viernes, 15 de junio de 2012

Methicillin-Resistant Staphylococcus aureus... [J Am Geriatr Soc. 2012] - PubMed - NCBI

MRSA in Nursing Homes Linked to Insufficient Cleaning

High methicillin-resistant Staphylococcus aureus (MRSA) contamination in nursing homes is linked to insufficient cleaning practices in the facilities’ common areas, according to a new report funded by AHRQ and the NIH’s Institute on Aging. The article, Methicillin-Resistant Staphylococcus aureus Burden in Nursing Homes Associated with Environmental Contamination of Common Areas, published in the June 5 online issue of the Journal of the American Geriatrics Society, finds that higher levels of MRSA were found in nursing homes where staff cleaned rooms less frequently and spent less time cleaning each room. This conclusion was further supported by the finding that facilities with more MRSA contamination in common areas tended to have higher overall MRSA levels, even when accounting for the amount of MRSA brought in by newly admitted residents. Select to access the abstract on PubMed.®

J Am Geriatr Soc. 2012 Jun;60(6):1012-8. doi: 10.1111/j.1532-5415.2012.03978.x. Epub 2012 Jun 5.

Methicillin-Resistant Staphylococcus aureus Burden in Nursing Homes Associated with Environmental Contamination of Common Areas.

Murphy CR, Eells SJ, Quan V, Kim D, Peterson E, Miller LG, Huang SS.

Source

School of Social Ecology and Division of Infectious Diseases, University of California at Irvine, Irvine, California.

Abstract

OBJECTIVES:

To determine whether environmental cleaning and contamination are associated with variation in the prevalence of methicillin-resistant Staphylococcus aureus (MRSA) between nursing homes.

DESIGN:

Prospective study of environmental contamination and cleaning quality.

SETTING:

Nursing home.

PARTICIPANTS:

Ten California nursing homes.

MEASUREMENTS:

Nursing homes were categorized into two groups based upon high and low differences in MRSA point prevalence and admission prevalence (delta prevalence) from nares screenings of nursing home residents. Environmental cleaning and infection control practices were evaluated by culturing common area objects for MRSA, assessing removal of intentionally applied marks visible only under ultraviolet (UV) light, and administering surveys on infection control and cleaning.

RESULTS:

Overall, 16% (78/500) of objects were MRSA positive, and 22% (129/577) of UV-visible marks were removed. A higher proportion of MRSA-positive objects was found in the high (19%) than in low (10%) nursing home groups (P = .005). Infection control and cleaning policies varied, including the frequency of common room cleaning (median 2.5 times daily, range 1-3 times daily) and time spent cleaning per room (median 18 minutes, range 7-45 minutes). In multivariate models, MRSA-positive objects were associated with high delta prevalence nursing homes (odds ratio (OR) = 2.8, P = .005), less time spent cleaning each room (OR = 2.9, P < .001), and less-frequent cleaning of common rooms (OR = 1.5, P = .01).

CONCLUSION:

Substantial variation was found in MRSA environmental contamination, infection control practices, and cleaning quality. MRSA environmental contamination was associated with greater differences between MRSA point and admission prevalence, less-frequent common room cleaning, and less time spent cleaning per room, which suggests that modifying cleaning practices may reduce MRSA environmental contamination and burden in nursing homes.
© 2012, Copyright the Authors Journal compilation © 2012, The American Geriatrics Society.