2 мар. 2023 г. · 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 ...

Common triggers that cause this condition · Needles or medical instruments. · Seeing blood. · Stress, anxiety or emotional upset. Strong emotions, especially ...

1 июл. 2024 г. · Unlike epileptic seizures, vasovagal syncope seizures are triggered by situational changes in heart rate and blood circulation rather than ...

19 июн. 2023 г. · Causes · stress · fatigue · prolonged standing · being in a crowded place · being in a hot environment. Comparison · Syncope · Seizure · Diagnosis

24 окт. 2024 г. · Vasovagal syncope is caused by overstimulation of the parasympathetic nervous system, in particular the vagus nerve, which controls functions ...

10 окт. 2019 г. · Vasovagal syncope is caused by a sudden drop in blood pressure, often triggered by a reaction to something. This causes your heart to slow down for a short ... Causes · Symptoms · When to see a doctor · Diagnosis

Vasovagal syncope (VVS) occurs due to cerebral hypoperfusion from a fall in blood pressure, with accompanying bradycardia in most cases.

It is proposed that the failure of sympathetic efferent vasoconstrictor traffic occurs episodically and in response to a triggering agent such as fear, anger ...

Vasovagal syncope happens when you have a sudden drop in blood pressure, which causes a drop in blood flow to your brain. It often occurs after standing for a ...