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Cytokine balance and immunosuppressive changes at cardiac surgery.

BJA British Journal of Anaesthesia (Impact Factor: 4.24). 08/1996; 77(1):129-30. DOI: 10.1093/bja/77.1.129
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    ABSTRACT: Severe infection and sepsis are common causes of morbidity and mortality. Early diagnosis in critically ill patients is important to reduce these complications. The present study was conducted to determine the role of serum leptin at early diagnosis and differentiation between patients with manifestations of systemic inflammatory response syndrome (SIRS) and those with sepsis in patients suffering from a broad range of diseases in the intensive care unit (ICU) and its correlation with other biomarkers, such as C-reactive protein (CRP), interleukin-6 (IL-6) and tumor necrosis factor-alpha (TNF-alpha). One hundred and six adult ICU patients were observed. CRP, leptin, IL-6 and TNF-alpha were compared among the following groups: sepsis group (n = 40), SIRS group (n = 34) and non-SIRS group (n = 32). Patients were classified into these groups at the time of blood analysis for these biomarkers. Non-significant differences were observed among patients in different groups regarding biomarkers on the day of ICU admission. On the second day of ICU admission, significant elevation of leptin, IL-6 and TNF-alpha occurred in the SIRS and sepsis groups. Delayed elevation of CRP started on the fourth day of ICU admission in patients with sepsis. At the end of the first week, only CRP level was elevated in septic patients. Serum leptin correlates well with serum level of IL-6 and TNF-alpha. Leptin helps to differentiate SIRS from non-SIRS patients. CRP is a classic marker of sepsis but is of late onset.
    Critical care (London, England) 03/2010; 14(2):R33. · 4.72 Impact Factor
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    ABSTRACT: Background. The use of inflammatory markers to follow up critically ill patients is controversial. The short time frame, the need for frequent and serial measurement of biomarkers, the presence of soluble receptor and their relatively high cost are the major drawbacks. Our study's objective is to compare the prognostic values of serum TNF- α and SOFA score monitoring in critically ill patients. Patients and Methods. A total of ninety patients were included in the study. Forty-five patients developed septic complication (sepsis group). Forty-five patients were critically ill without evidence of infectious organism (SIRS group). Patients' data include clinical status, central venous pressure, and laboratory analysis were measured. A serum level of TNF- α and SOFA score were monitored. Results. Monitoring of TNF- α revealed significant elevation of TNF- α at 3rd and 5th days of ICU admission in both groups. Monitoring of SOFA score revealed significant elevation of SOFA scores in both groups throughout their ICU stay, particularly in nonsurvivors. Positive predictive ability of SOFA score was demonstrated in critically ill patients. Conclusion. Transient significant increase in serum levels of TNF- α were detected in septic patients. Persistent elevation of SOFA score was detected in nonsurvivor septic patients. SOFA score is an independent prognostic value in critically ill patients.
    BioMed research international. 01/2013; 2013:258029.

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