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A retrospective study on delirium type.

K Kobayashi1, O Takeuchi, M Suzuki

  • 1Department of Neuropsychiatry, Kanazawa University School of Medicine, Japan.

The Japanese Journal of Psychiatry and Neurology
|December 1, 1992
PubMed
Summary
This summary is machine-generated.

Delirium presentation varies by age and gender, with distinct types (hyperactive, hypoactive, mixed) impacting patient outcomes. Understanding these delirium types is crucial for predicting recovery and mortality risks.

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Area of Science:

  • Geriatrics
  • Neurology
  • Internal Medicine

Background:

  • Delirium is a common and serious condition in older adults.
  • Clinical presentation of delirium can vary significantly.
  • Understanding delirium subtypes is essential for effective management.

Purpose of the Study:

  • To retrospectively characterize delirium types in a cohort of 106 patients.
  • To investigate the association between delirium types, patient demographics, underlying diseases, and outcomes.

Main Methods:

  • Retrospective study of 106 consecutive patients with delirium.
  • Classification of delirium into hyperactive, hypoactive, and mixed types based on cardinal features.
  • Analysis of patient data including age, gender, underlying medical diseases, and outcomes.

Main Results:

  • Delirium incidence peaked in 70-year-olds, with gender and decade effects observed in incidence, type, and duration.
  • Delirium type correlated with age at onset, outcome, and underlying disease.
  • Hyperactive delirium was associated with a high recovery rate, while mixed delirium correlated with a high mortality rate.
  • Malignancy, hepatic, cerebrovascular, and bone/joint diseases showed a strong correlation with delirium occurrence.

Conclusions:

  • Delirium presentation and outcomes are influenced by patient age, gender, and underlying conditions.
  • The incidence of mixed delirium and the decrease in hyperactive delirium contributed to poorer outcomes.
  • Specific medical conditions are significantly associated with the occurrence of delirium.