scholarly journals HIGHER CTX-M, TEM, AND SHV EXTENDED-SPECTRUM BETA-LACTAMASE PLASMID GENE COMBINATION FREQUENCY IN ESBL PRODUCING KLEBSIELLA PNEUMONIAE COMPARED WITH ESBL PRODUCING ESCHERICHIA COLI

2016 ◽  
Vol 4 ◽  
pp. 732-739
Author(s):  
Vita Skuja ◽  
Katrīna Pekarska ◽  
Aleksejs Derovs ◽  
Ludmila Vīksna ◽  
Linda Piekuse ◽  
...  
Keyword(s):  
Klebsiella Pneumoniae ◽  
University Hospital ◽  
Beta Lactamase ◽  
Combination Frequency ◽  
M Gene ◽  
Extended Spectrum Beta Lactamase ◽  
E Coli ◽  
Plasmid Gene ◽  
Esbl Gene ◽  
Bacterial Plasmid

Introduction:Extended-spectrum beta-lactamase (ESBL) producing Enterobacteriaceae confer antibiotic resistance to broad-spectrum penicillins, cephalosporins, using ESBL genes CTX-M, TEM, SHV, which are encoded in bacterial plasmid genome. Methods: We compared plasmid CTX-M, TEM, and SHV ESBL gene combinations in ESBL producing Escherichia coliand Klebsiella pneumoniae. Altogether, 136 ESBL producing Enterobacteriaceae isolation cases were analyzed. Results:The ESBL producing Enterobacteriaceae, mostly K. pneumoniae (n = 66; 48.53%), E. coli (n = 36; 26.47%), were isolated from 52 (38.2%) female and 84 (61.8%) male patients from Riga East Clinical University Hospital. Overall,132 isolates (97.06%) registered positive for the plasmid CTX-M gene, 97 isolates (71.32%) for the plasmid TEM gene, and 87 isolates (63.97%) for the plasmid SHV gene.Patients with the three ESBL plasmid gene (CTX-M+ TEM+ SHV+) combination were significantly older (67.11 ± 14.16 years) than patients with other gene combinations (59.63 ± 18.14 years; p = 0.047). Plasmid SHV gene frequency was higher in K. pneumoniae (p < 0.001). The K. pneumoniae mostly presented with the three plasmid ESBL gene (CTX-M+ TEM+ SHV+) combination, whereas E. coli presented with other gene combinations (p = 0.014). Conclusions: Klebsiella Pneumoniae, more often, presented with the plasmid SHV ESBL gene and the three ESBL gene (CTX-M+ TEM+ SHV+) combination, compared to E. coli. Older patients with ESBL producing Enterobacteriaceae infection, more often, presented with the three ESBL gene (CTX-M+ TEM+ SHV+) combination, compared to younger patients with the infection.

scholarly journals Incidence and Antimicrobial Susceptibility of Escherichia coli and Klebsiella pneumoniae with Extended-Spectrum β-Lactamases in Community- and Hospital-Associated Intra-Abdominal Infections in Europe: Results of the 2008 Study for Monitoring Antimicrobial Resistance Trends (SMART)

2010 ◽  
Vol 54 (7) ◽  
pp. 3043-3046 ◽  
Author(s):  
Stephen P. Hawser ◽  
Samuel K. Bouchillon ◽  
Daryl J. Hoban ◽  
Robert E. Badal ◽  
Rafael Cantón ◽  
...  
Keyword(s):  
Escherichia Coli ◽  
Antimicrobial Resistance ◽  
Klebsiella Pneumoniae ◽  
Antimicrobial Susceptibility ◽  
Beta Lactamase ◽  
Extended Spectrum Beta Lactamase ◽  
E Coli ◽  
Extended Spectrum ◽  
Abdominal Infections

ABSTRACT From 2002 to 2008, there was a significant increase in extended-spectrum beta-lactamase (ESBL)-positive Escherichia coli isolates in European intra-abdominal infections, from 4.3% in 2002 to 11.8% in 2008 (P < 0.001), but not for ESBL-positive Klebsiella pneumoniae isolates (16.4% to 17.9% [P > 0.05]). Hospital-associated isolates were more common than community-associated isolates, at 14.0% versus 6.5%, respectively, for E. coli (P < 0.001) and 20.9% versus 5.3%, respectively, for K. pneumoniae (P < 0.01). Carbapenems were consistently the most active drugs tested.

scholarly journals Molecular characterization of extended-spectrum beta-lactamase producing Enterobacteriaceae in a Saudi Arabian tertiary hospital

2014 ◽  
Vol 8 (03) ◽  
pp. 282-288 ◽  
Author(s):  
Hoda Hassan ◽  
Baha Abdalhamid
Keyword(s):  
Tertiary Hospital ◽  
Multidrug Resistant ◽  
Beta Lactamase ◽  
M Gene ◽  
Extended Spectrum Beta Lactamase ◽  
E Coli ◽  
Extended Spectrum ◽  
Vitek 2 ◽  
High Level

