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VOLUME 20 , ISSUE 9 ( 2016 ) > List of Articles

RESEARCH ARTICLE

Bronchoalveolar lavage fluid cytokine bead array profile for prognostication of ventilated trauma patients

Amit Gupta, Kapil Dev Soni, Richa Aggrawal

Keywords : Bronchoalveolar lavage, cytokine bead array, prognosis, trauma, ventilator-associated pneumonia

Citation Information : Gupta A, Soni K D, Aggrawal R. Bronchoalveolar lavage fluid cytokine bead array profile for prognostication of ventilated trauma patients. Indian J Crit Care Med 2016; 20 (9):513-517.

DOI: 10.4103/0972-5229.190375

License: CC BY-ND 3.0

Published Online: 01-09-2016

Copyright Statement:  Copyright © 2016; Jaypee Brothers Medical Publishers (P) Ltd.


Abstract

Aim of Study: Ventilator-associated pneumonia (VAP) is a common cause of mortality in trauma patients admitted to Intensive Care Units. The outcome of such patients may be dependent on local host immune response, which may be best reflected in studies using bronchoalveolar lavage (BAL) fluid. The present study was conducted to ascertain the cytokine profile of BAL using the cytometric bead array (CBA) in a flow cytometer and to correlate the levels of Th-1/Th-2 cytokines in BAL with the clinical outcome of ventilated trauma patients. Patients and Methods: BAL was collected from the patients with suspected VAP. CBA was performed to assess the levels of interleukin-4 (IL-4), IL-6, IL-8, IL-1 β, interferon gamma (IFN-γ), and tumor necrosis factor-alpha in the BAL samples. After acquiring the BAL samples on the flow cytometer, the results were generated using FCAP Array™ software. The cytokine profile was correlated to clinical outcomes. Results: A total of forty patients were enrolled during the study period. Of these, 12 patients (30%) had confirmed VAP and 8 (20%) patients had a fatal outcome. The levels of IL-8 and IFN-γ correlated significantly with the development of VAP and elevated IL-6 in BAL was associated with a poor outcome. Conclusion: A proinflammatory response in the form of elevated IL-6 and IL-8 correlated poorly with the clinical outcome. Th-1 response was significantly reduced in patients with VAP. A proinflammatory response in the form of elevated IL-6 and IL-8 correlated poorly with the clinical outcome.


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