Neurocardiogenic syncope (patient information)

Overview

Neurocardiogenic syncope, otherwise known as vasovagal syncope or reflex syncope, is fainting or involuntary loss of consciousness that is caused by a particular trigger. Syncope or fainting generally occurs due to a momentary loss of blood flow to the brain, which deprives the brain of oxygen. There is usually a rapid recovery after a fainting spell. If you have episodes of dizziness or lighteheadedness without losing consciousness, this is called pre-syncope.