At least one person has been placed in a form of suspended animation during a trial that aims to help people survive traumatic injuries like a gunshot or stab wound
Source:
https://www.newscientist.com/article/2224004-exclusive-humans-placed-in-suspended-animation-for-the-first-time/?utm_campaign=RSS%7CNSNS&utm_source=NSNS&utm_medium=RSS&utm_content=home