Introduction: The aim of this study was to determine the prevalence of extended-spectrum beta-lactamase (ESBL) producing Escherichia coli (E. coli), Klebsiella pneumoniae (K. pneumoniae), and Proteus mirabilis (P. mirabilis). In addition, different methods for detection of these enzymes, including the newly introduced CHROMagar ESBL, were evaluated. Methodology: A total of 382 Enterobacteriaceae clinical isolates were obtained from King Fahad Specialist Hospital – Dammam, during 2011 and screened for production of ESBL using advanced expert system of Vitek 2, CHROMagar and ESBL-E-strips. PCR assay was used to detect blaTEM, blaSHV, and blaCTX-M genes. Susceptibility to a panel of antibiotics was determined. Results: The overall proportion of ESBL-producing enterobacterial isolates was 30.6%, which was higher in E. coli (35.8%) than in K. pneumoniae (25.7%). ESBL genotypes showed remarkable increase in the CTX-M (97.4%) compared to SHV (23.1%). The predominant ESBL was CTX-M- 15 (92.1 %). No TEM ESBL was detected in this study. The Vitek2 showed the highest sensitivity (100%), and the CHROMagar had the lowest specificity (97.3%) compared to the molecular method. All isolates were susceptible to imipenem and meropenem. Conclusions: This study confirms a high level of blaCTX-M positive ESBL isolates are circulating in the Eastern Province of Saudi Arabia. The trend of a multidrug-resistant profile associated with the recovery of the blaCTX-M gene is alarming.

Extended-Spectrum Beta-Lactamase-Producing E. Coli and Klebsiella Pneumoniae in Children at University Pediatric Clinic in Skopje

2009 ◽  
Vol 2 (1) ◽  
pp. 36-41 ◽  
Author(s):  
Ana Kaftandzhieva ◽  
Vesna Kotevska ◽  
Gordana Jankoska ◽  
Biljana Kjurcik-Trajkovska ◽  
Zhaklina Cekovska ◽  
...  
Keyword(s):  
Klebsiella Pneumoniae ◽  
Beta Lactamase ◽  
Extended Spectrum Beta Lactamase ◽  
E Coli ◽  
Pediatric Clinic ◽  
Extended Spectrum

scholarly journals Prevalence of Extended Spectrum Beta-Lactamase Producing Escherichia coli and Klebsiella species from Urinary Specimens of Children attending Friendship International Children’s Hospital

2017 ◽  
Vol 5 (1) ◽  
pp. 32-38 ◽  
Author(s):  
Ujjwal Rimal ◽  
Shovana Thapa ◽  
Roshani Maharjan
Keyword(s):  
Escherichia Coli ◽  
Klebsiella Pneumoniae ◽  
Beta Lactamase ◽  
Disc Diffusion ◽  
Extended Spectrum Beta Lactamase ◽  
E Coli ◽  
Extended Spectrum ◽  
Significant Bacteriuria ◽  
Klebsiella Spp ◽  
Esbl Producers

Extended-spectrum β-lactamase producing E. coli and K. pneumoniae is a serious threat to the patients. These organisms are major extended spectrum beta lactamase (ESBL) producers. The objective of this study was to determine the prevalence of Extended spectrum β- lactamase producing strains of Escherichia coli and Klebsiella spp isolates from the urine sample of children visiting International Friendship Children Hospital. During the seven months, between June 2016 to December 2016, 1018 mid-stream urine samples(MSU) were collected from patients suspected of having UTI. The samples were investigated by conventional semi-quantitative culture technique and identification of E. coli and Klebsiella spp. was done by microscopy and biochemical test. Antibiotic susceptibility test of isolates was performed by modified Kirby Bauer Disc diffusion test. ESBL screening test was done by using 3rd generation Cephalosporin and confirmation done by combination disc diffusion method. Out of total 1018 MSU samples investigated, 200(19.64%) isolates of E. coli and 28(2.7%) isolates of Klebsiella spp. making a total of 228(22.39%) were found to cause significant bacteriuria. 76(33.33%) isolates, from those causing significant bacteriuria, were Multi-drug resistant organisms. Out of 228 isolates, 54(23.68%) were ESBL producers, that includes 51(25.5%) Escherichia coli and 3(12.5%) Klebsiella pneumoniae. ESBL producers were more common in in-patient (36.17%) than out-patient (20.44%). Most of the ESBL producers were resistance to amoxicillin, followed by Cotrimoxazole and Ciprofloxacin respectively. They were highly sensitive to Imipenem, Tigecycline, Amikacin, Piperacillin-Tazobactam, and Nitrofurantoin. High prevalence of ESBL producing E. coli and Klebsiella pneumoniae was found among children. Regular and routine monitoring of ESBL producing isolates is essential.Nepal Journal of Biotechnology. Dec. 2017 Vol. 5, No. 1: 32-38

scholarly journals Prevalence of Escherichia coli and Klebsiella pneumoniae, Producing Extended-Spectrum Beta-Lactamase (ESBLs) from Clinical Specimen in Khuzestan, Iran

