• Critical care medicine · Aug 2013

    Aerosolization of Acinetobacter baumannii in a trauma ICU*.

    • L Silvia Munoz-Price, Yovanit Fajardo-Aquino, Kristopher L Arheart, Timothy Cleary, Dennise DePascale, Louis Pizano, Nicholas Namias, Jesabel I Rivera, Jessica A O'Hara, and Yohei Doi.
    • Department of Medicine, Miller School of Medicine, University of Miami, Miami, FL, USA.
    • Crit. Care Med.. 2013 Aug 1;41(8):1915-8.

    ObjectiveTo establish the presence of air contamination with Acinetobacter baumannii in the trauma ICU.DesignPoint prevalence microbiological surveillances.SettingsA 1,500-bed public teaching hospital in the Miami metro area.PatientsTrauma ICU patients.MeasurementsPulsed field electrophoresis was performed on environmental and clinical isolates to determine the association of any isolates from the air with clinical isolates.Main ResultsOut of 53 patient areas cultured, 12 (22.6%) had their air positive for A. baumannii. The presence of an A. baumannii-positive patient (underneath the plate) was associated with positive air cultures for A. baumannii (11 of 21 [52.4%] vs 0 of 25 [0%]; p < 0.0001). However, we were not able to find differences in air contamination based on the presence of A. baumannii in respiratory secretions versus absence (p = 1.0). Air and clinical isolates were found to be clonally related.ConclusionsAerosolization of A. baumannii in the ICUs is a concern, and its role in the transmission of this organism among patients should be further clarified.

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