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ORIGINAL ARTICLE
Year : 2012  |  Volume : 136  |  Issue : 5  |  Page : 842-849

Antibiotic resistance pattern among common bacterial uropathogens with a special reference to ciprofloxacin resistant Escherichia coli


Department of Microbiology, Jawaharlal Institute of Postgraduate Medical Education & Research, Puducherry, India

Correspondence Address:
Subhash Chandra Parija
Professor & Head, Department of Microbiology, Jawaharlal Institute of Postgraduate Medical Education & Research, Puducherry 605 006
India
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Source of Support: None, Conflict of Interest: None


PMID: 23287133

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Background & objectives: The resistance of bacteria causing urinary tract infection (UTI) to commonly prescribed antibiotics is increasing both in developing as well as in developed countries. Resistance has emerged even to more potent antimicrobial agents. The present study was undertaken to report the current antibiotic resistance pattern among common bacterial uropathogens isolated in a tertiary care hospital in south India, with a special reference to ciprofloxacin. Methods: A total of 19,050 consecutive urine samples were cultured and pathogens isolated were identified by standard methods. Antibiotic susceptibility was done by Kirby Bauer disk diffusion method. The clinical and demographic profile of the patients was noted. Results: Of the 19,050 samples, 62 per cent were sterile, 26.01 per cent showed significant growth, 2.3 per cent showed insignificant growth and 9.6 per cent were found contaminated. Significant association (P<0.001) of prior use of antibiotics in males, UTI in adults, gynaecological surgery in females, obstructive uropathy in males and complicated UTI in females with the occurrence of UTI with ciprofloxacin resistant Escherichia coli was noted. Significant association was noted in females with prior antibiotics, with prior urological surgery and in males with prior complicated UTI. There was no significant association with diabetes mellitus with the occurrence of UTI with ciprofloxacin resistant E. coli. Fluoroquinolone resistance was found to increase with age. Interpretations & conclusions: Ciprofloxacin resistance has emerged due to its frequent use. This resistance was seen more in the in-patients, elderly males and females. Also the resistance to other antibiotics was also high. Increasing antibiotic resistance trends indicate that it is imperative to rationalize the use of antimicrobials in the community and also use these conservatively.


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