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Dynamic Monitoring of Immune-related Indicators to Assess Immune Function and Predict Disease Severity and Outcome in Critically Ill Patients |
TAO Dan, LI Peng |
First Affiliated Hospital of Xi'an Jiao Tong University Clinical Laboratory Shaanxi Xi'an 710061) |
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Abstract 【Objective】To investigate the value of dynamic monitoring of immune-related indexes to evaluate immune function and predict disease severity and outcome in the critically ill patients. 【Methods】A total of 53 patients admitted to EICU of our hospital were selected in this study. According to the 28-day mortality, patients were divided into two groups: the survival group (n=36) and the death group (n=17). The peripheral venous blood on the 1st, 3rd, and 7th day after admission were collected for the inflammation indicators detection including interleukin-6 (IL-6),IL-8 and IL-10 and TNF-α, as well as the immunologically relevant indicators detection including PCT, hs-CRP, immunoglobulin (IgA, IgM, IgG), CD4+, CD8+, CD4+/CD8+. The patients' immune-related indicators were analyzed to assess critical immune function and predict the severity and outcome of the disease. 【Results】The IL-10 level in the survival group on the 3rd day of EICU was significantly lower than that in the death group (P<0.05). On the 7th day, the survival group had lower PCT level and higher levels of IL-6 and IL-8 than those of the death group (P<0.05). The levels of IgA, IgM and CD8+ in the survival group on the 1st day were significantly lower than those in the death group (P<0.05). The levels of CD4+ and CD4+/CD8+ on the 7th day in the survival group were significantly higher than those in the death group (P<0.05). The sensitivity and specificity of PCT (7th day), IL-10 (3rd day), CD8+, APACHE Ⅱ (acute physiology and chronic health status scoring system) score and SOFA (systemic infection-related organ failure evaluation system) score in the diagnosis of 28-day mortality in critically ill patients were relatively high (P<0.05). 【Conclusion】The immune dysfunction degree is negatively correlated with the prognosis of critically ill patients, which will increase the mortality rate. PCT, IL-10, and CD8+ can predict the risk of the poor prognosis and mortality.
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Received: 06 November 2018
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