AI Article Synopsis
- - The study aimed to investigate air contamination with the bacteria Acinetobacter baumannii in a trauma ICU, using point prevalence microbiological surveillance in a large public teaching hospital in Miami.
- - Out of 53 sampled patient areas, 12 (22.6%) had air samples testing positive for A. baumannii, with a significant association found between patients carrying the bacteria and positive air cultures.
- - The findings raise concerns about the aerosolization of A. baumannii in the ICU and suggest the need for further research to understand its transmission among patients.
Article Abstract
Objective: To establish the presence of air contamination with Acinetobacter baumannii in the trauma ICU.
Design: Point prevalence microbiological surveillances.
Settings: A 1,500-bed public teaching hospital in the Miami metro area.
Patients: Trauma ICU patients.
Measurements: Pulsed field electrophoresis was performed on environmental and clinical isolates to determine the association of any isolates from the air with clinical isolates.
Main Results: Out 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.
Conclusions: Aerosolization 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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| http://dx.doi.org/10.1097/CCM.0b013e31828a39c0 | DOI Listing |
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