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carbapenemases in children's

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https://www.readbyqxmd.com/read/29689301/distinct-consequences-of-amoxicillin-and-ertapenem-exposure-in-the-porcine-gut-microbiome
#1
Sheila Connelly, Poorani Subramanian, Nur A Hasan, Rita R Colwell, Michael Kaleko
The gut microbiome influences many, if not all, aspects of human health. Antibiotics, while lifesaving, have the unintended consequence of killing commensal microbiota inhabiting the gastrointestinal (GI) tract, which can lead to overgrowth of opportunistic pathogens such as Clostridium difficile and emergence of antibiotic-resistant organisms. Here, porcine models were developed to evaluate changes to the gut microbiome caused by two distinct types of beta-lactam antibiotics delivered via common administration routes, oral amoxicillin and intravenous ertapenem...
April 21, 2018: Anaerobe
https://www.readbyqxmd.com/read/29558475/molecular-epidemiology-and-drug-resistant-mechanism-in-carbapenem-resistant-klebsiella-pneumoniae-isolated-from-pediatric-patients-in-shanghai-china
#2
Xingyu Zhang, Di Chen, Guifeng Xu, Weichun Huang, Xing Wang
Infection by carbapenem-resistant Klebsiella pneumoniae (CR-KP) is a public health challenge worldwide, in particular among children, which was associated with high morbidity and mortality rates. There was limited data in pediatric populations, thus this study aimed to investigate molecular epidemiology and drug resistant mechanism of CR-KP strains from pediatric patients in Shanghai, China. A total of 41 clinical CR-KP isolates from sputum, urine, blood or drainage fluid were collected between July 2014 and May 2015 in Shanghai Children's Medical Center...
2018: PloS One
https://www.readbyqxmd.com/read/29439957/high-rate-of-association-of-16s-rrna-methylases-and-carbapenemases-in-enterobacteriaceae-recovered-from-hospitalized-children-in-angola
#3
Laurent Poirel, Juliette Goutines, Marta Aires-de-Sousa, Patrice Nordmann
Acquired 16S rRNA methylases (RMTases) conferring pan-drug resistance to aminoglycosides were searched among enterobacterial isolates recovered in Angola. A total of 36 hospitalized children were screened for rectal colonization using the Superaminoglycoside selective medium. Twenty-two pan-aminoglycoside-resistant enterobacterial isolates were recovered, all of which produced RMTases, i.e., RmtB, ArmA, and RmtC. Highly diverse genetic backgrounds were identified for Escherichia coli and Klebsiella pneumoniae isolates, most of which coproduced carbapenemases NDM-1 or NDM-5, respectively...
April 2018: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/29390982/characteristics-of-diarrheagenic-escherichia-coli-among-children-under-5-years-of-age-with-acute-diarrhea-a-hospital-based-study
#4
Yu Zhou, Xuhui Zhu, Hongyan Hou, Yanfang Lu, Jing Yu, Lie Mao, Liyan Mao, Ziyong Sun
BACKGROUND: Diarrhea is the leading infectious cause of childhood morbidity and mortality. Among bacterial agents, diarrheagenic Escherichia coli (DEC) is the major causal agent of childhood diarrhea in developing countries, particularly in children under the age of 5 years. Here, we performed a hospital-based prospective study to explore the pathotype distribution, epidemiological characteristics and antibiotic resistance patterns of DEC from < 5-year-old diarrheal children. METHODS: Between August 2015 and September 2016, 684 stool samples were collected from children (< 5 years old) with acute diarrhea...
February 1, 2018: BMC Infectious Diseases
https://www.readbyqxmd.com/read/29319505/kpc-2-producing-klebsiella-pneumoniae-st11-in-a-children-s-hospital-in-poland
#5
Monika Machulska, Anna Baraniak, Iwona Żak, Katarzyna Bojarska, Dorota Żabicka, Iwona Sowa-Sierant, Waleria Hryniewicz, Marek Gniadkowski
Four Klebsiella pneumoniae isolates from children hospitalized over 10 months in an intensive care unit in a children's teaching hospital in Poland were analyzed. All of the isolates belonged to a single pulsotype and sequence type (ST) 11, and produced the KPC-2 carbapenemase and extended-spectrum β-lactamase (ESBL) CTX-M-15. They were resistant to a variety of antimicrobials, and their β-lactam resistance patterns were typical for KPC producers. This is one of few cases of identification of KPC (or carbapenemase)-producing K...
