So if someones heart stops we don’t actually shock them. That’s a medical show myth. We shock them if they’re in something called a lethal rhythm. Which is the heart beating but not actually pumping blood. Very similar to the heart stopping and will eventually lead to the heart giving out. CPR keeps the blood flowing which keeps oxygen moving throughout the body preventing permanent damage. We give medications to restart the heart. They don’t really die until these interventions are stopped. Some people also have a pacemaker that detects their heart going into a lethal rhythm and will take over the electrical impulse until their heart goes back to normal. By the definition of the heart stopping this person would technically die and be brought back too. So I see what you’re saying but I wanted to add some context that this is pretty complex. Even more so when you bring in people deciding when they don’t want these interventions.
This is what I came to say but wasn’t smart enough to put into words. There’s a lot more factors than just being overweight of why a surgery can’t be performed. For a while an issue at my hospital was we were one of the few in the area that could do MRIs on larger patients. So bigger hospitals would transfer these patients to us just for an MRI because their MRI machine was too small or couldn’t handle the weight.