Delirium in postoperative nonventilated intensive care patients: Risk factors and outcomes

  • Serafim R
  • Dutra M
  • Saddy F
 et al. 
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BACKGROUND: Delirium features can vary greatly depending on the postoperative population studied; however, most studies focus only on high-risk patients. Describing the impact of delirium and risk factors in mixed populations can help in the development of preventive actions.

METHODS: The occurrence of delirium was evaluated prospectively in 465 consecutive nonventilated postoperative patients admitted to a surgical intensive care unit (SICU) using the confusion assessment method (CAM). Patients with and without delirium were compared. A multiple logistic regression was performed to identify the main risk factors for delirium in the first 24 h of admission to the SICU and the main predictors of outcomes.

RESULTS: Delirium was diagnosed in 43 (9.2%) individuals and was more frequent on the second and third days of admission. The presence of delirium resulted in longer lengths of SICU and hospital stays [6 days (3-13) vs. 2 days (1-3), p 
CONCLUSIONS: Delirium negatively impacts postoperative nonventilated patients. Risk factors can be used to detect high-risk patients in a mixed population of SICU patients.

Author-supplied keywords

  • Confusion assessment method
  • Delirium
  • Postoperative
  • Surgery

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  • Rodrigo Bernardo Serafim

  • Maximiliano F. Dutra

  • Felipe Saddy

  • Bernardo Tura

  • Jose Eduardo Couto de Castro

  • Luciana C. Villarinho

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