Extended-Spectrum β-Lactamase (ESBL) Genotypes among Multidrug-Resistant Uropathogenic Escherichia coli Clinical Isolates from a Teaching Hospital of Nepal

Urinary tract infections (UTI) represent the most common bacterial infections among patients visiting outpatient clinics of healthcare centers in Nepal. However, treatment of such infections is compounded by emergence and spread of multidrug-resistant uropathogens associated with extended-spectrum β...

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Main Authors: Roshan Pandit, Balkrishna Awal, Sumesh Shreekhanda Shrestha, Govardhan Joshi, Basista Prasad Rijal, Narayan Prasad Parajuli
Format: Article
Language:English
Published: Wiley 2020-01-01
Series:Interdisciplinary Perspectives on Infectious Diseases
Online Access:http://dx.doi.org/10.1155/2020/6525826
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author Roshan Pandit
Balkrishna Awal
Sumesh Shreekhanda Shrestha
Govardhan Joshi
Basista Prasad Rijal
Narayan Prasad Parajuli
author_facet Roshan Pandit
Balkrishna Awal
Sumesh Shreekhanda Shrestha
Govardhan Joshi
Basista Prasad Rijal
Narayan Prasad Parajuli
author_sort Roshan Pandit
collection DOAJ
description Urinary tract infections (UTI) represent the most common bacterial infections among patients visiting outpatient clinics of healthcare centers in Nepal. However, treatment of such infections is compounded by emergence and spread of multidrug-resistant uropathogens associated with extended-spectrum β-lactamases (ESBLs). In this study, we aimed to investigate the burden of antimicrobial resistance and occurrence of ESBL genes among clinical isolates of uropathogenic Escherichia coli at a tertiary care teaching hospital of Nepal. During the study period, we processed a total of 1,626 urinary tract specimens, isolated significant bacterial pathogens, and investigated their antimicrobial susceptibilities. Escherichia coli (n = 154), the predominant pathogen associated with UTI, was further investigated for the existence of ESBL enzymes by using conventional phenotypic as well as molecular approaches. Among suspected cases of UTI, we found that 15.2% were having UTI and female patients of the reproductive age group were more affected (p<0.05). Escherichia coli (154, 62.1%) was the key uropathogen, and majority (∼64.9%) of them were multidrug resistant (MDR). Among MDR E. coli isolates, 40.3% were producing extended-spectrum β-lactamases (ESBLs). bla-TEM (83.8%), bla-CTX-M (66.1%), and bla-SHV (4.8%) were common ESBL genotypes. Nitrofurantoin, gentamycin, and imipenem were the most effective antibiotics for ESBL-producing Escherichia coli isolates. It indicates that the high rates of multidrug-resistant Escherichia coli are frequent causes of UTI in our hospital. Nitrofurantoin and aminoglycosides are the most useful first-line drugs to be used in the cases of UTI. We recommend the regular investigation of drug resistance among all isolates and develop a useful antibiotic prescription policy in our country.
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institution Kabale University
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language English
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spelling doaj-art-9d7a86c2df1942a5a03b93a6f2cad3972025-02-03T06:46:52ZengWileyInterdisciplinary Perspectives on Infectious Diseases1687-708X1687-70982020-01-01202010.1155/2020/65258266525826Extended-Spectrum β-Lactamase (ESBL) Genotypes among Multidrug-Resistant Uropathogenic Escherichia coli Clinical Isolates from a Teaching Hospital of NepalRoshan Pandit0Balkrishna Awal1Sumesh Shreekhanda Shrestha2Govardhan Joshi3Basista Prasad Rijal4Narayan Prasad Parajuli5Department of Laboratory Medicine, Manmohan Memorial Institute of Health Sciences, Kathmandu, NepalDepartment of Laboratory Medicine, Manmohan Memorial Institute of Health Sciences, Kathmandu, NepalDepartment of Laboratory Medicine, Manmohan Memorial Institute of Health Sciences, Kathmandu, NepalDepartment of Laboratory Medicine, Manmohan Memorial Institute of Health Sciences, Kathmandu, NepalDepartment of Laboratory Medicine, Manmohan Memorial Institute of Health Sciences, Kathmandu, NepalDepartment of Clinical Laboratory Services, Manmohan Memorial Medical College and Teaching Hospital, Kathmandu, NepalUrinary tract infections (UTI) represent the most common bacterial infections among patients visiting outpatient clinics of healthcare centers in Nepal. However, treatment of such infections is compounded by emergence and spread of multidrug-resistant uropathogens associated with extended-spectrum β-lactamases (ESBLs). In this study, we aimed to investigate the burden of antimicrobial resistance and occurrence of ESBL genes among clinical isolates of uropathogenic Escherichia coli at a tertiary care teaching hospital of Nepal. During the study period, we processed a total of 1,626 urinary tract specimens, isolated significant bacterial pathogens, and investigated their antimicrobial susceptibilities. Escherichia coli (n = 154), the predominant pathogen associated with UTI, was further investigated for the existence of ESBL enzymes by using conventional phenotypic as well as molecular approaches. Among suspected cases of UTI, we found that 15.2% were having UTI and female patients of the reproductive age group were more affected (p<0.05). Escherichia coli (154, 62.1%) was the key uropathogen, and majority (∼64.9%) of them were multidrug resistant (MDR). Among MDR E. coli isolates, 40.3% were producing extended-spectrum β-lactamases (ESBLs). bla-TEM (83.8%), bla-CTX-M (66.1%), and bla-SHV (4.8%) were common ESBL genotypes. Nitrofurantoin, gentamycin, and imipenem were the most effective antibiotics for ESBL-producing Escherichia coli isolates. It indicates that the high rates of multidrug-resistant Escherichia coli are frequent causes of UTI in our hospital. Nitrofurantoin and aminoglycosides are the most useful first-line drugs to be used in the cases of UTI. We recommend the regular investigation of drug resistance among all isolates and develop a useful antibiotic prescription policy in our country.http://dx.doi.org/10.1155/2020/6525826
spellingShingle Roshan Pandit
Balkrishna Awal
Sumesh Shreekhanda Shrestha
Govardhan Joshi
Basista Prasad Rijal
Narayan Prasad Parajuli
Extended-Spectrum β-Lactamase (ESBL) Genotypes among Multidrug-Resistant Uropathogenic Escherichia coli Clinical Isolates from a Teaching Hospital of Nepal
Interdisciplinary Perspectives on Infectious Diseases
title Extended-Spectrum β-Lactamase (ESBL) Genotypes among Multidrug-Resistant Uropathogenic Escherichia coli Clinical Isolates from a Teaching Hospital of Nepal
title_full Extended-Spectrum β-Lactamase (ESBL) Genotypes among Multidrug-Resistant Uropathogenic Escherichia coli Clinical Isolates from a Teaching Hospital of Nepal
title_fullStr Extended-Spectrum β-Lactamase (ESBL) Genotypes among Multidrug-Resistant Uropathogenic Escherichia coli Clinical Isolates from a Teaching Hospital of Nepal
title_full_unstemmed Extended-Spectrum β-Lactamase (ESBL) Genotypes among Multidrug-Resistant Uropathogenic Escherichia coli Clinical Isolates from a Teaching Hospital of Nepal
title_short Extended-Spectrum β-Lactamase (ESBL) Genotypes among Multidrug-Resistant Uropathogenic Escherichia coli Clinical Isolates from a Teaching Hospital of Nepal
title_sort extended spectrum β lactamase esbl genotypes among multidrug resistant uropathogenic escherichia coli clinical isolates from a teaching hospital of nepal
url http://dx.doi.org/10.1155/2020/6525826
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