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https://www.readbyqxmd.com/read/29163939/infection-prevention-and-control-measures-and-tools-for-the-prevention-of-entry-of-carbapenem-resistant-enterobacteriaceae-into-healthcare-settings-guidance-from-the-european-centre-for-disease-prevention-and-control
#1
A P Magiorakos, K Burns, J Rodríguez Baño, M Borg, G Daikos, U Dumpis, J C Lucet, M L Moro, E Tacconelli, G Skov Simonsen, E Szilágyi, A Voss, J T Weber
Background: Infections with carbapenem-resistant Enterobacteriaceae (CRE) are increasingly being reported from patients in healthcare settings. They are associated with high patient morbidity, attributable mortality and hospital costs. Patients who are "at-risk" may be carriers of these multidrug-resistant Enterobacteriaceae (MDR-E).The purpose of this guidance is to raise awareness and identify the "at-risk" patient when admitted to a healthcare setting and to outline effective infection prevention and control measures to halt the entry and spread of CRE...
2017: Antimicrobial Resistance and Infection Control
https://www.readbyqxmd.com/read/29163422/a-novel-inca-c1-group-conjugative-plasmid-encoding-vim-1-metallo-beta-lactamase-mediates-the-acquisition-of-carbapenem-resistance-in-st104-klebsiella-pneumoniae-isolates-from-neonates-in-the-intensive-care-unit-of-v-monaldi-hospital-in-naples
#2
Eliana P Esposito, Stefano Gaiarsa, Mariateresa Del Franco, Valeria Crivaro, Mariano Bernardo, Susanna Cuccurullo, Francesca Pennino, Maria Triassi, Piero Marone, Davide Sassera, Raffaele Zarrilli
The emergence of carbapenemase producing Enterobacteriaceae has raised major public health concern. The aim of this study was to investigate the molecular epidemiology and the mechanism of carbapenem resistance acquisition of multidrug-resistant Klebsiella pneumoniae isolates from 20 neonates in the neonatal intensive care unit (NICU) of the V. Monaldi Hospital in Naples, Italy, from April 2015 to March 2016. Genotype analysis by pulsed-field gel electrophoresis (PFGE) and multi-locus sequence typing (MLST) identified PFGE type A and subtypes A1 and A2 in 17, 2, and 1 isolates, respectively, and assigned all isolates to sequence type (ST) 104...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/29160518/evaluation-of-carbapenem-resistant-enterobacteriaceae-in-a-tertiary-level-reference-hospital-in-rio-grande-do-sul-brazil
#3
Vinícius Victor Lorenzoni, Danielly da Costa Silva, Roberta Filipini Rampelotto, Patrícia Chaves Brites, Bárbara Villa, Rosmari Hörner
INTRODUCTION: The rapid global spread of carbapenem-resistant Enterobacteriaceae (CRE) is a threat to the health system. METHODS: We evaluated the antimicrobial susceptibility profiles of 70 CRE isolated in a tertiary hospital in Brazil between August and December 2015, and determined their resistance mechanisms. RESULTS: The most prevalent microorganism was Klebsiella pneumoniae (95.7%); it showed high-level resistance to carbapenems (>98%), with sensitivity to colistin (91...
September 2017: Revista da Sociedade Brasileira de Medicina Tropical
https://www.readbyqxmd.com/read/29160428/plasmid-mediated-mcr-1-in-carbapenem-susceptible-escherichia-coli-st156-causing-a-blood-infection-an-unnoticeable-spread-of-colistin-resistance-in-brazil
#4
Flavia Rossi, Raquel Girardello, Carlos Morais, Ana Paula Cury, Layla Farage Martins, Aline Maria da Silva, Edson Abdala, João Carlos Setubal, Alberto José da Silva Duarte
OBJECTIVE: We describe an IncX4 pHC891/16mcr plasmid carrying mcr-1 in a colistin-resistant and carbapenem-susceptible E. coli isolate (HC891/16), ST156, which caused a blood infection in a Brazilian patient with gallbladder adenocarcinoma. METHODS: Strain HC891/16 was subjected to whole genome sequencing using the MiSeq Platform (Illumina, Inc., USA). Assembly was performed using Mira and ABACAS. RESULTS: The isolates showed resistance only to ciprofloxacin, ampicillin and cefoxitin, and whole-genome sequencing revealed the presence of aac(6')Ib-cr and blaTEM1...
