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Doctors Claim Suspended Animation Success

Philoneist.com writes to tell us the Sydney Morning Herald is reporting that US doctors have developed a process to induce hypothermia in trauma patients, shutting down their bodily functions for up to three hours. The process has been proven about 90% effective in trials with pigs and now the doctors would like the go ahead to test it on humans who would "probably die" under normal care.

51 of 390 comments (clear)

  1. What about going to heaven? by Freexe · · Score: 4, Funny

    Surely if your heart is stopped and your brain dead then your soul leaves your body and you go to heaven (or hell) depending on how good you lived your life.

    I expect that it only works on pigs, because they are dirty animals and don't have a soul.

    --
    "In a time of universal deceit - telling the truth is a revolutionary act." - George Orwell
    1. Re:What about going to heaven? by pdbogen · · Score: 3, Insightful

      Parent has an interesting post that probably deserved to be modded up, even if it is a bit flambaity (just because *you* don't believe in heaven doesn't mean everybody doesn't, and this is still on-topic)-

      Anyway, my answer to his problem is this: What about people who go into hypothermia in normal situations?
      Or people who are clinically dead but are then resuscitated?

      Or how about this: If the soul goes to heaven immediately at the time of death, then what's the point of a Christian burial? Why don't we just cremate everybody and save valuable real estate for mad scientists and their ilk?

    2. Re:What about going to heaven? by Anonymous Coward · · Score: 2, Informative

      There is no soul, of course.

    3. Re:What about going to heaven? by Anonymous Coward · · Score: 2, Insightful

      Christians generally bury their dead, because Christians believe in the resurrection of the body.

    4. Re:What about going to heaven? by insertwackynamehere · · Score: 2, Insightful

      or it could be thought that afterlife transends logic and science and that kind of mistake doesn't happen.

    5. Re:What about going to heaven? by Qzukk · · Score: 2, Funny

      Or people who are clinically dead but are then resuscitated?

      What about people who are clinically dead and cannot be resuscitated?

      --
      If I have been able to see further than others, it is because I bought a pair of binoculars.
    6. Re:What about going to heaven? by dada21 · · Score: 5, Insightful

      I'm a Christ follower but I have many problems with Christianity and the overall Body of the church. Your questions are some of the more frustrating ones because the average Christian is so holier than thou when they answer it.

      I like to ask other Christians:

      Why they celebrate birthdays and not conception days (they're so adamant at trying to control non-believers definitions of "life").

      Why they believe one ascends to heaven immediately upon a man saying they are dead.

      Why they believe that one who has no brain activity but body life might still be considered alive on this earth.

      The answers to all three questions are basically: we shouldn't, we won't, and we will never push our views on non-believers. The Bible is pretty strict about holding other believers accountable for their actions, but we should be leaving the rest of the world alone.

    7. Re:What about going to heaven? by 3.14159265 · · Score: 2, Interesting

      Surely if your heart is stopped and your brain dead then your soul leaves your body and you go to heaven (or hell) depending on how good you lived your life.

      ehehehe! Or not.

      Pigs are actually very clean. Sure, they like to roll in the mud to stay cool (and they tend to get sunburns quite easily, like me), and to keep bugs under control (I don't need that, not yet.)
      If they'd be given a choice, I'm sure they'd rather hang out in green fields and pastures and run naked in the woods (I know I would! :), instead of being stuck in meat-producing-pig-hell-shitholes.
      And I'm sure they have a soul, try to scratch them, it makes them crazy! They know pleasure, and to enjoy pleasure is no reason to go to hell (I hope!)

      Going now, the sweet and sour spare ribs are waiting!
      -----
      Born stupid? Try again.

    8. Re:What about going to heaven? by dada21 · · Score: 3, Insightful

      Which is the more dramatic occasion?

      I agree, but on the other hand I have Christian coalition groups all around me badmouthing my beliefs when they say that "life begins at conception" at whatever pro-life rally they're at. If it does, celebrate that day. It is a better use of your time than trying to control those that God never intended believers to control.

      Who is to say the moment death occurs.