September 27, 2017: Polish Journal of Microbiology
https://www.readbyqxmd.com/read/29277142/carriage-of-multidrug-resistant-bacteria-among-pediatric-patients-before-and-during-their-hospitalization-in-a-tertiary-pediatric-unit-in-tunisia
#6
Miniar Tfifha, Asma Ferjani, Manel Mallouli, Nesrine Mlika, Saoussen Abroug, Jalel Boukadida
The pandemic spread of multidrug-resistant (MDR) bacteria (i.e., methicillin-resistant Staphylococcus aureus (MRSA), extended-spectrum b-lactamase-producing Enterobacteriaceae (ESBLPE), vancomycin-resistant enterococci, carbapenemase-producing Enterobacteriaceae (CPE), multiresistant Pseudomonas aeruginosa and multiresistant Acinetobacter baumannii) pose a threat to healthcare Worldwide. We found limited data of MDR bacteria in pediatric patients hospitalized in Tunisian tertiary healthcare.The aim of the study is to evaluate the acquisition rate of MDR acquisition during hospitalization and to explore some of the associated risk factors for both carriage and acquisition at the pediatric department, Sahloul University Hospital...
December 2018: Libyan Journal of Medicine
https://www.readbyqxmd.com/read/29162494/prevalence-of-multidrug-resistant-organisms-in-migrant-children-admitted-to-an-italian-cardiac-surgery-department-2015-2016
#7
E Costa, M Tejada, P Gaia, M Cornetta, A Moroni, E Carfora, R Valaperta, C De Siena, N Moussaidi, G Isgrò, A Frigiola
Screening on hospital admission to identify multidrug-resistant organism (MDRO) colonization is a frequently discussed topic. We report the results of microbiological screening in 141 Italian and 354 migrant children candidates for cardiac surgery conducted in 2015-2016. In all, 25% of Italian children and more than 65.4% of African and Romanian children carried at least one MDRO (meticillin-resistant Staphylococcus aureus; extended-spectrum β-lactamase enzymes; carbapenemase producers; and vancomycin-resistant enterococci)...
March 2018: Journal of Hospital Infection
https://www.readbyqxmd.com/read/28984751/bla-oxa48-gene-microorganisms-outbreak-in-a-tertiary-children-s-hospital-over-3-years-2012-2014-case-report
#8
Rafael Herruzo, Guillermo Ruiz, Veronica Perez-Blanco, Sara Gallego, Eduardo Mora, Maria Jose Vizcaino, Felix Omeñaca
RATIONALE: Carbapenem-resistant Enterobacteriaceae are an emerging problem in children. Nosocomial spread remains the principal risk factor for acquisition of these microorganisms. PATIENTS CONCERNS: We describe an outbreak of Klebsiella pneumoniae OXA48 (KOXA48) in a tertiary children's hospital during the years 2012 to 2014, as well as the preventive measures put in place in colonized and infected cases. DIAGNOSES: We studied, "in vitro," the KOXA48 susceptibility to antiseptics and surface disinfectants...
October 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28807096/a-five-year-surveillance-of-carbapenemase-producing-klebsiella-pneumoniae-in-a-pediatric-hospital-in-china-reveals-increased-predominance-of-ndm-1
#9
Fang Dong, Jie Lu, Yan Wang, Jin Shi, Jing Hui Zhen, Ping Chu, Yang Zhen, Shu Jing Han, Yong Li Guo, Wen Qi Song
OBJECTIVE: To characterize carbapenem (CPM)-non-susceptible Klebsiella pneumoniae (K. pneumoniae) and carbape-nemase produced by these strains isolated from Beijing Children's Hospital based on a five-year surveillance. METHODS: The Minimal Inhibition Concentration values for 15 antibiotics were assessed using the Phonix100 compact system. PCR amplification and DNA sequencing were used to detect genes encoding carbapenemases. WHONET 5.6 was finally used for resistance analysis...
August 2017: Biomedical and Environmental Sciences: BES
https://www.readbyqxmd.com/read/28182124/extended-spectrum-beta-lactamase-and-carbapenemase-producing-enterobacteriaceae-among-ethiopian-children
#10
Melese Hailu Legese, Gebru Mulugeta Weldearegay, Daniel Asrat
BACKGROUND: Infections by extended-spectrum beta-lactamase- (ESBL) and carbapenem-resistant Enterobacteriaceae (CRE) are an emerging problem in children nowadays. Hence, the aim of this study was to determine the prevalence of ESBL- and carbapenemase-producing Enterobacteriaceae among children suspected of septicemia and urinary tract infections (UTIs). METHODS: A cross-sectional study was conducted from January to March 2014. A total of 322 study participants suspected of septicemia and UTIs were recruited...