October 2017: Clinics
https://www.readbyqxmd.com/read/29158270/in-vitro-activity-of-the-siderophore-cephalosporin-cefiderocol-against-carbapenem-non-susceptible-and-multidrug-resistant-isolates-of-gram-negative-bacilli-collected-worldwide-in-2014-2016
#5
Meredith A Hackel, Masakatsu Tsuji, Yoshinori Yamano, Roger Echols, James A Karlowsky, Daniel F Sahm
The in vitro activity of the investigational siderophore cephalosporin, cefiderocol (formerly S-649266), was determined against a 2014-2016, 52-country, worldwide collection of clinical isolates of carbapenem-non-susceptible Enterobacteriaceae (n=1,022), multidrug-resistant (MDR) Acinetobacter baumannii (n=368), MDR Pseudomonas aeruginosa (n=262), Stenotrophomonas maltophilia (n=217), and Burkholderia cepacia (n=4) using the Clinical and Laboratory Standards Institute (CLSI) standard broth microdilution method...
November 20, 2017: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/29157899/epidemiology-of-diabetic-foot-infections-in-a-reference-tertiary-hospital-in-india
#6
Sanjith Saseedharan, Manisa Sahu, Roonam Chaddha, Edwin Pathrose, Arun Bal, Pallavi Bhalekar, Priyadharshini Sekar, Padma Krishnan
INTRODUCTION: The present study attempts to examine the microbial profile and antibiotic susceptibility of diabetic foot infections in the intensive care unit of a tertiary referral centre for diabetic foot. As part of the study, we also attempted to find the prevalence of blaNDM-like gene among carbapenem-resistant gram negative infections. METHODOLOGY: A prospective study of 261 patients with diabetic foot infections was performed during the period between January 2014 and June 2014...
November 1, 2017: Brazilian Journal of Microbiology: [publication of the Brazilian Society for Microbiology]
https://www.readbyqxmd.com/read/29156685/whole-genome-and-transcriptome-analysis-reveal-maldi-tof-ms-and-sds-page-have-limited-performance-for-the-detection-of-the-key-outer-membrane-protein-in-carbapenem-resistant-klebsiella-pneumoniae-isolates
#7
Naina Adren Pinto, Roshan D'Souza, In Sik Hwang, Jongrak Choi, Yong Ha In, Hyung Soon Park, Choong-Min Ryu, Dongeun Yong, Kyungwon Lee
To detect the outer membrane protein (OMP), which plays a key role in carbapenem resistance, whole-genome and transcriptome analysis of the clinical carbapenem-resistant Klebsiella pneumoniae was carried out. The index strain lacked both OmpK35 and OmpK36, whereas the other strains lacked only OmpK35. After SDS-PAGE, the putative OMP bands were excised and identified as OmpA and OmpK36. MALDI-TOF MS showed peaks at ∼36 and ∼38 kDa that corresponded to OmpA and OmpK36, respectively. In all the strains except YMC2014/03/P345, the ∼38 kDa peaks were present...
October 17, 2017: Oncotarget
https://www.readbyqxmd.com/read/29155429/monobactam-formation-in-sulfazecin-by-a-nonribosomal-peptide-synthetase-thioesterase
#8
Ryan A Oliver, Rongfeng Li, Craig A Townsend
The N-sulfonated monocyclic β-lactam ring characteristic of the monobactams confers resistance to zinc metallo-β-lactamases and affords the most effective class to combat carbapenem-resistant enterobacteria (CRE). Here we report unprecedented nonribosomal peptide synthetase activities, wherein an assembled tripeptide is N-sulfonated in trans before direct synthesis of the β-lactam ring in a noncanonical, cysteine-containing thioesterase domain. This means of azetidinone synthesis is distinct from the three others known in nature...
