2 doctors weighed in:

What is the pathophysiology of syncope?

2 doctors weighed in
Dr. Chirag Patel
Neurology
1 doctor agrees

In brief: Decr brain bloodflow

Syncope (loss of consciousness) is caused by reduced blood flow to the brain.
Most cases are cardiogenic in nature (for example, arrhythmias), but other causes can include vasovagal response, carotid artery compression, vertebrobasilar system disease, etc. See your primary care provider for further discussion if you've experienced syncope. http://www.ninds.nih.gov/disorders/syncope/syncope.htm

In brief: Decr brain bloodflow

Syncope (loss of consciousness) is caused by reduced blood flow to the brain.
Most cases are cardiogenic in nature (for example, arrhythmias), but other causes can include vasovagal response, carotid artery compression, vertebrobasilar system disease, etc. See your primary care provider for further discussion if you've experienced syncope. http://www.ninds.nih.gov/disorders/syncope/syncope.htm
Thank