2017: Infection and Drug Resistance
https://www.readbyqxmd.com/read/28005691/clinical-and-bacterial-risk-factors-for-mortality-in-children-with-carbapenem-resistant-enterobacteriaceae-bloodstream-infections-in-india
#11
Laura E B Nabarro, Chaitra Shankar, Agila K Pragasam, Georgekutty Mathew, Visali Jeyaseelan, Balaji Veeraraghavan, Valsan P Verghese
BACKGROUND: Carbapenem-resistant Enterobacteriaceae (CRE) are an increasing cause of nosocomial infection in hospitalized children worldwide. Few studies have investigated risk factors for mortality in children with CRE bloodstream infection (BSI). Data are particularly scarce in areas where NDM and OXA carbapenemases predominate. Here, we investigate mortality rates, clinical and microbiologic risk factors for mortality in 50 pediatric patients with CRE BSI in India. METHODS: Children younger than 17 years old with meropenem-resistant Klebsiella pneumoniae or Escherichia coli isolated from blood culture in 2014 and 2015 were identified from laboratory records...
June 2017: Pediatric Infectious Disease Journal
https://www.readbyqxmd.com/read/27585707/molecular-epidemiology-of-carbapenem-resistant-gram-negative-bacilli-from-infected-pediatric-population-in-tertiary-care-hospitals-in-medell%C3%A3-n-colombia-an-increasing-problem
#12
Johanna M Vanegas, O Lorena Parra, J Natalia Jiménez
BACKGROUND: Gram-negative bacilli are a cause of serious infections in the pediatric population. Carbapenem are the treatment of choice for infections caused by multidrug-resistant Gram-negative bacilli, but the emergence of carbapenem resistance has substantially reduced access to effective antimicrobial regimens. Children are a population vulnerable to bacterial infections and the emergence of resistance can worsen prognosis. The aim of this study is to describe the clinical and molecular characteristics of infections caused by carbapenem-resistant Gram-negative bacilli in pediatric patients from five tertiary-care hospitals in Medellín, Colombia...
September 1, 2016: BMC Infectious Diseases
https://www.readbyqxmd.com/read/27574974/high-gastrointestinal-colonization-rate-with-extended-spectrum-%C3%AE-lactamase-producing-enterobacteriaceae-in-hospitalized-patients-emergence-of-carbapenemase-producing-k-pneumoniae-in-ethiopia
#13
Kassu Desta, Yimtubezinash Woldeamanuel, Aklilu Azazh, Halima Mohammod, Dawit Desalegn, Damte Shimelis, Dereje Gulilat, Biruk Lamisso, Eyasu Makonnen, Alemayehu Worku, Kerstin Mannerqvist, Johan Struwe, Olov Aspevall, Eleni Aklillu
We investigated the gastrointestinal colonization rate and antibiotic resistance patterns of Extended-Spectrum Beta-Lactamase (ESBL)- producing Escherichia coli and Klebsiella pneumoniae in hospitalized patients admitted at Ethiopia's largest tertiary hospital. Fecal samples/swabs from 267 patients were cultured on chrome agar. ESBL. Bacterial species identification, verification of ESBL production and antibiotic susceptibility testing were done using Vitek 2 system (bioMérieux, France). Phenotype characterization of ESBL-E...
2016: PloS One
https://www.readbyqxmd.com/read/27503638/high-prevalence-of-carbapenemase-producing-enterobacteriaceae-among-hospitalized-children-in-luanda-angola
#14
Nicolas Kieffer, Patrice Nordmann, Marta Aires-de-Sousa, Laurent Poirel
This study aimed to evaluate the prevalence of carbapenemase-producing Enterobacteriaceae in Luanda, Angola. A total of 157 rectal samples were collected from children visiting a pediatric hospital in Luanda in March 2015. Fifty-seven imipenem-nonsusceptible enterobacterial isolates were recovered, most of which were non-clonally related. The blaOXA-181 (50/57) and blaNDM-1 (7/57) carbapenemase genes were identified. Notably, OXA-181-producing Escherichia coli isolates rarely coproduced extended-spectrum β-lactamases and consequently remained susceptible to broad-spectrum cephalosporins...
October 2016: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/27279859/colonization-of-multidrug-resistant-pathogens-in-a-hybrid-pediatric-cardiac-surgery-center
#15
Radoslaw Jaworski, Ireneusz Haponiuk, Mariusz Steffens, Elzbieta Arlukowicz, Ninela Irga-Jaworska, Maciej Chojnicki, Ewelina Kwasniak, Jacek Zielinski
INTRODUCTION: The incidence of multidrug resistant microorganisms worldwide is increasing. The aim of the study was to present institutional experience with the multidrug resistant microorganism colonization patterns observed in children with congenital heart diseases hospitalized in a hybrid pediatric cardiac surgery center. MATERIAL AND METHODS: Microbiological samples were routinely collected in all children admitted to our department. All microbiological samples were analyzed with regard to multidrug resistant microorganisms: methicillin-resistant Staphylococcus aureus (MRSA), vancomycin-resistant enterococci (VRE), Gram-negative rods producing extended-spectrum beta-lactamases (ESBL), multidrug resistant Gram-negative rods (MDR-GNRs), carbapenemase-producing Klebsiella pneumoniae (KPC), carbapenem-resistant Acinetobacter baumannii (CRAB) and Pseudomonas aeruginosa (CRPA)...