November 20, 2017: Nature Chemical Biology
https://www.readbyqxmd.com/read/29154953/correlation-between-cefepime-utilization-and-pseudomonas-aeruginosa-resistance-rate-to-beta-lactams-and-carbapenems-in-patients-with-healthcare-associated-infections
#9
Zorana M Djordjevic, Marko M Folic, Slobodan M Jankovic
OBJECTIVES: There is direct link between overutilization or abuse of antibiotics and P.aeruginosa resistance rate, but other factors could influence the resistance rate, too. The study aim was to observe changes of P.aeruginosa resistance rate in patients with hospital acquired infections (HAIs) after a period of cefepime unavailability in an intensive care unit (ICU). METHODS: The study was designed as retrospective observational analysis of trends in utilization of antibiotics and density of resistance to antibiotics...
November 14, 2017: Journal of Global Antimicrobial Resistance
https://www.readbyqxmd.com/read/29154026/inhibitors-of-metallo-%C3%AE-lactamases
#10
REVIEW
Caitlyn M Rotondo, Gerard D Wright
The β-lactams are the most successful class of antibiotic drugs but they are vulnerable to inactivation by a growing cadre of β-lactamases that now number more than a thousand variants. β-Lactamases operate by one of two general chemical mechanisms either catalyzing β-lactam ring hydrolysis via a covalent enzyme intermediate through the aegis of an active site serine residue or through a noncovalent Zn-dependent mechanism. The Ser-β-lactamases are currently dominant in the clinic and consequently, there has been great effort to identify inhibitors and to co-formulate these with β-lactam antibiotics...
November 15, 2017: Current Opinion in Microbiology
https://www.readbyqxmd.com/read/29154024/global-antimicrobial-resistance-in-gram-negative-pathogens-and-clinical-need
#11
REVIEW
Ursula Theuretzbacher
Resistance in Gram-negative bacteria has become a serious problem in many regions of the world as it may reduce the treatment options substantially. Carbapenem-resistance is a good marker for such situations and is most prevalent in Acinetobacter, Pseudomonas but also increasingly in Enterobacteriaceae, especially Klebsiella. This review gives a rough global picture highlighting the epicentres of resistance. The medical need for novel treatment options globally is undeniable even if many countries with good stewardship and infection control conditions are not highly affected...
November 15, 2017: Current Opinion in Microbiology
https://www.readbyqxmd.com/read/29152950/investigation-of-class-d-beta-lactamases-causing-carbapenem-resistance-in-clinical-acinetobacter-baumannii-isolates
#12
Iskandar Davandeh, Bayrı Eraç, Sabire Şöhret Aydemir
Background/aim: Acinetobacter baumannii is an important causative agent of nosocomial infections, and carbapenems have been frequently used in the treatment of these infections. This study was designed to investigate the prevalence of primary carbapenem hydrolyzing oxacillinase (CHO) types in clinical A. bumannii strains. Materials and methods: Minimum inhibitory concentration (MIC) values of 76 imipenem nonsusceptible A. baumannii strains, isolated from a tertiary care hospital, were determined by microdilution method...
November 13, 2017: Turkish Journal of Medical Sciences
https://www.readbyqxmd.com/read/29152678/first-year-results-of-an-antibiotic-stewardship-program-in-a-greek-tertiary-care-hospital
#13
K Chrysou, O Zarkotou, S Kalofolia, P Papagiannakopoulou, G Chrysos, K Themeli-Digalaki, A Tsakris, S Pournaras
The aim of this study was to investigate the effect of the implementation of an antibiotic stewardship program (ASP) on antibiotic consumption in our 428-bed hospital. The Infection Control Committee implemented an ASP beginning in January 2016, aiming to reduce inappropriate antibiotic use through improved prescribing practices. The ASP included both pre-authorization and prospective audit and feedback strategies. We collected pharmacy and hospital data for the years 2015 (pre-intervention) and 2016 (post-intervention)...
