Effects of EEG-guided anesthetic depth monitoring on delirium incidence across different age groups: a systematic review and meta-analysis

The effectiveness of EEG-guided anesthesia in reducing delirium risk varies across age groups. EEG monitoring effectively decreases POD incidence in adults. Among elderly patients, EEG-guided anesthesia did not significantly reduce the risk of POD, whereas non-BIS modality may confer greater benefit for pediatric emergence delirium. These findings are hypothesis-generating; future studies should define age-tailored EEG monitoring strategies and clarify indications across patient groups.