The goal of this study is to establish the ICP and CPP monitoring process and analyze the results in post-arrest patients, to validate the correlation between direct and non-invasive ICP monitoring indicators, to establish a protocol of management of elevated ICP and insufficient CPP in post-arrest care, to establish a protocol for personalizing CPP and MAP optimization, and to analyze its impact on neuroprognosis. Participants will receive ICP monitoring within 12 hours post-ROSC if meet all inclusion and exclusion criteria.