Carotid sinus syndrome is a temporary loss of consciousness that sometimes accompanies convulsive seizures because of the intensity of the carotid sinus reflex when pressure builds in one or both carotid sinuses.
2.
The carotid sinus can be oversensitive to manual stimulation, a condition known as "'carotid sinus hypersensitivity "', "'carotid sinus syndrome "'or "'carotid sinus syncope "', in which manual stimulation causes large changes in heart rate and / or blood pressure.