Temporary loss of consciousness that results from various medical conditions affecting the cardiovascular or neurological system. Black-out spell that may be caused by to cardiac arrhythmias in others.
Partial or complete loss of consciousness with interruption of awareness of oneself and ones surroundings. When the loss of consciousness is temporary and there is spontaneous recovery, it is referred to as syncope or, in nonmedical quarters, fainting . Syncope accounts for one in every 30 visits to an emergency room. It is pronounced sin-ko-pea. See the entire definition of Syncope
Fainting, or feeling as if one might faint, can be caused by serious heart rhythm disorders and needs to be evaluated carefully. Sometimes the cause is not heart related, for instance when low blood sugar is to blame, but still can be dangerous. No matter what the cause, fainting can be dangerous simply because of the potential for injuries from falling.
Syncope (commonly referred to as fainting) is a loss of consciousness induced by a temporarily insufficient flow of blood to the brain. It occurs in otherwise healthy people and may be caused by an emotional shock, by standing for prolonged periods, by injury or by profuse bleeding. An attack comes on gradually, with lightheadedness, sweating and blurred vision. Recovery is normally prompt and without any persisting ill effects.