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British woman revived after six-hour cardiac arrest

bbc.com

71–80 of 174 posts

Re: British woman revived after six-hour cardiac arrest

#71
post #56

Good job it wasn't in america, she'd have woken up, seen the bill, and had another heart attack!

This is a great joke but I feel I should point out that cardiac arrests != heart attacks

Indeed.

Survival rates:

- Cardiac arrest (outside hospitals): - Cardiac arrest (inside hospitals): - Heart attack (myocardial infarction): > 90%

Re: British woman revived after six-hour cardiac arrest

#72
I occasionally run into people that want to deter even thinking about the idea of life saving options because of the universe/god’s plan

I met the most spiritual woman who was also in a crusade against Abrahamic religions say that

What a completely unfalsifiable version of logic when the “plan” could just as easily be the treatment

I got through the impasse by saying it just gives people choices even if the choice is already written in stone

Schrodinger’s free will

Re: British woman revived after six-hour cardiac arrest

#73
post #39

Earlier quoted context omitted.

Lightning strikes don't wipe people's personalities. Also during epileptic seizures people's neurons fire in abnormal ways, but then return to normal afterwards. So I'd say that the RAM isn't critical; humans can boot from disk.

> humans can boot from disk Now I want to read a sci-fi book with this sentence in it.

Alter Carbon:

A key concept in Netflix's cyberpunk series Altered Carbon is the 'stack', an advanced hard drive installed on the brainstem on which a person can save a copy of their consciousness. The main effect of stack technology is a form of immortality, because a stack can be installed into another body if the original body dies. But there’s another a major implication only hinted at during the first season of Altered Carbon: If you could choose your own body, would you go with the one you were born with? That's an especially important question for gender fluid or transgender people. The topic was only hinted at in the first season, but Altered Carbon creator Laeta Kalogridis told The Wrap it's something she would like to explore in greater detail.

https://en.wikipedia.org/wiki/Altered_Carbon_(TV_series)#The...

Re: British woman revived after six-hour cardiac arrest

#74
post #37

Reminds me about a quote I heard, don't remember where, about Napoleons main medic. Apparently he noticed that equally injured soldiers would die at different times based upon how close they were to the camp fire with those closest expiring way before those laid out the farthest from the fire. Could be a bs story, I never actually looked into it.

So then he had badly injured soldiers sit really close to the fire?

Re: British woman revived after six-hour cardiac arrest

#75
post #50

Earlier quoted context omitted.

Correct. Hypothermia and drowning (particulartly in cold water) the patient is not pronounced dead until the body has been warmed, this can be 12+ hours after the event. Children do better. The mammalian diving reflex prepares the body for long periods of immersion. Not to be relied upon. https://en.wikipedia.org/wiki/Diving_reflex

It is a true reflex I practice breath holds due to the fact that I spearfish, when I started I could hold my breath for about a minute out of water and less than 2 in water. Funny part is usually you second or third hold is the longest as your body due to the reflex tends to adapt to the higher CO2 levels in it, on the second and third breath hold. I can now hold my breath in water for over 5 minutes due to CO2 desen…

Part of my divemaster training included free diving training.

While I hatted it, I experienced the same thing as you did: I could hold breath for a minute out of water and 2:08 underwater. There's the preparation, getting calm and relaxed, but there's also the diving reflex playing some part there and preparing your body for longer immersion.

Re: British woman revived after six-hour cardiac arrest

#76
post #45

Does this suggest that humans can be put into 'hibernation' to extend their lifespan? (Edit: I mean would be possible in future if we had a better understanding of the process?) If I was rich enough I'd host a competition to extend the life of rats: Each year, whoever could demonstrate a technique to reliably extend the lifespan of a rat by at least 10% over the previous year's record would win a million dollars. I e…

> demonstrate a technique to reliably extend the lifespan of a rat by at least 10% you'd get more from calorie restriction.

Surely calorie restrictions been done with rats, so you're going to need a novel 10% improvement.

Re: British woman revived after six-hour cardiac arrest

#77
post #8

So, I still don't know if you are irreversibly dead if your brain stops all activity. I.e. is the state of your brain preserved just by the connections of the neurons? Or is the "RAM" also critical?

Irreversible brain damage or death occurs when the brain is not getting enough oxygen.

If the brain continues its metabolism without oxygen it induces neuronal cell death.

The mechanism is called anoxic depolarization. Sodium–potassium pumps in the cell walls need to work to maintain K+ and Na+ ion gradient. When the pump runs out of energy it causes glutamate and aspartate concentrations inside the cell grow. When they grow past some critical threshold, it starts programmed cell death.

Cooling he body and brain can prevent this when the brain metabolism slows down to match the lower oxygen levels.

Re: British woman revived after six-hour cardiac arrest

#79
There's a nice research article from 2016 by doctors in northern Norway about resuscitation of frozen patients:

“Nobody is dead until warm and dead”: Prolonged resuscitation is warranted in arrested hypothermic victims also in remote areas – A retrospective study from northern Norway

J. Hilmo, T. Naesheim, M. Gilbert https://www.sciencedirect.com/science/article/pii/S030095721... (open access, CC licence)

Same hospital and team that treated Anna Bågenholm (mentioned in other comments, https://en.wikipedia.org/wiki/Anna_B%C3%A5genholm), and I guess that case is part of the study.

Re: British woman revived after six-hour cardiac arrest

#80
post #56

Earlier quoted context omitted.

This is a great joke but I feel I should point out that cardiac arrests != heart attacks

Indeed. Survival rates: - Cardiac arrest (outside hospitals): - Cardiac arrest (inside hospitals): - Heart attack (myocardial infarction): > 90%

Gah the word "infarction" drives me crazy since it's so close to "infraction"
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