I've recently been participating in jujitsu, where a common choking technique involves applying pressure to the neck region and blocking blood circulation to the brain. The choke is applied until an opponent either signals defeat or if the opponent loses consciousness. The choke usually lasts for 5 seconds, and 90% of the time, the choke is released before loss of consciousness.
My question is whether or not there is a risk of irreversible brain damage being done? Two risks that I can think of is 1. transient reduction in cerebral blood oxygen level due to arterial occlusion 2. increase in ICP, possibility causing a decrease in regional blood flow.
I've been experiencing headache and drowsiness after being choked and the symptom lasts for roughly a day or two, however everything is back to normal after a week. I think the symptoms are most likely due to increase in intracranial pressure (ICP) since the symptom becomes more pronounced when my head tilts below my heart. I believe the increase in ICP is due to occlusion of the jugular veins during heavy exercise intensity, leading to an accumulation of fluid inside the brain.
However, as I've mentioned the choke lasted for less than 5 seconds, and my symptoms seems to be reversible in a day or two. My question is whether or not there is a risk of irreversible brain damage being done?
Thank you for your time!