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Updated: 05/20/2018 08:30:00AM

What is vasovagal syncope?

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People prone to fainting episodes may be introduced to the term vasovagal syncope when discussing their conditions with a physician. Also called reflex syncope or neurally mediated syncope, vasovagal syncope, or VVS, is the most frequent cause of fainting in people. Although it sounds ominous, VVS is quite common and there are some recognizable triggers.

It’s important to note that syncope is the medical term for any type of blackout caused by a sudden lack of blood supply to the brain, which is typical of fainting. According to the organization Syncope Trust and Reflex Anoxic Seizures (STARS), VVS is a transient condition resulting from intermittent dysfunction of the autonomic nervous system, which regulates blood pressure and heart rate.

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