      True. This is why I'm consistently reminding those in my congregation to leave their wishes in writing with their family so that the family knows what to do if the worst happens (vegetative state, etc). In the end, and in my opinion, only God knows when you're heading for heaven. Why should anyone choose by the person who is dying? I feel the same way about making the choice to end one's life.

      It just re-stresses the importance of a living will or health care directive.

      Bingo. This is how I live -- trying to follow God's Word while understanding that we live with free will. Make it easy on your family and friends and leave your testament for what will happen in any situation.

      I'd love to find a generic living will/directive that is focused on the choices Christ followers find hard to do. Anyone have a link?

    9. Re:What about going to heaven? by Freexe · · Score: 2, Insightful

      Do I have to believe in God and be a Christian to get that opportunity to go hang out with god? Or can anyone do it?

      --
      "In a time of universal deceit - telling the truth is a revolutionary act." - George Orwell
    10. Re:What about going to heaven? by carpe_noctem · · Score: 5, Funny

      Why they celebrate birthdays and not conception days (they're so adamant at trying to control non-believers definitions of "life").

      I think because singing "Happy Fuckday to You" just isn't very family-friendly, when you get down to it.

      --
      "Quoting famous computer scientists out of context is the root of all evil (or at least most of it) in programming." - K
    11. Re: What about going to heaven? by Black+Parrot · · Score: 2, Funny

      > Do I have to believe in God and be a Christian to get that opportunity to go hang out with god? Or can anyone do it?

      Look at His bumper stickers, to see whether it's one of those "no ass, no grass, no ride" situations.

      --
      Sheesh, evil *and* a jerk. -- Jade
    12. Re:What about going to heaven? by idlake · · Score: 2, Interesting

      Personally, I hope I'll go somewhere more interesting.

    13. Re:What about going to heaven? by Dephex+Twin · · Score: 4, Insightful

      I know what you mean. I ask why he would allow there to be anything bad in the world. Free will doesn't cover it.

      People who say that aren't really thinking about that God supposedly created *everything*-- not just the Earth and its creatures, but dark and light, up and down, good and evil, happiness, laughter, spleens, hydrogen, etc. Why not just create the universe so that there is no bad, no evil, nothing to ever be upsetting?

      If one responds to this suggestion by saying that this would make the world seem dull or pointless... well... God didn't have to create dullness or boredom or pointlessness either. If one responds by saying that God only brings the righteous to Heaven and the Earth is our proving ground... why did God have to make wickedness and bad people? Why not make everything wonderful for everyone all the time forever? Everyone would be worthy of heaven... or heck, put everyone on there to begin with!

      I can't think of any reason that God would make the universe where bad things could happen to anyone, unless (A) he made mistakes and didn't intend for the bad things, (B) he actually wants to screw with us/watch some of us fail, or (C) he's not the only one in control.

      In any of these cases, God wouldn't be what the Bible suggests, and also he wouldn't really be reliable to come through on this whole heaven thing.

      It's not that I don't want to believe in God... I'd love to know that there is a place I go after I die that is even better than living. But it makes no sense that God created a universe like this. It makes no sense that people like murderers and adulterers and rapists make God sad and angry... if he didn't think up these concepts and incorporate them into his universe, they wouldn't even be there.

      --

      If you want to make an apple pie from scratch, you must first create the universe. -- Carl Sagan
    14. Re:What about going to heaven? by dada21 · · Score: 4, Interesting

      I ask why he would allow there to be anything bad in the world. Free will doesn't cover it.

      Yet I can see how "bad things happening" would be directly a reaction to choices made through free will. I can't think of any bad things happening in my life that weren't directly because of choices I made, even if it seems like a cop out. My belief that our veil of uncertainty will be lifted after death leads me to believe that in the afterlife, we'll know what decisions not to make (eve if they aren't sinful decisions).

      Why not make everything wonderful for everyone all the time forever? Everyone would be worthy of heaven... or heck, put everyone on there to begin with!

      Sure, until you understand that God is a jealous God. If we want to worship idols and other gods, we're free to. He never promised not to test us.

      It makes no sense that people like murderers and adulterers and rapists make God sad and angry... if he didn't think up these concepts and incorporate them into his universe, they wouldn't even be there.

