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Antimicrobial Susceptibility Sensitivity Pattern in Positive Urine Culture for Urinary Tract Pathogens from Tertiary Care Hospital

Sahana John, Agasa Ramu Mahesh

Abstract: Hospital specific monitoring studies aims to determine the prevalence of the type of microorganisms that causes urinary infections and to assess the antimicrobial sensitivity pattern. A hospital based short term prospective cross-sectional study was conducted at Sagar Hospital, Bengaluru from August to October 2020. Antimicrobial susceptibility in MIC test was performed for the isolated pathogens by using automated VITEK compact method and stratification was done according to ICU and NON-ICU patients with over 260 urine culture tests of the suspected in-patient for urinary tract infection. All antimicrobial susceptibility data was analyzed using WHONET software 5.6. Sixty-six urine culture tests showed culture positive, 41 from non-ICU and 23 from ICU. Gram-negative bacilli E.Coli (61% in ICU, 52% IN non-ICU) was the most prevalent bacterium, followed by Klebsiella pneumoniae ss. pneumoniae (9% in ICU, 20% IN non-ICU), and Candida albicans 9% prevalence was seen only in ICU isolates. The study shows that the rate of resistance towards ampicillin (100%) was high among gram negative isolates and penicillin (100%) among gram positive isolates. The susceptibility was favorable towards polymixinB, colistin in gram negative organisms and nitrofurantoin, vancomycin in gram positive organisms. The present study revealed that E.Coli is the predominant bacterial pathogen. It also demonstrates there is an increasing resistance to ampicillin (88.2%) and ESBL (90%) among UTI pathogens. While, polymixin B (100%) and colistin was found most effective among gram negative and nitrofurantoin was most effective among gram positive organisms. Keywords: Antibiotic, antimicrobial resistance, urinary tract infection
Keywords: Hospital / urinary tract infection / E.Coli / microorganisms / pathogens / gram / ICU / antimicrobial / susceptibility

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