What is fibrillation of the heart?

Cardiac Fibrillation

- Irregular, rapid electrical signals of the upper chambers of the heart's (atria) disrupt normal contractions causing the heart to be ineffective in pumping blood

- Can be intermittent, lasting a few seconds or minutes (paroxysmal) or continuous (persistent or permanent)

- Most common type is atrial fibrillation (a-fib)