학술논문

Recommendations for the nomenclature of cognitive change associated with anaesthesia and surgery—2018
Document Type
article
Source
British Journal of Anaesthesia. 121(5)
Subject
Biomedical and Clinical Sciences
Clinical Sciences
Acquired Cognitive Impairment
Dementia
Mental Health
Behavioral and Social Science
Clinical Research
Brain Disorders
Aging
Neurosciences
Mental health
Anesthesia
Cognition Disorders
Diagnostic and Statistical Manual of Mental Disorders
Emergence Delirium
Humans
Incidence
Neuropsychological Tests
Postoperative Complications
Preexisting Condition Coverage
Research Design
Terminology as Topic
Nomenclature Consensus Working Group
cognition disorders
delirium
neurocognitive disorders
postoperative complications
Anesthesiology
Clinical sciences
Language
Abstract
Cognitive change affecting patients after anaesthesia and surgery has been recognised for more than 100 yr. Research into cognitive change after anaesthesia and surgery accelerated in the 1980s when multiple studies utilised detailed neuropsychological testing for assessment of cognitive change after cardiac surgery. This body of work consistently documented decline in cognitive function in elderly patients after anaesthesia and surgery, and cognitive changes have been identified up to 7.5 yr afterwards. Importantly, other studies have identified that the incidence of cognitive change is similar after non-cardiac surgery. Other than the inclusion of non-surgical control groups to calculate postoperative cognitive dysfunction, research into these cognitive changes in the perioperative period has been undertaken in isolation from cognitive studies in the general population. The aim of this work is to develop similar terminology to that used in cognitive classifications of the general population for use in investigations of cognitive changes after anaesthesia and surgery. A multispecialty working group followed a modified Delphi procedure with no prespecified number of rounds comprised of three face-to-face meetings followed by online editing of draft versions. Two major classification guidelines [Diagnostic and Statistical Manual for Mental Disorders, fifth edition (DSM-5) and National Institute for Aging and the Alzheimer Association (NIA-AA)] are used outside of anaesthesia and surgery, and may be useful for inclusion of biomarkers in research. For clinical purposes, it is recommended to use the DSM-5 nomenclature. The working group recommends that 'perioperative neurocognitive disorders' be used as an overarching term for cognitive impairment identified in the preoperative or postoperative period. This includes cognitive decline diagnosed before operation (described as neurocognitive disorder); any form of acute event (postoperative delirium) and cognitive decline diagnosed up to 30 days after the procedure (delayed neurocognitive recovery) and up to 12 months (postoperative neurocognitive disorder).