Neuroinflammation: The central enabler of postoperative cognitive dysfunction

Area of Science:

• Geriatric Medicine
• Anesthesiology
• Neuroscience

Background:

• The aging population and surgical advancements lead to more elderly patients undergoing surgery.
• Postoperative cognitive dysfunction (POCD) is a common complication in older adults, with unclear mechanisms.
• Current identification, prevention, and treatment strategies for POCD are limited due to a lack of standardized diagnostic criteria.

Purpose of the Study:

• To review the mechanisms by which surgery and anesthesia induce neuroinflammation.
• To explore the association between neuroinflammation and the development of POCD.
• To highlight the importance of understanding neuroinflammation for future POCD therapeutic development.

Main Methods:

• This review synthesizes existing literature on neuroinflammation and POCD.
• It examines the pathways linking surgical/anesthetic procedures to neuroinflammatory responses.
• The review discusses the role of neuroinflammation within the multifactorial pathology of POCD.

Main Results:

• Neuroinflammation is proposed as a central component in the pathological network of POCD.
• Surgery and anesthesia are identified as potential triggers for neuroinflammation in susceptible individuals.
• Complex interactions between neuroinflammation and other proposed POCD mechanisms are suggested.

Conclusions:

• Neuroinflammation is a critical factor in the development of postoperative cognitive dysfunction (POCD).
• Further research into the neuroinflammatory pathways is essential for improving POCD management.
• Targeting neuroinflammation may offer a promising strategy for future POCD treatments.