Anesthesia and the brain: mere sleep or true disruption?

By Lila Rouland | Published on August 22, 2025 | 2 min read

#POCD #Neurology #Anesthesia #Surgery  


Postoperative cognitive decline (POCD) is a frequent and concerning complication, particularly among elderly patients undergoing major surgery. This condition manifests as impairments in memory, attention, or processing speed, which may durably impact quality of life, delay recovery, and increase the risk of dependency.  

A major limitation in managing this condition lies not only in the absence of a standardized definition, but also in the wide methodological variability across studies and the lack of specific diagnostic tools. These gaps hinder comparison of results and slow the development of targeted prevention strategies. A central challenge is to disentangle the respective contributions of anesthesia and surgery to the onset of these impairments, while identifying patients at highest risk through clinical or biological criteria.