Q: I’m confused by the definations of AFib and VFib. Can you explain it in detail?
A:Ventricular fibrillation (VFib) can sometimes be confused with atrial fibrillation (AFib). They have similar symptoms and causes, but still ventricular fibrillation is different from AFib.
Ventricular fibrillation usually begins with ventricular tachycardia, which is an abnormally rapid heart rhythm that originates from a ventricle. Some patients have heart defects and heart attacks may leave scars on the patients’ hearts. It is the very access for abnormal electrical impulses to come into being.
Ventricular fibrillation is caused by defective electrical impulses. During ventricular fibrillation, the ventricles quiver uselessly and pump no blood into the body. In other words, the heart can’t produce effective heartbeats and blood stops flowing around the body, including the brain. Once the muscles and brain can’t receive blood, it is very likely to collapse suddenly or faint, which are the most common signs of this disease. Patients will require immediate, emergency medical assistance, including cardiopulmonary resuscitation (CPR).
VFib is more serious than AFib and frequently results in loss of consciousness and death, because ventricular 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. What’s worse, it can cause sudden cardiac death (SCD).
Diagnosis of ventricular fibrillation is difficult to make in advance. It usually happens in emergency circumstances where patients lose their consciousness.
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