      You're right, but it is not something that I could explain. People who know me know that I am the most logical person you'll ever meet. The non-believers can't believe that I believe in God. The believers can't believe that I'm a Christ follower, either, as I don't follow the same path they do.

      My life changed when I accepted Jesus in one big way -- I felt I knew why I was here and it didn't conflict one bit with my login and liberty beliefs.

      I guess that's the big problem with "pushing" religion, though. No one pushed it on me, and to say that God led me towards salvation in everything I was reading and researching makes sense after the fact, but would I have seen it that way before the fact?

      As for rape and murder and robbery, I don't know if I'd feel so certain that I couldn't commit these acts before I believe in God and the Word. I know that I'm utterly disgusted by the thought of any of the above now, but I can't recall how I felt before hand.

    15. Re:What about going to heaven? by hazem · · Score: 2, Funny

      Why they celebrate birthdays and not conception days (they're so adamant at trying to control non-believers definitions of "life"). [sic]

      Which is the more dramatic occasion?


      Well, coming from an x-Christian position, I would say that the moment the soul enters the body (conception) is vastly more dramatic and important than the moment that body passes through a vagina. What could be more important than that moment that God gives you your soul? The date of birth is pretty much an irrelevant incedent - or it should be.

      That is, if you really believe in all that *stuff*. And of course, for this crowd, any part of their body passing through a vagina for a second time will surely rank as the most dramatic moment of their life.

    16. Re:What about going to heaven? by hazem · · Score: 4, Insightful

      I think because singing "Happy Fuckday to You" just isn't very family-friendly, when you get down to it.

      Only in puritanical societies is sex a family un-friendly thing. Sex is the reason we have families. Without it, there's no offspring, and no families. It's ironic that people will adopt such deep close-mindedness that the very thing that is reponsible for their existence is deemed dirty and unworthy of being discussed in a family.

      It's that mind-bending lack clear thinking that makes me an x-xtian.

    17. Re:What about going to heaven? by Pantero+Blanco · · Score: 2, Funny

      "or does god to "snapshots" of people just before they die, so he can "recover" them at the end of days...?"

      A series of save states that people get to pick from when they're restored would make more sense (if you believe in literal physical resurrection). Otherwise, he'd end up with billions of aged people barely able to walk.

      Transendence always made more sense to me.

    18. Re:What about going to heaven? by Ruff_ilb · · Score: 4, Funny

      some girl on the street asked if i was saved yet
        i told her i saved at the checkpoint a couple minutes back
        and can reload from there if i die
        she was confused

      --
      http://www.TheGamerNation.com/Forums
    19. Re:What about going to heaven? by clambake · · Score: 2, Insightful

      Yet I can see how "bad things happening" would be directly a reaction to choices made through free will. I can't think of any bad things happening in my life that weren't directly because of choices I made, even if it seems like a cop out.

      Not from new orleans are you?

  2. Not quite suspended by BWJones · · Score: 5, Informative

    Well, it is not quite suspended animation as the subjects have been cooled to about 10C (50F), so some biological processes do indeed still occur. However, it is below the temperature for most coherent biological processes to continue to function. Furthermore, it has been known for some time that with certain traumas involving CNS or CNS function, cooling has been an effective means of controlling continued damage related to the CNS. For instance, in many CNS traumas such as stroke (ischemic or haemorrhagic), there are cascade reactions that follow the initial insult. These cascades involve Ca+2 mediated events that often result in or are the result of cellular apoptotic pathways being induced which causes further damage. Cooling of the body in a trauma unit tends to limit such damage for reasons that are not completely understood at the basic science level and the free radicals discussed in the article are not the only possibility for damage as there are many protein pumps whose physiology is dramatically altered by temperature and pH changes.

    It's too bad that the NIH budget was cut this year (effectively below the rate of inflation) by the Whitehouse and further cut by Congress who, while managing to take care of their own salaries before going on vacation, could not work in the NIH budget to their schedule. As a result, many labs here in the US this year have had to slash this years budget by 12-20% which has a dramatic effect on the success of bioscience research such as this suspended animation work.

