Ventricular fibrillation also called VF or VFib, is a dangerous problem with your heart rhythm (called an arrhythmia) that keeps your heart from pumping blood the way it should. It's a medical ...

Ventricular fibrillation is a life threatening heart condition characterized by a rapid, irregular heartbeat that prevents the heart from effectively pumping blood. Symptoms of VF include fainting and ...

Antiarrhythmic drugs are used commonly in out-of-hospital cardiac arrest for shock-refractory ventricular fibrillation or pulseless ventricular tachycardia, but without proven survival benefit. In ...

SUDDEN death in persons with artificial pacemakers is a continuing and disturbing problem. Causes include pacemaker-catheter displacement, electric-component failure, broken wires and rising pacing ...