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Cognitive deficits in delirium: assessment over time
1Department of Psychiatry and Behavioral Sciences, Emory University School of Medicine, Atlanta, GA.
Psychopharmacology Bulletin
|January 1, 1992
Summary
Delirium, a transient brain syndrome, presents fluctuating cognitive and attention deficits. Residual cognitive impairments can persist for months after delirium resolution, potentially indicating underlying brain disorders.
Area of Science:
- Neurology
- Geriatrics
- Psychiatry
Background:
- Delirium is a transient organic brain syndrome with diverse symptoms.
- Fluctuating symptom presentation complicates delirium research.
- Pre-existing brain conditions, like Alzheimer's and Parkinson's disease, are risk factors.
Purpose of the Study:
- To systematically investigate cognitive deficits associated with delirium.
- To quantify the nature and duration of cognitive impairments post-delirium.
Main Methods:
- Systematic review of studies on delirium and cognitive function.
- Quantitative analysis of cognitive deficits before, during, and after delirium episodes.
Main Results:
- Cognitive deficits in attention, perception, and memory are characteristic of delirium.
- Documented cognitive deficits persist for months after delirium resolution.
- Residual deficits may manifest as persistent confusion or reflect underlying neurological disorders.
Conclusions:
- Delirium is associated with significant, often persistent, cognitive deficits.
- Further research is needed to understand the long-term impact and underlying mechanisms of these deficits.
- Identifying and managing residual cognitive impairment is crucial for patient outcomes.