Deep Hypothermic Circulatory Arrest (DHCA) (***)

Temperature ranges Normothermic ≥ 35–37 °C Mild 32-34°C Moderate 28-32 °C Deep 18-28 °C Profound ≤ 18 °C

Profound cerebral metabolic suppression (~90% ↓ CMRO₂ at ~18 °C)

Links:

https://pubmed.ncbi.nlm.nih.gov/34280995/ The Role of Deep Hypothermia in Cardiac Surgery

https://www.bjanaesthesia.org/article/S0007-0912(25)00047-9/fulltext 2024 EACTS/EACTAIC/EBCP Guidelines on cardiopulmonary bypass in adult cardiac surgery