Journal
NEUROPSYCHOLOGY REVIEW
Volume 14, Issue 2, Pages 87-98Publisher
SPRINGER
DOI: 10.1023/B:NERV.0000028080.39602.17
Keywords
delirium; cognitive impairment; neuropsychological assessment; dementia; CAM-ICU
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Funding
- NIA NIH HHS [K23 AG01023-01A1] Funding Source: Medline
- NIMH NIH HHS [R01 MH065406-01A1] Funding Source: Medline
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Delirium is a common neurobehavioral syndrome that occurs across health care settings which is associated with adverse outcomes, including death. There are limited data on long-term cognitive outcomes following delirium. This report reviews the literature regarding relationships between delirium and cognitive impairment. Psych Info and Medline searches and investigation of secondary references for all English language articles on delirium and subsequent cognitive impairment were carried out. Nine papers met inclusion criteria and documented cognitive impairment in patients following delirium. Four papers reported greater cognitive impairment among patients with delirium than matched controls. Four papers reported higher incidence of dementia in patients with a history of delirium. One study found 1 of 3 survivors of critical illness with delirium developed cognitive impairment. The evidence suggests a relationship between delirium and cognitive impairment, although significant questions remain regarding the nature of this association. Additional research on delirium-related effects on long-term cognitive outcome is needed.
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