Turkish Journal of Geriatrics 2018 , Vol 21, Issue 1
PREVALENCE OF MULTIDRUG-RESISTANT BACTERIAL COLONIZATION AND RISK FACTORS IN GERIATRIC NURSING HOME RESIDENTS
Oya Özlem EREN KUTSOYLU1, Vildan AVKAN OĞUZ1, Madina ABDULLAYEVA1, Nil TEKİN2, Nur YAPAR1
1Dokuz Eylül University, Faculty of Medicine İzmir, Turkey
2Narlıdere Geriatric Care Center and Residential Home İzmir, Turkey
DOI : 10.31086tjgeri.2018137965 Introduction: Aim of this study is to determine the frequency of nasal, axillary and rectal colonization by multidrug-resistant bacteria and the risk factors for colonization in nursing home residents.

Materials and Method: In this cross-sectional study, demographic data and risk factors of the residents were recorded. Data regarding patients" independence were collected using activities of daily living form. Nasal and axillary swabs were analyzed for methicillin-resistant Staphylococcus aureus and rectal swabs for vancomycin-resistant enterococci, extendedspectrum beta-lactamase-producing Enterobacteriaceae, and carbapenemase-producing Klebsiella pneumoniae.

Results: From 247 residents, 247 axillary, 246 nasal, and 245 rectal swabs were obtained. Median age was 85±6.7 and 190 (77%) residents were female. Swab samples from 75 (30%) residents yielded S. aureus, 8 (3.2%) of which were methicillin-resistant. Of the residents, 10 (4.1%) vancomycin-resistant enterococci, 17 (6.9%) extended-spectrum beta-lactamase-- producing Enterobacteriaceae, one (0.4%) carbapenemase-producing K. pneumoniae were found. Colonization with more than one type of multidrug-resistant bacteria was found in 3 (1.2%) residents. Colonization rates of multidrug-resistant bacteria were 2.7 times higher with antibiotic use in the last month and 3.1 times with immobility and enteral support. Colonization rate of multidrug-resistant bacteria increased with higher activities of daily living scores (p=0.004).

Conclusion: The prevalence of multidrug-resistant bacterial colonization was 12.9% and the risk factors have been changed according to bacterial species. Colonization rate increased with greater dependence in activities of daily living. In nursing homes, for management of multidrug-resistant bacterial infections, risk factors for colonization and surveillance analysis should be considered. Keywords : Nursing homes; Drug Resistance, Multiple; Methicillin-Resistant Staphylococcus