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Fainting, or passing out, is referred to medically as a syncopal episode, or syncope. Syncopal episodes are typically triggered by a sudden, temporary drop in blood flow to the brain, which leads ...
Syncope is due to a temporary reduction in blood flow and therefore a shortage of oxygen to the brain. This leads to lightheadedness or a "black out" episode, a loss of consciousness. Temporary impairment of the blood supply to the brain can be caused by heart conditions and by conditions that do not directly involve the heart.
Syncope is common, but adults over age 80 are at greater risk of hospitalization and death. Younger people without cardiac disease but who've experienced syncope while standing or have specific stress or situational triggers aren't as likely to experience cardiac syncope.
Vasovagal syncope (also called cardio-neurogenic syncope) Vasovagal syncope is the most common type of syncope. It is caused by a sudden drop in blood pressure, which causes a drop in blood flow to the brain. When you stand up, gravity causes blood to settle in the lower part of your body, below your diaphragm.
Syncope is a sudden, temporary loss of consciousness, followed by a fall from a standing or sitting position. A syncope episode is usually short. What causes syncope? Syncope is caused by a decrease in blood flow to the brain. When blood flow to the brain decreases, oxygen to the brain also decreases. Any of the following conditions may cause ...
syncopal: ( sin'kō-păl ), Relating to syncope. Synonym(s): syncopic