Overview. 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.

What does it mean when you pass out randomly?

Many different conditions can cause fainting. These include heart problems such as irregular heart beats, seizures, low blood sugar (hypoglycemia), anemia (a deficiency in healthy oxygen carrying cells), and problems with how the nervous system (the body's system of nerves) regulates blood pressure.

What is it called when you pass out for no reason?

Syncope (pronounced “sin ko pea”) is the medical term for fainting or passing out. It is caused by a temporary drop in the amount of blood that flows to the brain. Syncope can happen if you have a sudden drop in blood pressure, a drop in heart rate, or changes in the amount of blood in areas of your body.

Why did I pass out out of nowhere?

Fainting, or syncope, is a sudden and temporary loss of consciousness. This usually occurs due to a lack of oxygen reaching the brain. Many things can cause oxygen deprivation to the brain, including low blood pressure.

Is syncope life threatening?

In most cases, syncope is not a sign of a life-threatening problem, although some people with syncope have a serious underlying medical condition. In non-elderly people, over 75 percent of cases of syncope are not associated with an underlying medical problem.

What Happens When You Pass Out?

Is syncope a seizure?

Many syncopal events include loss of consciousness as the only symptom. The diagnostic problem occurs when a patient with syncope also has myoclonic jerks or convulsions. These events are sometimes referred to as seizure-like syncope or convulsive syncope.

Is syncope an emergency?

Syncope is a common chief complaint encountered in the emergency department (ED). The causes of syncope range from benign to life threatening. Being able to rule out life threatening causes is one of the main goals of the emergency physician.

Can anxiety make you faint?

For example, the sight of blood, or extreme excitement, anxiety or fear, may cause some people to faint. This condition is called vasovagal syncope. Vasovagal syncope happens when the part of your nervous system that controls your heart rate and blood pressure overreacts to an emotional trigger.

Is it OK to sleep after fainting?

It is recommended that you lay the person down and elevate their feet. Most people will recover quickly after fainting once they lay down because more blood can flow to your brain.

Should I go to ER after fainting?

If you experience minor fainting episodes caused by suddenly standing up or heat exhaustion, then you may not need to visit an emergency room. An exception is made if falling after fainting has caused damage to your body – including concussions, fractures, or other severe injuries.

What is a vasovagal?

Vasovagal syncope is a condition that leads to fainting in some people. It is also called neurocardiogenic syncope or reflex syncope. It's the most common cause of fainting. It's usually not harmful nor a sign of a more serious problem. Many nerves connect with your heart and blood vessels.

Can vasovagal cause death?

Over a 24-year observation period, patients whose syncope was attributed to vasovagal or other causes had a mortality ratio of 14% and an excess death rate of 20. Neurogenic syncope had a mortality ratio of 168% and an excess death rate of 34.

Can fainting lead to death?

When this happens, you think you've simply fainted. But with VFib or sudden cardiac arrest, you won't wake up — and unless someone restores normal heart rhythm with an automated external defibrillator (AED), you'll die within 10 minutes. Sudden cardiac arrest is fatal 95% of the time.

What is it called when you are dizzy all the time?

Dizziness that creates the false sense that you or your surroundings are spinning or moving is called vertigo. Dizziness is one of the more common reasons adults visit their doctors. Frequent dizzy spells or constant dizziness can significantly affect your life.

Why do I faint when I see blood?

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 are psychogenic blackouts?

Psychogenic blackout is a medical term for a blackout that can look like reflex syncope or an epileptic seizure but is not related to either. During a psychogenic blackout, people lose some control of their body. Attacks might involve: Passing out and falling to the floor. Jerking movements of your arms or legs.

Do and don'ts of fainting?

If possible, lie down and elevate the feet. This may prevent a loss of consciousness. Fresh air can also help, especially if you are feeling hot. If it is not possible to lie down, put your head down as low as possible.

What is the difference between fainting and passing out?

Fainting happens when you lose consciousness for a short amount of time because your brain isn't getting enough oxygen. The medical term for fainting is syncope, but it's more commonly known as “passing out.” A fainting spell generally lasts from a few seconds to a few minutes.

How do you wake up someone who fainted?

If you see someone faint, lie the person on his or her back and make sure they are breathing. If possible, lift the person's legs above heart level to aid blood flow to the brain. Loosen all constrictive clothing such as collars or belts.

Can depression cause fainting?

A depressed mood is a common symptom with many psychological conditions including depression and can also occur with dementia. Fainting can be related to heart rhythm disorders or other conditions including a vasovagal reaction.

What is a Derealization episode?

Overview. Depersonalization-derealization disorder occurs when you persistently or repeatedly have the feeling that you're observing yourself from outside your body or you have a sense that things around you aren't real, or both.

What to eat after fainting?

Eat high fibre foods such as bran cereal, fresh and dried fruits, vegetables, beans and lentils, wholemeal bread, brown rice and pasta. Read the food label! Plenty of fluids also help to prevent constipation. Potassium: Patients taking Fludrocortisone for PoTS and vasovagal syncope are prone to losing potassium.

Is syncope a change in mental status?

Syncope is not to be confused with a loss of consciousness associated with altered mental status or stroke, or with vague dizziness and chronic lightheadedness. Presyncope (ie, near syncope or near loss of consciousness) and true syncope should be considered a spectrum of the same symptom.

When should I go to the ER for syncope?

Go to the ER if you have: Any loss of consciousness or fainting. istockphoto ...even if you think it's just because you haven't eaten all day. It might be nothing, but it could also signal a heart or circulation problem or even a stroke. "There's no way to determine the cause on your own," says emergency physician Dr.

What is it called when you go in and out of consciousness?

When the loss of consciousness is temporary and there is spontaneous recovery, it is referred to as syncope or, in nonmedical quarters, fainting.