Journal
CRITICAL CARE
Volume 18, Issue 3, Pages -Publisher
BMC
DOI: 10.1186/cc13887
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Funding
- National Council for Scientific and Technological Development (CNPq)
- FAPEMIG PqG [1008860]
- NENASC project (PRONEX program CNPq/FAPESC)
- INCT-TM
- Universidade do Extremo Sul Catarinense
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Introduction: Delirium is a common occurrence in critically ill patients and is associated with an increase in morbidity and mortality. Septic patients with delirium may differ from a general critically ill population. The aim of this investigation was to study the relationship between systemic inflammation and the development of delirium in septic and non-septic critically ill patients. Methods: We performed a prospective cohort study in a 20-bed mixed intensive care unit (ICU) including 78 (delirium = 31; non-delirium = 47) consecutive patients admitted for more than 24 hours. At enrollment, patients were allocated to septic or non-septic groups according to internationally agreed criteria. Delirium was diagnosed using the Confusion Assessment Method for the Intensive Care Unit (CAM-ICU) during the first 72 hours of ICU admission. Blood samples were collected within 12 hours of enrollment for determination of tumor necrosis factor (TNF)-alpha, soluble TNF Receptor (STNFR)-1 and -2, interleukin (IL)-1 beta, IL-6, IL-10 and adiponectin. Results: Out of all analyzed biomarkers, only STNFR1 (P = 0.003), STNFR2 (P = 0.005), adiponectin (P = 0.005) and IL-1 beta (P < 0.001) levels were higher in delirium patients. Adjusting for sepsis and sedation, these biomarkers were also independently associated with delirium occurrence. However, none of them were significant influenced by sepsis. Conclusions: STNFR1, STNFR2, adiponectin and IL-1 beta were associated with delirium. Sepsis did not modify the relationship between the biomarkers and delirium occurrence.
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