I have heard about people being choked to death during such sexual acts. I have no idea of how great the risk is, but it certainly is something that happens.
(post is addressed to the thread in general, not just Aegis)
The sad fact is that most of these folks don't reach help in time - they are mostly classed under "DOA" (Dead On Arrival).
Hell, besides my regular job; I've also been a flight medic/paramedic/volunteer fireman for most of my life (I still am) and all though I don't get many such calls where I live now (perqs of my current job - I don't deploy unless it is an emergency. I'm far more valuable at the hospital than on route it seems *grumbles*), I used to get plenty of them when I used to work the cities.
Almost always present with similar case - victims are either really young (late teens to earlish 30s) or mostly middle-aged (40s, 45+ish) and many of them were male over female. By the time you reach the scene, they've been hypoxic for too long and I could barely get a heart rhythm, if any. I'd intubate 'em and bag 'em and have the rig scream to the nearest ER while I was pumping them with stimulants but it was almost always futile - ER almost always said what I already knew: "patient DOA".
I say "almost always" because there were those rare instances when we did somehow manage to reach the call and I was able to intubate, bag, and stabilize for admit... only to find out that the patient was "alive" but had "too much oxygen deprivation" and was nothing more than a living vegetable. brain dead, no cognizance but the hearts, lungs and kidneys worked fine!
And this isn't just based on my experience - it was also based on what the other guys and gals I worked with at the hospital or on a "rig" (rig is slang for an ambulance) faced.
People assume that this is 'normal sexual practice' when it really is not - because if it was, I'd be getting far more calls or seeing far more cases that I really do. There is a reason this is called a "fetish".
'But Roughneck, couldn't this also mean that many people are doing this but safely?'
Sure - and this could also prove that my dog speaks English.
In any case, how do you think the public has any "real" idea about this (or for that matter any) condition out there in the real world? For example: for anyone to have an idea of "how many people died of such and such condition", look at your local newspaper. How many of you see much about the "disease" that took "so and so away" ? Especially in America? HIPAA prevents hospitals from releasing even the tiniest bit of information without familial consent. You think families are going to agree to say "so and so died while being strangled during sex" ?
Think I'm being obtuse? Try it yourself. Give yourself a choke - or ask your partner to do so. Do it regularly (and while doing so, keep passing out and suffer that hypoxic damage as well). You may think 10 years down the line "Haha! Roughneck! I'm still alive! Means you were full of shit".... I would advise you to wait a while till your doctor breaks the solemn news to you that you are at an increased risk of anything from TIAs, strokes, heart attacks and pulmonary emboli. He will then suggest getting in touch with a surgeon to undergo a risky procedure to alter the structure of your circulatory system to the head.
So on and so forth.
People are welcome to think I'm talking out of my ass and that my 20+ years working health care, trauma, rapid response, emergency medical services and perdiatrics don't mean a thing. After all, everybody's opinion counts, right?
Like I said in the first post - "I strongly advise avoidance - and if it is not possible, please consider the risks. They are serious and quite deadly."
cheers,