1. Comparison of Daily Versus Admission and Discharge Surveillance Cultures for Multidrug-Resistant Organism Detection in an Intensive Care Unit.
- Author
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Sansom SE, Shimasaki T, Dangana T, Lin MY, Schoeny ME, Fukuda C, Moore NM, Yelin RD, Bassis CM, Rhee Y, Cisneros EC, Bell P, Lolans K, Aboushaala K, Young VB, and Hayden MK
- Subjects
- Humans, Male, Female, Middle Aged, Feces microbiology, Chicago epidemiology, Aged, Patient Discharge, Vancomycin-Resistant Enterococci isolation & purification, Vancomycin-Resistant Enterococci genetics, Adult, Carrier State microbiology, Carrier State diagnosis, Carrier State epidemiology, RNA, Ribosomal, 16S genetics, Rectum microbiology, Anti-Bacterial Agents pharmacology, Epidemiological Monitoring, Intensive Care Units, Drug Resistance, Multiple, Bacterial genetics
- Abstract
Background: Admission and discharge screening of patients for asymptomatic gut colonization with multidrug-resistant organisms (MDROs) is a common approach to active surveillance, but its sensitivity for detecting colonization is uncertain., Methods: Daily rectal or fecal swab samples and associated clinical data were collected over 12 months from patients in one 25-bed medical intensive care unit (ICU) in Chicago, IL and tested for the following MDROs: vancomycin-resistant enterococci; third-generation cephalosporin-resistant Enterobacterales, including extended-spectrum β-lactamase-producing Enterobacterales; and carbapenem-resistant Enterobacterales. MDRO detection by (1) admission and discharge surveillance cultures or (2) clinical cultures were compared to daily surveillance cultures. Samples underwent 16S rRNA gene sequencing to measure the relative abundance of operational taxonomic units (OTUs) corresponding to each MDRO., Results: Compared with daily surveillance cultures, admission/discharge cultures detected 91% of prevalent MDRO colonization and 63% of MDRO acquisitions among medical ICU patients. Few (7%) MDRO carriers were identified by clinical cultures alone. Higher relative abundance of MDRO-associated OTUs and specific antibiotic exposures were independently associated with higher probability of MDRO detection by culture., Conclusions: Admission and discharge surveillance cultures underestimated MDRO acquisitions in an ICU. These limitations should be considered when designing sampling strategies for epidemiologic studies that use culture-based surveillance., Competing Interests: Potential conflicts of interest. M. K. H. reported conducting studies for which participating healthcare facilities received contributed antiseptic and cleaning products from Stryker (formerly Sage), Molnlycke, and Clorox outside of the submitted work. M. Y. L. reported conducting studies for which participating healthcare facilities received laboratory testing at no charge from OpGen and contributed antiseptic products from Stryker (formerly Sage) outside of the submitted work. V. B. Y. serves as a consultant to Vedanta Biosciences and Debiopharm; and has received an honorarium from Aimmune. All other authors report no potential conflicts. All authors have submitted the ICMJE Form for Disclosure of Potential Conflicts of Interest. Conflicts that the editors consider relevant to the content of the manuscript have been disclosed., (© The Author(s) 2024. Published by Oxford University Press on behalf of Infectious Diseases Society of America. All rights reserved. For commercial re-use, please contact reprints@oup.com for reprints and translation rights for reprints. All other permissions can be obtained through our RightsLink service via the Permissions link on the article page on our site—for further information please contact journals.permissions@oup.com.)
- Published
- 2024
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