the truth is that if we leave behind all romanticism, the heart is not much more than a glorified pump

Lol. This got me. It actually made me read until the end. Nice use of words.

waiting and seeing if the patient dies or survives is not a very practical idea

Yes, not a practical idea. Given that we don't have to trade lives for the essence of research. But now, I also do not think there's another way this can be properly researched. Although I'm quite aware this syndrome can be triggered by winning or losing a lot of money, divorce, physical stressor, arguments, even COVID-19, do you know if there's any way the severity of the syndrome can be ascertained?