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The Potential Regional Impact of Contact Precaution Use in Nursing Homes to Control Methicillin-Resistant Staphylococcus aureus
Bruce Y. Lee MD MBA, Ashima Singh MS, Sarah M. Bartsch MPH, Kim F. Wong PhD, Diane S. Kim BS, Taliser R. Avery MS, Shawn T. Brown PhD, Courtney R. Murphy PhD, S. Levent Yilmaz PhD and Susan S. Huang MD MPH
Infection Control and Hospital Epidemiology
Vol. 34, No. 2 (February 2013), pp. 151-160
Published by: Cambridge University Press on behalf of The Society for Healthcare Epidemiology of America
Stable URL: http://www.jstor.org/stable/10.1086/669091
Page Count: 10
You can always find the topics here!Topics: Nursing homes, Staphylococcus aureus, Hospital admissions, Infections, Hospital units, Contact potentials, Hospitals, Health care industry, Methicillin resistant staphylococcus aureus, Intensive care units
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Objective. Implementation of contact precautions in nursing homes to prevent methicillin-resistant Staphylococcus aureus (MRSA) transmission could cost time and effort and may have wide-ranging effects throughout multiple health facilities. Computational modeling could forecast the potential effects and guide policy making.Design. Our multihospital computational agent-based model, Regional Healthcare Ecosystem Analyst (RHEA).Setting. All hospitals and nursing homes in Orange County, California.Methods. Our simulation model compared the following 3 contact precaution strategies: (1) no contact precautions applied to any nursing home residents, (2) contact precautions applied to those with clinically apparent MRSA infections, and (3) contact precautions applied to all known MRSA carriers as determined by MRSA screening performed by hospitals.Results. Our model demonstrated that contact precautions for patients with clinically apparent MRSA infections in nursing homes resulted in a median 0.4% (range, 0%–1.6%) relative decrease in MRSA prevalence in nursing homes (with 50% adherence) but had no effect on hospital MRSA prevalence, even 5 years after initiation. Implementation of contact precautions (with 50% adherence) in nursing homes for all known MRSA carriers was associated with a median 14.2% (range, 2.1%–21.8%) relative decrease in MRSA prevalence in nursing homes and a 2.3% decrease (range, 0%–7.1%) in hospitals 1 year after implementation. Benefits accrued over time and increased with increasing compliance.Conclusions. Our modeling study demonstrated the substantial benefits of extending contact precautions in nursing homes from just those residents with clinically apparent infection to all MRSA carriers, which suggests the benefits of hospitals and nursing homes sharing and coordinating information on MRSA surveillance and carriage status.
© 2012 by The Society for Healthcare Epidemiology of America. All rights reserved.