Nitpicking, but 0° to 1°C isn’t cryogenic, merely deeply hypothermic.

Therapeutic near-body temp hypothermia is often used post-cardiac arrest, while recovery from hypothermic states as a result of misadventure has often been documented.

(1) https://acls-algorithms.com/post-cardiac-arrest-care/ (2) https://pubmed.ncbi.nlm.nih.gov/7387271/