Antibiotic Susceptibility Pattern of Bacteria Causing Urinary Tract Infection
Abstract
Background: Urinary tract infection is one of the commonest infectious diseases worldwide. This study was carried out to determine the antimicrobial susceptibility pattern of bacteria causing urinary tract infection visiting Kathmandu University Hospital.
Methods: A total of 3,500 urine samples were processed and antibiotic resistance pattern was determined following Clinical Laboratory Standard Institute guidelines. Patients’ information was obtained after informed consent.
Results: Total number of samples with positive growth was 434 (12.40%). 331 (76.27%) of the isolates were Escherichia coli followed by Klebsiella pneumoniae, Enterococcus spp., Pseudomonas aeruginosa, Staphylococcus saprophyticus, Proteus mirabilis, Enterobacter species, Klebsiella oxytoca, Citrobacter freundii, Proteus vulgaris, Staphylococcus aureus and Acinetobacter species. Over all 224 (51.61%) were multidrug resistant strains. All strains were sensitive to colistin, vancomycin and linezolid. Over all ampicillin and cefazolin had least sensitivity. Multidrug resistant strains were detected more among elderly patients with complicated urinary tract infection and diabetes which was 25 (83.33%) compared to elderly patients with uncomplicated urinary tract infection and having no diabetes or any other comorbid illnesses which was only 11(22.22%) (p-value<0.05). 21 (70.00%) of the pregnant females had multidrug resistant isolates and only 18 (36.73%) of pediatric age group patients had multidrug resistant isolates (p-value<0.05)
Conclusion: Drug-resistant bacteria were observed in urine samples. Effective treatment and prevention of urinary tract infection need detailed microbiological diagnosis and drug susceptibility testing.
Keywords: ESBL; MDR; UTI
Copyright (c) 2022 Jatan Bahadur Sherchan, Anjana Dongol, Sanjaya Humagain, Anish Joshi, Siddha Rana Magar, Sarita Bhandari

This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.
Journal of Nepal Health Research Council JNHRC allows to read, download, copy, distribute, print, search, or link to the full texts of its articles and allow readers to use them for any other lawful purpose. Copyright is retained by author. The JNHRC work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International (CC BY-NC 4.0).