Significance of lipopolysaccharide-binding protein (an acute phase protein) in monitoring critically ill patients.

Abstract:

INTRODUCTION:The present study was conducted to assess the value of serum concentration of lipopolysaccharide-binding protein (LBP) in patients with systemic inflammatory response syndrome (SIRS), sepsis and septic shock with respect to its ability to differentiate between infectious and noninfectious etiologies in SIRS and to predict prognosis. METHODS:This prospective cohort study was conducted in a multidisciplinary intensive care unit. Sixty-eight patients, admitted consecutively to the intensive care unit and who met criteria for SIRS, sepsis or septic shock were included. Serum LBP was measured using an immunochemiluminiscence assay. RESULTS:Serum levels of LBP were significantly increased in patients with SIRS (n = 40; median 30.6 microg/ml, range 9.2-79.5 microg/ml), sepsis (n = 19; median 37.1 microg/ml, range 11.8-76.2 microg/ml) and septic shock (n = 9; median 59.7 microg/ml, range 31.1-105 microg/ml), as compared with levels in the healthy volunteers (5.1 +/- 2.2 microg/ml; P < 0.0001). Serum LBP at study entry was statistically significantly lower in patients with SIRS than in those with septic shock (P < 0.014); no statistically significant difference existed between patients with SIRS and those with sepsis (P = 0.61). Specificity and sensitivity of an LBP concentration of 29.8 microg/ml to distinguish between infectious and noninfectious etiologies for SIRS were 50% and 74.2%, respectively. There was no statistically significant difference in LBP concentration between survivors and nonsurvivors in both groups of patients. Furthermore, in septic patients the LBP response appeared to exhibit a decreased magnitude. CONCLUSION:LBP is a nonspecific marker of the acute phase response and cannot be used as a diagnostic tool for differentiating between infectious and noninfectious etiologies of SIRS.

journal_name

Crit Care

authors

Prucha M,Herold I,Zazula R,Dubska L,Dostal M,Hildebrand T,Hyanek J

doi

10.1186/cc2386

keywords:

subject

Has Abstract

pub_date

2003-12-01 00:00:00

pages

R154-9

issue

6

eissn

1364-8535

issn

1466-609X

pii

cc2386

journal_volume

7

pub_type

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