    --
    Visit Jonesblog and say hello.
    1. Re:Not quite suspended by dr.+loser · · Score: 3, Informative

      It's too bad that the NIH budget was cut this year (effectively below the rate of inflation) by the Whitehouse and further cut by Congress who, while managing to take care of their own salaries before going on vacation, could not work in the NIH budget to their schedule. As a result, many labs here in the US this year have had to slash this years budget by 12-20% which has a dramatic effect on the success of bioscience research such as this suspended animation work.

      Look at these budget numbers here.

      While I have sympathy for the NIH, their overall budget was only cut by about 1%. Adding in inflation, that's about 4% or so in real dollars. Now, that's sucky, but NIH's budget has doubled over the last 10 years or so, in real dollars, and is around $25B/yr. If a 1% cut makes labs cut their budgets by 12-20%, those labs are either unlucky or poorly run.

      By contrast, the NSF, which supports much of the rest of basic science research in the US, has had real $ cuts for the last several years, and has remained largely flat in real $ during the NIH doubling. NSF's total annual budget is about $5B/yr, or, in more interesting units, about three weeks of the Iraq conflict. So, as a physical scientist, forgive me if I don't get tooooo upset about NIH's situation.

    2. Re:Not quite suspended by BWJones · · Score: 3, Informative

      but is this why it works as opposed to cryogenics? The fact that it's not quite frozen? IIRC, the reason cryogenics doesn't work, is that the freezing actually ruptures the cell membranes, am I correct?

      You are partially correct. Cell membrane rupture due to ice crystal formation is certainly a huge part of the problem. However, it should be noted that there are organisms that manage to overcome this by including within their circulating fluids, an "anti-freeze" compound of sorts. Deep ocean cod are one type of organism that does this. The other issues have to do with genetic and protein integrity. Small molecules tolerate freezing quite well, but the larger a molecule is (peptide, protein), the more sensitive it is to large temperature alterations and freezing. If too much damage is done to proteins and/or genes, cells induce a termination sequence that essentially causes them to commit suicide (apoptosis).

      Also, is the fact that the metabolic rate drops so much for every 10 degrees C the reason why the brain can "survive" without oxygen being pumped through via blood? If the metabolic rate slows, does it lessen the need for the brain to take in as much oxygen, and thus allowing it to be able to return to normal after this kind of procedure?

      This is certainly a major part of why it is thought this technology works. It turns out that many metabolic processes have a cost. Oxygen is actually a little dangerous and the higher the partial pressure of oxygen, the greater the chance of damage by free radicals. Those pesky free electrons can cause all sorts of havoc and that is exactly why people should be careful with those air cleaners that "clean" through ozone generation. If oxygen is toxic, ozone is even more so.

      Sorry if I sound stupid, but like I said, this stuff is beyond my knowledge, hence the questions.

      Actually, the very act of asking questions demonstrates a degree of intelligence that is sorely lacking among far too many folks so, there are rarely any stupid questions and I am most happy to share any information I have here on Slashdot.

      --
      Visit Jonesblog and say hello.
  3. 90% effective? by Trigun · · Score: 4, Funny

    I have ten peoplethat I'd like to nominate for clinical trials!

  4. Major hurdle to overcome by rts008 · · Score: 2, Interesting

    "Brain death occurs in 4-5 minutes Brain can survive for 90-120 minutes"

    If they can get past this, they may be on to something here- shame research funding for this was cut.

    --
    Down With Slashdot BETA!!! I've been around the corner and seen the oliphant; you can only abuse me from your perspecti
  5. Hmmm by squoozer · · Score: 2, Interesting

    I wonder how many times you can undergo this treatment and still be fine. Perhaps one could undergo it several times a night thus lenghtening the time you could potentially live by maybe 30 or 40%. I for one would welcome our new 160 year old overlords.

    --
    I used to have a better sig but it broke.
    1. Re:Hmmm by Anonymous Coward · · Score: 2, Insightful

      Putting your body through massive hypothermic trauma will almost certainly not extend your lifespan.

  6. 90% effectiveness... what about the remaining 10%? by zanderredux · · Score: 4, Interesting
    Should we suppose that the remaining 10% died a horrible, cold death?

    Too bad they couldn't figure out a way to do it safely yet, we could use for manned long-duration space travel or just to stick around and get defrosted, Futurama-style.