June 1, 2016: Archives of Medical Science: AMS
https://www.readbyqxmd.com/read/27199618/beyond-susceptible-and-resistant-part-iii-treatment-of-infections-due-to-gram-negative-organisms-producing-carbapenemases
#16
REVIEW
Navaneeth Narayanan, Linda Johnson, Conan MacDougall
Carbapenemases are enzymes that are capable of inactivating all or almost all beta-lactam antimicrobial agents. These enzymes are frequently coexpressed with other resistance mechanisms to non-beta-lactams, leading to extremely drug-resistant pathogens. Once a curiosity, these enzymes have spread into organisms that are among the most common causes of infection, such as Klebsiella pneumoniae and Escherichia coli. Identification of these organisms has proved challenging for clinical microbiology laboratories, leading to revisions in susceptibility standards for carbapenems...
March 2016: Journal of Pediatric Pharmacology and Therapeutics: JPPT: the Official Journal of PPAG
https://www.readbyqxmd.com/read/27180312/beta-lactamases-in-enterobacteriaceae-infections-in-children
#17
REVIEW
Christopher Alan Moxon, Stéphane Paulus
Multi-drug resistance in Gram negative bacteria, particularly in Enterobacteriaceae, is a major clinical and public health challenge. The main mechanism of resistance in Enterobacteriaceae is linked to the production of beta-lactamase hydrolysing enzymes such as extended spectrum beta-lactamases (ESBL), AmpC beta-lactamases and carbapenemases (Carbapenemase Producing Enterobacteriaceae (CPE)). ESBL and CPE resistance genes are located on plasmids, which can be transmitted between Enterobacteriaceae, facilitating their spread in hospitals and communities...
July 5, 2016: Journal of Infection
https://www.readbyqxmd.com/read/27123345/phenotypic-detection-of-metallo-beta-lactamases-in-carbapenem-resistant-acinetobacter-baumannii-isolated-from-pediatric-patients-in-pakistan
#18
Muneeza Anwar, Hassan Ejaz, Aizza Zafar, Hamdan Hamid
Multidrug resistant A. baumannii has emerged as an important and problematic human pathogen as it is the causative agent of several types of infections especially in neonates and immunocompromised patients because they have least capacity to fight against infections. Carbapenems are used as last resort antibiotics for treating these infections but currently resistance against carbapenems due to MBL production is on the rise. The objective of this study was to determine the frequency of antibiotic resistance in A...
2016: Journal of Pathogens
https://www.readbyqxmd.com/read/27100130/carbapenem-resistant-enterobacteriaceae-infections-in-children-an-italian-retrospective-multicenter-study
#19
MULTICENTER STUDY
Carlotta Montagnani, Manuela Prato, Carlo Scolfaro, Sara Colombo, Susanna Esposito, Claudia Tagliabue, Andrea Lo Vecchio, Eugenia Bruzzese, Anna Loy, Laura Cursi, Marco Vuerich, Maurizio de Martino, Luisa Galli
BACKGROUND: The spread of carbapenem-resistant Enterobacteriaceae (CRE) is a health problem of major concern. CRE-related infections have significant morbidity and mortality, but data on CRE infection in pediatric population are limited. The aim of this study was to analyze epidemiologic and clinical characteristics, risk factors, therapeutic options and outcome of CRE infections in children in Italy. METHODS: We performed a retrospective, multicenter, observational study of children with confirmed CRE infection or colonization admitted between January 1, 2011, and March 1, 2014, to 7 Italian pediatric centers...
August 2016: Pediatric Infectious Disease Journal
https://www.readbyqxmd.com/read/27021322/analysis-of-%C3%AE-lactamase-resistance-determinants-in-enterobacteriaceae-from-chicago-children-a-multicenter-survey
#20
MULTICENTER STUDY
Latania K Logan, Andrea M Hujer, Steven H Marshall, T Nicholas Domitrovic, Susan D Rudin, Xiaotian Zheng, Nadia K Qureshi, Mary K Hayden, Felicia A Scaggs, Anand Karadkhele, Robert A Bonomo
Multidrug-resistant (MDR) Enterobacteriaceae infections are increasing in U.S. children; however, there is a paucity of multicentered analyses of antibiotic resistance genes responsible for MDR phenotypes among pediatric Enterobacteriaceae isolates. In this study, 225 isolates phenotypically identified as extended-spectrum β-lactamase (ESBL) or carbapenemase producers, recovered from children ages 0 to 18 years hospitalized between January 2011 and April 2015 at three Chicago area hospitals, were analyzed...
June 2016: Antimicrobial Agents and Chemotherapy
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