Microbial Translocation Contribute to Febrile Episodes in Adults with Chemotherapy-Induced Neutropenia

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ID: 111652
2013
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Abstract
In this study we sought to determine the contribution of microbial translocation to febrile episodes with no attributable microbiological cause (Fever of Unknown Origin, FUO) in an adult febrile neutropaenic cohort. Endotoxin concentrations were measured with the chromogenic Limulus Amoebocyte Assay and used as a direct measure of bacterial products whilst soluble CD14 (sCD14), measured with ELISA was selected as an indicator of the early host response to endotoxins. Endotoxin concentrations in this cohort were generally elevated but did not differ with the presentation of fever. Further stratification of the febrile episodes based on the microbiological findings revealed significantly (p = 0.0077) elevated endotoxin concentrations in FUO episodes compared with episodes with documented bacterial and viral findings. sCD14 concentrations were however, elevated in febrile episodes (p = 0.0066) and no association was observed between sCD14 concentration and microbiological findings. However, FUO episodes and episodes with Gram-negative bacteraemia were associated with higher median sCD14 concentrations than episodes with Gram-positive bacteraemia (p = 0.030). In conclusion, our findings suggest that in the absence of microbiological findings, microbial translocation could contribute to febrile episodes in an adult neutropaenic cohort. We further observed an association between prophylactic antibiotic use and increased plasma endotoxin concentrations (p = 0.0212).
Reference Key
wong2013plosmicrobial Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Michelle Wong;Babilonia Barqasho;Lars Öhrmalm;Thomas Tolfvenstam;Piotr Nowak;
Journal PloS one
Year 2013
DOI
10.1371/journal.pone.0068056
URL
https://doi.org/10.1371/journal.pone.0068056##pone.0068056-Bodey1
Keywords
bacteria adults antibiotics endotoxins antibiotic prophylaxis Fevers Blood plasma Gram negative bacteria

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