I like to know about vesigal syncope medical term?

Vasovagal (situational) syncope, one of the most common types, may occur in scary, embarrassing, or uneasy situations or during blood drawing, coughing, or urinating.

Prior to losing consciousness, the individual frequently experiences a prodrome of symptoms such as lightheadedness, nausea, sweating, ringing in the ears, and visual disturbances. These last for at least a few seconds before consciousness is lost, which typically happens when the person is sitting up or standing. When they pass out, they fall down; and when in this position, effective blood flow to the brain is immediately restored, allowing the person to wake up.

I think you mean vasovagal syncope. It means fainting that is caused by an overactive vagus nerve. When you move from a sitting position to a standing one, you need your blood pressure to increase a little bit to compensate. The vagus nerve acts to keep your heart rate and blood pressure low, and if it isn't counteracted appropriately when you stand up, then your blood pressure isn't enough to keep your brain awake. So, you faint. It isn't dangerous, and it happens to lots of people. The most important thing is to rule out other causes of syncope (fainting) like problems with your heart.

Tim, might the term you're asking about be "vasovagal syncope"? That one I know. It's fainting or light-headedness caused by stimulation of the vagus nerve, which slows the heartbeat, and supplies the parasympathetic nerves to the lungs, the stomach, the esophagus, and other abdominal organs.

Stimulating the parasympathetic nerves generally produces vasodilation of the part supplied; in general, it slows the heart rate, decreases the blood pressure; contracts the pupils; causes copious secretion of the saliva; and increases gastrointestinal activity.

Stimulation of the vagus causes slowing of the heart rate and, if sufficient, can cause fainting or even cardiac arrest. Usually, when this happens, the heart's ventricles start beating on their own despite continued vagal stimulation.

Vasovagal syncope is the most common type of syncope (fainting). There are a number of different syncope syndromes which all fall under the umbrella of vasovagal syncope. The common element among these conditions is the central mechanism leading to loss of consciousness. The differences among them are in the factors which trigger this mechanism.