Neurally mediated hypotension

Neurally mediated hypotension as explained by Blood Pressure Updates "is a complication that occurs due to unnatural reflex action between the brain and heart, though they are structurally normal. Neurally mediated hypotension is also called fainting reflex, or vasodepressor syncope or neurocardiogenic syncope or autonomic dysfunction or vaso-vagal reflex. Syncope is the formal medical term used for fainting."

Hypotension is referred to low blood pressure.