It's not that CPR doesn't work, it's that outcomes after resuscitation usually aren't great. The study doesn't disclose ages or neurological outcomes post-rescuscitation so that limits my interpretation but quick rescue and quick CPR is key in those acute, single reason emergencies. That isn't to say in an emergency situation you shouldn't try especially since you don't know that person's wishes. There are good outcomes but usually for underlying healthy people who had one thing go wrong. Think the athlete who's heart stops on the field for some reason.
I've admitted at least a thousand people into a hospital through the ER and I tell everyone that it's not like on TV. If you're older, sick, multiple chronic diseases, don't take care of yourself, etc. the chances of any kind of quality of life after CPR is limited. Death is terrifying and I understand them wanting to try but it's just not realistic a lot of the time. We need better deaths in the US and more in-depth end-of-life conversations with our patients. That should be starting in the PCP's office. Trying to discuss that with a patient in the ER who's already scared isn't ideal. I've seen patients with do not resuscitate/do not intubate orders on file change their mind when they're suffocating and panicking then once they're more stable immediately change their mind back.
What about the 19yo I saw today, with a BMI of 62, who's so far stuck in the cycle of self loathing, inactivity, depression, and pleasure seeking behavior that he can't see a way out let alone start creating himself a new reality? What if I have a drug that I'm pretty confident can help him lose 200lbs? Is it ethical for me to not prescribe it because "he should be able to do it on his own?" How many people do you know who have done that? Out of the hundreds or horribly obese patients I've seems, I have tow that have done it with diet and exercise. We have not evolved for a world where 20,000 calories costs $20 and is available 24/7.
I agree we need to be cautious with these drugs since long-term adverse effects aren't known but the long-term effects of obesity are well documented. I have backed off on pitching these drugs since I learned the companies making them have infiltrated the obesity research community in the US (because of course they did). They're still an amazing tool in the fight against an obesity epidemic which has many, many different contributing factors li ok e trauma, depression, mental health issues, upbringing, genetics, etc, etc. it's not as easy as "just don't eat so much."