J Korean Neuropsychiatr Assoc.  2014 Nov;53(6):418-425. 10.4306/jknpa.2014.53.6.418.

Impact of Delirium on Clinical Outcomes in Intensive Care Unit Patients: An Observational Study in a Korean General Hospital

• Sohn JH
• Na SH
• Shin CS
• Sohn I
• Oh JY
• An JS
• An SK
• Kim JJ
• Park JY

• KMID: 2383332
• DOI: http://doi.org/10.4306/jknpa.2014.53.6.418

Abstract

OBJECTIVES
The purpose of this study is to evaluate the impact of delirium on clinical outcomes in intensive care unit (ICU) patients in a Korean general hospital.
METHODS
All patients admitted to ICU from March 1, 2013 to October 31, 2013 were assessed by Confusion Assessment Method adapted for use in the ICU for delirium daily, and consistently comatose patients were excluded for analysis. Differences in clinical outcomes (mortality, length of hospital stay, length of ICU stay) were analyzed between delirious patients and non-delirious patients. Subsequently, the impact of delirium on clinical outcomes was analyzed with adjusting for covariates including surgery, age, emergent admission, presence of surgery, and severity of illness.
RESULTS
The analysis included 129 delirious patients and 469 non-delirious patients. As primary outcome, mortality, length of stay (hospital day, ICU-stay) were significantly high in the delirious group. The association remained the same after adjusting for the covariates.
CONCLUSION
The results correspond with those of previous research studies conducted in foreign ICU. Based on this observation that delirium also has an impact on clinical outcomes in Korean ICU, integrative and in-depth investigation on ICU delirium will be needed.

Keyword

Intensive care unit; Delirium; Length of stay; Mortality; Clinical outcome

MeSH Terms

Coma
Delirium*
Hospitals, General*
Humans
Intensive Care Units*
Length of Stay
Mortality
Observational Study*

Figure

• 

  Fig. 1 Flow chart of inclusion for delirium study in ICU patients. ICU : Intensive care unit, RASS : Richmond Agitation-Sedation Scale.

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