Journal of Antimicrobial Chemotherapy (1999) 44, 113-116
© 1999 The British Society for Antimicrobial Chemotherapy
Brief report |
Antimicrobial resistance patterns in urinary isolates from nursing home residents. Fifteen years of data reviewed
a Foundation Nursing Homes SVB, PO Box 522, 6460 AM Kerkrade b University Hospital Maastricht, Department of Medical Microbiology, PO Box 5800, 6202 AZ Maastricht c Nursing Home Zeven Bronnen, Lovendaalhoeve 30, 6225 AG Maastricht, The Netherlands
The antibiotic resistance patterns of Gram-negative bacteria isolated from nursing home patients between 1983 and 1997 were analysed. Escherichia coli was the most prevalent isolate (48%) followed by Proteus spp. (26%) and other Enterobacteriaceae (20%). During the study period, the susceptibility of E. coli decreased for co-trimoxazole (79% to 62%), increased for nitrofurantoin (79% to 91%) and remained unchanged for amoxycillin (41%). Susceptibility to norfloxacin, available from 1990, decreased from 87% to 71%. Similar trends were observed when the susceptibilities of all Gram-negative urinary pathogens were combined. The changes in susceptibility can probably be attributed to the empirical prescribing practices in the nursing homes studied.
* Corresponding author. Tel: +31-43-3874644; Fax: +31-43-3876643; E-mail: pter{at}lmib.azm.nl
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