What happens during a syncopal episode?
Syncopal episodes are typically triggered by a sudden, temporary drop in blood flow to the brain, which leads to loss of consciousness and muscle control. The person then falls down or over, which allows blood flow to return to the brain. Returning blood flow allows the person to regain consciousness.
What is a vasovagal?
Vasovagal syncope (vay-zoh-VAY-gul SING-kuh-pee) occurs when you faint because your body overreacts to certain triggers, such as the sight of blood or extreme emotional distress. It may also be called neurocardiogenic syncope. The vasovagal syncope trigger causes your heart rate and blood pressure to drop suddenly.
What is Presyncopal?
Pre-syncope is the feeling that you are about to faint. Someone with pre-syncope may be lightheaded (dizzy) or nauseated, have a visual “gray out” or trouble hearing, have palpitations, or feel weak or suddenly sweaty. When discussing syncope with your doctor, you should note episodes of pre-syncope as well.
What can be done for syncope?
Passively raising or propping up your legs in the air can also help. To immediately treat someone who has fainted from vasovagal syncope, help the person lie down and lift their legs up in the air. This will restore blood flow to the brain, and the person should quickly regain consciousness.
Is presyncope serious?
The bottom line. Presyncope is the sensation of feeling faint without actually fainting. It can last only a few seconds to a few minutes. Although it may very well be a benign event, it is sometimes indicative of a more serious health issue and should be checked out.
What are the signs of presyncope?
Symptoms of presyncope can include:
- lightheadedness, general weakness.
- dizziness.
- confusion.
- tunnel vision, blurry vision.
- slurred speech.
- trouble hearing.
- sweating.
- nausea or vomiting.
What heart conditions cause presyncope?
Structural cardiovascular disease causes presyncope when circulatory demands are greater than the heart’s ability to increase output. The most frequent structural causes are aortic stenosis and hypertrophic cardiomyopathy.