    I wonder how the world will look like in, say, 100 years, but do have the patience (or the stamina) to wait. Maybe Bin Laden will finally have been caught? Maybe Brazil becomes the next world superpower? Who knows?

  7. Obligatory Flatliners Quotes by Doomedsnowball · · Score: 2, Funny

    Memorable Quotes from
    Flatliners (1990)
    Nelson Wright: Hello, I'm nice, he's nice, we're both fucking lunatics. Can I come in, please?
    David Labraccio: He said ... he said it wasn't such a good day to die.
    Nelson Wright: Thank you.
    Nelson Wright: Today is a good day to die
    Nelson Wright: You bring the equipment, I'll bring my balls.
    Joe Hurley: I don't know. Not thinking about the past or the future. I don't know it's difficult to explain, maybe impossible.
    David Labraccio: Yeah, dying is quite that way.
    Randy Steckle: I did not come to medical school to murder my class mates no matter how deranged they might be.
    Nelson Wright: Everything matters, everything we do matters.
    Nelson Wright: Somehow we've brought our sins back physically. And they're pissed.
    Randy Steckle: Good thing I didn't flatline. My 350-pound babysitter would be chasing me for the half-eaten pastrami sandwich I stole from her.
    Nelson Wright: C'mon, Billy Mahoney. C'mon... Gimme your best shot. I dare ya. I fuckin' dare ya.
    Nelson Wright: Wake up you little shit, you got company!
    Rachel: See you soon.
    Nelson Wright: Philosophy failed. Religion failed. Now it's time for medical science to try.
    David Labraccio: You should have told us, Nelson.
    Nelson Wright: You wouldn't have done it.
    David Labraccio: At least we would've had a choice!!!
    David Labraccio: [screaming at a religious stained-glass portrait] I'm sorry.. we *trespassed* on your... *fucking* territory. God! I'm *sorry*!

    --
    7h3$3 4r3n'7 7h3 Ðr01Ð$ ¥0 4r3 £00|{1n9 f0r. M0v3 4£0n9. --OB1
  8. Congratulations! by lee7guy · · Score: 2, Funny

    I will send them a copy of Dean R Koontz "Hideaway" as a congratulatory gift. :)

    --
    Ceterum censeo Microsoftem esse delendam
  9. Saving brain cells by 4D6963 · · Score: 2, Interesting
    Reminds me of an article I read about a month ago in a magazine. It was about cooling down the blood of someone who had a heart attack to prevent brain cells from "commiting suicide", a process that normally starts when the brain didn't get much oxygen in the last 5 minutes. However, they said that they wouldn't get the body too cold, I think they said not under 35 degrees, or was it 33.

    I wonder how this new technique might improve the own of saving the brain from destruction after an heart attack, as if now it could be safe to get the body much cooler for much more improvement.

    --
    You just got troll'd!
  10. Gotta Love Indirection by OzPeter · · Score: 5, Funny

    A story is posted on Slashdot (US)
    Of the Sydney Morning Herald (Australia)
    Reporting a story in the New Scientist (England)
    Of a bunch of scientists at Massachusetts General Hospital in Boston (US)

    Can we add a few more levels of indirection here??

    --
    I am Slashdot. Are you Slashdot as well?
  11. Re:How nice by xiphoris · · Score: 3, Insightful

    90% on pigs, that could be 80% on humans, maybe not. but still, 90% is not the very best...I think they should first work a little more on it then ask us humans.

    The purpose of their proposed clinical trials is to give patients who will almost surely die with conventional methods some limited hope with this "experiment". Yes, perhaps it only has a 90% success rate, but modern medicine has no effective techniques to handle catastrophic blood loss, such as in car accidents and other traumas.

    The purpose of asking for these medical trials is to bring the chance of survival up from maybe 5% with conventional techniques to something higher.

  12. Drowning people in icy waters... by IAAP · · Score: 4, Informative
    I'm trying to remember where I've seen this, but IIRC, this has been done by accident when someone falls into icy waters. I think it was a kid who fell into an incy pond and was eventually rescued. Because of the temperature, he was fine. Appearently, it slowed his metabolism down enough that it didn't deplete all of the O2 in hsi blood.

    I'm sifting through all of the Google hits from my search terms now.

