The Post arrest care page has been updated with some additional information about ventilation.
Eastwood, G., Nichol, A. D., Hodgson, C., et al., . Investigators, T. S. (2023). Mild Hypercapnia or Normocapnia after Out-of-Hospital Cardiac Arrest. N Engl J Med. https://doi.org/10.1056/NEJMoa2214552