide-complex tachycardia with different degrees of QRS widening, consistent with preexcited atrial fibrillation with very fast conduction to the ventricles. At the end of the strip, QRS complexes become smaller and erratic as atrial fibrillation turns into ventricular fibrillation.24 Kas 2015