    1. Re:Drowning people in icy waters... by Anonymous Coward · · Score: 2, Informative

      I grew up in Minnesota and there is very old a saying that goes something like:
      "They ain't dead until they are warm and dead"

      Especially with children falling through the ice.

    2. Re:Drowning people in icy waters... by Teddy_Roosevelt · · Score: 3, Informative

      In northern parts of the U.S., wintertime drowning victims are often revived up to 40 minutes later if their body temperature dropped rapidly while drowning. Emergency room doctors have a rule for this: When it comes to cold water drownings, "You're not dead until you're warm and dead".

  13. Such as.. by Channard · · Score: 4, Funny

    .. 'Er, why do you want to eat my brains?'

  14. Interesting by lxs · · Score: 4, Informative

    This is interesting, but not quite new. I remember hearing about Soviet surgeons cooling down and effectively shutting down patients' bodies to perform open heart surgery without having to use a heart lung machine. (which were very hard to come by in the Soviet Union)

  15. That was the plot of 'John Doe'.. by Channard · · Score: 5, Interesting
    .. a sci fi/mystery series that got axed. The story revolved around a guy who had no memory of who he was but apparently knew everything and went to wacky adventures every week, hoping to find out what really happened. His Ultimate Knowledge (TM) made him a whiz at tracking down serial killers and so forth, as you'd imagine.

    One of the shows creators revealed in some TV guide or other that had the show got an extra series or two, it would have been revealed that John was in fact the result of an experiment by a mysterious group to gain all the knowledge of the universe. They believed that such knowledge was revealed at the moment of death, hence John was killed and brought back again. But the series got axed before any of that could really be explored.

  16. I have a business idea by mnmn · · Score: 4, Funny

    I'll start a company that will freeze people and keep them in safe storage for a defined period of time for a maintenance fee. People could keep money in their savings account and freeze themselves for 10 or 100 years, and wake up to collect their money. It'd feel like a long nights sleep and winning the lottery afterwards.

    But they'll have to make sure the money is in the right place, with enough interest to pull them ahead of the rest of the country/world, else its all in vain. Therefore we provide long-term financial services too. :)

    I suggest customers buy lots of real-estate around cities with major natural resources and good weather. Hopefully they wont wake right after WWIII to realize their lands cost nothing.

    Invesing in gold is not a bad idea either for the long term.

    My freezer can take 2 persons. Who wants to be first??

    --
    "Give orange me give eat orange me eat orange give me eat orange give me you." -Nim Chimpsky
  17. Re:If I was about to die... by MikeFM · · Score: 2, Insightful

    That's why we put their brains in little jars and throw away the bodies. Much more compact. Create a nice VR world and give all the brains WiFi access and you're set.

    --
    At what price learning? At what cost wisdom? The price is a man's peace of mind, and the cost is his life.
  18. More interesting headline would have been: by geekoid · · Score: 3, Funny

    "Doctors from 1742 Claim Suspended Animation Success"

    --
    The Kruger Dunning explains most post on /. http://en.wikipedia.org/wiki/Dunning%E2%80%93Kruger_effect
  19. Re:How nice by m50d · · Score: 2, Insightful

    If there's a risk of you dying, you expect, even require, the doctors to do whatever they think will give you the best chance. So I would have no problem with this being the default for people whose chance of surviving without it is sufficiently low.

    --
    I am trolling
  20. CTRL-Z your body and jump ahead in time by quokkapox · · Score: 2, Interesting

    What if going into suspended animation for short and/or extended periods became common practice for everyone (or maybe only the elite)? Assuming that the process was safe, reliable and inexpensive? Imagine if you could skip winter every year, or sit out an unfavorable situation until enough time has passed that things would be different when you woke up?

    --
    it's a blue bright blue Saturday hey hey
  21. MItochondria by realilskater · · Score: 2, Informative

    If I remember my intro biology correctly they are inducing a state where the mitochondria are the only cells in the body producing any ATP. This has been seen before in people that have been chilled quickly by falling in an icy river for instance. All body functions cease but the mitochondria make enough energy to keep everything alive.

