Journal
BRITISH MEDICAL BULLETIN
Volume 106, Issue 1, Pages 161-178Publisher
OXFORD UNIV PRESS
DOI: 10.1093/bmb/ldt006
Keywords
neuroinflammation; cognitive decline; neurodegeneration; surgery; sleep
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Aseptic surgical trauma provokes a homeostatic neuroinflammatory response to promote healing and protect the organism from further injury. When this response is dysregulated, harmful consequences can follow, including postoperative cognitive decline. We performed a comprehensive search on PubMed related to postoperative cognitive dysfunction (POCD). Although the precise pathogenic mechanisms for POCD remain unclear, certain risk factors are known. The mechanisms that lead to exaggerated and persistent neuroinflammation and the best way to counteract it are still unknown. It is imperative that we identify the underlying processes that increase the risk of cognitive decline in elderly surgical patients. In this review we explore non-resolution of inflammation as an underlying cause of developing exaggerated and persistent POCD. If interventions can be developed to promote resolution of neuroinflammation, the patients postoperative recovery will be enhanced and long-term consequences can be prevented.
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