2021 ◽  
Vol In Press (In Press) ◽  
Author(s):  
Sahar Besharati Zadeh ◽  
Pegah Shakib ◽  
Mohammad Reza Zolfaghari ◽  
Ahmad Farajzadeh Sheikh
Keyword(s):  
Escherichia Coli ◽  
Antibiotic Resistance ◽  
Klebsiella Pneumoniae ◽  
Clinical Specimen ◽  
Diffusion Method ◽  
Beta Lactamase ◽  
Extended Spectrum Beta Lactamase ◽  
E Coli ◽  
Extended Spectrum ◽  
Sensitivity Pattern

Background: A major problem in the treatment of the infectious diseases healthcare centers is extended-spectrum beta-lactamase (ESBL)-producing bacteria. Objectives: The aim of present study was to identify the antibiotic sensitivity pattern and prevalence of the blaCTX, blaTEM, and blaSHV genes in Escherichia coli and Klebsiella pneumoniae strains. Methods: In this study, E. coli and K. pneumoniae specimens were collected in Shushtar hospitals, Khuzestan (southwest Iran), from March to October 2015. Sensitivity antibiotic pattern performed by disc diffusion method. Double disc synergy test (DDST) done for identifying ESBLs isolates and PCR for blaTEM, blaSHV, and blaCTX-M genes. Results: One hundred E. coli and 30 K. pneumoniae isolates were collected from different specimens. The highest rates of antibiotic resistance related to cefotaxime and aztreonam in E. coli and K. pneumoniae. ESBL-harboring K. pneumoniae and E. coli were 13.5 and 28%, respectively. Overall, bla TEM was the most prevalent ESBL gene. Conclusions: In this study, the rate of antibiotic resistance was high, and due to the carrying of coding genes on mobile genetic elements and the ability of these elements to carry genes that create resistance to other antibiotic families, identification and isolation of these isolates are essential to find effective antibiotics and eliminate the infection.

scholarly journals Emergence and rapid global dissemination of CTX-M-15-associated Klebsiella pneumoniae strain ST307

2018 ◽  
Author(s):  
Kelly L. Wyres ◽  
Jane Hawkey ◽  
Marit A.K. Hetland ◽  
Aasmund Fostervold ◽  
Ryan R. Wick ◽  
...  
Keyword(s):  
Antimicrobial Resistance ◽  
Klebsiella Pneumoniae ◽  
Carbapenem Resistance ◽  
Beta Lactamase ◽  
First Report ◽  
Extended Spectrum Beta Lactamase ◽  
Esbl Gene ◽  
Resistance Determinants ◽  
Extended Spectrum ◽  
Globally Distributed

AbstractRecent reports indicate the emergence of a new carbapenemase producing Klebsiella pneumoniae clone, ST307. Here we show that ST307 emerged in the mid-1990s (nearly 20 years prior to its first report), is already globally distributed and is intimately associated with a conserved plasmid harbouring the blaCTX-M-15 extended-spectrum beta-lactamase (ESBL) gene plus other antimicrobial resistance determinants. Our findings support the need for enhanced surveillance of this widespread ESBL clone in which carbapenem resistance is now emerging.

scholarly journals Extended - spectrum beta - lactamase E. coli and K. pneumoniae urinary tract infections

2020 ◽  
Author(s):  
Prayong Vachvanichsanong ◽  
Edward B McNeil ◽  
Pornsak Dissaneewate
Keyword(s):  
Urinary Tract ◽  
Urinary Tract Infections ◽  
Imaging Study ◽  
University Hospital ◽  
Beta Lactamase ◽  
Extended Spectrum Beta Lactamase ◽  
E Coli ◽  
Recurrent Uti ◽  
Extended Spectrum ◽  
Tract Infections

Abstract Background: The prevalences of extended - spectrum beta - lactamase (ESBL) Escherichia coli ( E . coli ) and Klebsiella pneumoniae ( K . pneumoniae ) urinary tract infections (UTI) in children are increasing worldwide. We aimed to investigate the prevalence, clinical findings, impact and risk factors of ESBL E . coli / K . pneumoniae UTI.Methods: The medical records of children with UTI aged <15 years admitted to Prince of Songkla University Hospital were reviewed. Results: Theirty-seven boys and 46 girls had ESBL in 102 UTI episodes; 85 boys and 103 girls had non-ESBL in all of their 222 UTI episodes. The median age at presentation was 1.5 (0.7 - 4.8) years for the ESBL group and 1.3 (0.6 - 3.9) for the non-ESBL group (p=0.2). Age and gender were not significantly different between the two groups. The prevalence of ESBL rose between 2004 and 2008 before plateauing at around 30-40% per year. The prevalences in first and recurrent UTI were 27.3% and 46.5%, respectively (p=0.003). Fever prior to UTI diagnosis was found in 78.4% of episodes in the non-ESBL group and 61.8% of episodes in the ESBL group (p=0.003). Multivariate analysis, children without fever (OR=2.14, 95% CI: 1.23-3.74) and those with recurrent UTI (OR=2.67, 95% CI: 1.37 – 5.19) were more likely to have ESBL UTI. The presence of CAKUT had no effect on ESBL UTI. Conclusions: ESBL was found in one-third of E . coli / K . pneumoniae UTI episodes. No clinical condition nor imaging study could predict ESBL. Recurrent UTI was the only independent risk factor.

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