  22. Re:90% effectiveness... what about the remaining 1 by blincoln · · Score: 4, Informative

    Should we suppose that the remaining 10% died a horrible, cold death?

    Even assuming the article weren't talking about terminal patients, death from hypothermia is one of the least horrible ways to go. Your higher brain functions stop working, you become very calm and stop feeling cold, and then you go to sleep.

    --
    "...always new atoms but always doing the same dance, remembering what the dance was yesterday." -Richard Feynman
  23. I've been doing this for years by noidentity · · Score: 2, Funny

    Just open browser preferences and check "Disable GIF animation".

  24. loss of skills by zen-theorist · · Score: 2, Insightful

    does the subject retain memory, cognitive skills and motor skills after this induced hypothermia? maybe someone with access to the new scientist article could respond. people would fear this mode of treatment as much as chemical anaesthesia if these are not analyzed in their entirety.

  25. Re:90% effectiveness... what about the remaining 1 by mav[LAG] · · Score: 3, Interesting

    I can vouch for this experience 100%. After a long, cold and very wet route march across the South Downs (a particular Brit Army training exercise), I plonked myself down in a window seat on the bus to take us back to barracks and passed out from exhaustion. Some moron opened that window while I was sleeping with the result that I experienced 50mph windchill for the next two hours in wet clothing while completely immobile - no need for snow or 30 below zero weather.

    When we go to the other end, I vaguely remember feeling warm and comfortable but strangely unable to move. I also remember being surrounded by clearly panicking instructors who were bellowing at me not to go to sleep while they manhandled me to the hospital. It was very surreal - like you're watching yourself from outside with a mixture of detachment and fascination. Mountaineering tales I've read describe the same thing: a sort of pleasant warmth even while you're looking at your frostbitten fingers and a very strong desire to take a "short nap."

    Death by freezing would have felt pleasant I'm sure. On the other hand, being warmed up slowly was the worst experience I've ever had bar none because then you start feeling how cold you really are - and the feeling continues for days. I can't remember what my core temperature had dropped to but it was dangerously low.

    --
    --- Hot Shot City is particularly good.
  26. Re:90% effectiveness... what about the remaining 1 by blincoln · · Score: 2, Interesting

    Yep, that's almost exactly how it was for me. The main difference was that I knew I would die if I fell asleep. That was a surreal experience, going to sleep and not expecting to wake up.

    I only had frost nip in one of my toes, but the sensitivity-to-cold thing was definitely a hassle. I think it was at least a week before my sense of temperature was back to normal.

    --
    "...always new atoms but always doing the same dance, remembering what the dance was yesterday." -Richard Feynman
  27. Re:Neuroprotection by mgv · · Score: 3, Interesting

    This concept is not relatively new. Randomized clinical trials, involving trying to protect the brain, in surgeries like CABG (Coronary artery bypass graft) are taking place for more than 10 years now. 5 years ago, a review of many such trials found that though stroke related deaths decreased by inducing hypothermia, they faced other non-stroke related mortality in operations and overall there was no difference between hypothermia and normothermia.

    However, there is some evidence of benefit in non traumatic head injuries (eg post cardiac arrest) where cooling does provide improved neurological outcomes.

    Hypothermic circulatory arrest is used routinely for certain types of aortic arch surgey where it would be difficult to maintain cerebral circulation (eg for aortic arch dissection) using conventional techniques.

    If you cool someone down to something in the range of 15-24 degrees you can get 20-40 minutes of cardiac arrest without major consequence.

    The articles seem to present this as something new - its really more an extension of a known technology into trauma surgery.

    I suspect that the biggest problem with this level of extreme hypothermia is that blood coagulation essentially fails at these temperatures - so in the case of trauma, they are going to have to sow everything up and even then nothing will seal over - which leads to the need for massive transfusion requirements as everthing bruises up extremely badly. Massive transfusions (> 10 units of blood) are likely in themselves to cause multi organ failure, and a downward spiral of death.

    This is just a technical hurdle to be overcome, but at the moment the odds of surviving this will be very low - so low that I don't think you would do it for anyone who has even a slight chance of surviving the injuries by conventional measures.

    My 2c worth

    Michael

    --
    There is no cryptographic solution to the problem where the intended receiver and the attacker are the same entity.