November 19, 2017: European Journal of Clinical Microbiology & Infectious Diseases
https://www.readbyqxmd.com/read/29151254/evaluation-of-the-implementation-of-hospital-antibiotic-policy-in-oncosurgery-ward-a-six-year-experience
#14
Aneta Nitsch-Osuch, Damian Okruciński, Magdalena Dawgiałło, Izabela Gołębiak, Ernest Kuchar
The hospital antibiotic policy should be implemented to rationalize the antibiotic use and to decrease the risk of spread of resistant bacteria. The aim of this study was to describe the antibiotic consumption patterns in a single oncosurgery ward before and after the implementation of hospital antibiotic policy. We conducted a retrospective analysis of the antibiotic use at the oncosurgery ward in Warsaw, Poland, in the years 2011-2016. Calculations were based on daily defined doses (DDD), DDD/100 hospitalizations, and DDD/100 person-days...
November 19, 2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/29150374/occurrence-of-enterobacter-hormaechei-carrying-blandm-1-and-blakpc-2-in-china
#15
Biwei Yang, Yu Feng, Alan McNally, Zhiyong Zong
Three carbapenem-resistant clinical isolates of the Enterobacter cloacae complex (ECC) were recovered from different patients in a hospital. All 3 isolates carried 2 carbapenemase genes blaKPC-2 and blaNDM-1. A study was performed to characterize their relatedness and to investigate possible links among the patients. Whole genome sequencing revealed that the isolates were Enterobacter hormaechei and belonged to ST177 of the ECC. There were 19-142 single nucleotide polymorphisms (SNPs) between the isolates, suggesting that the isolates were likely from a central reservoir, which might have existed for some time...
October 19, 2017: Diagnostic Microbiology and Infectious Disease
https://www.readbyqxmd.com/read/29150373/chromagar-msupercarba-and-rapidec%C3%A2-carba-np-test-for-detection-of-carbapenemase-producing-enterobacteriaceae
#16
Meritxell Garcia-Quintanilla, Laurent Poirel, Patrice Nordmann
A novel chromogenic medium CHROMagar mSuperCARBA was evaluated to detect carbapenem-resistant Gram-negatives. This medium is as sensitive and as specific as the SUPERCARBA medium for detecting KPC, MBL and OXA-48-type producers (100% and 100%, respectively) and is compatible with subsequent testing of carbapenemase activity using the RAPIDEC(®) CARBA NP.
October 19, 2017: Diagnostic Microbiology and Infectious Disease
https://www.readbyqxmd.com/read/29149337/mechanisms-leading-to-in-vivo-ceftolozane-tazobactam-resistance-development-during-the-treatment-of-infections-caused-by-mdr-pseudomonas-aeruginosa
#17
Pablo A Fraile-Ribot, Gabriel Cabot, Xavier Mulet, Leonor Periañez, M Luisa Martín-Pena, Carlos Juan, José L Pérez, Antonio Oliver
Objectives: Characterization of the mechanisms driving ceftolozane/tazobactam resistance development in 5 of 47 (10.6%) patients treated for MDR Pseudomonas aeruginosa infections in a Spanish hospital. Methods: Five pairs of ceftolozane/tazobactam-susceptible/resistant P. aeruginosa isolates were studied. MICs were determined by broth microdilution, clonal relatedness was assessed by MLST and resistance mechanisms were investigated by phenotypic and genotypic methods, including WGS...
November 14, 2017: Journal of Antimicrobial Chemotherapy
https://www.readbyqxmd.com/read/29149302/activity-of-colistin-alone-or-in-combination-with-rifampicin-or-meropenem-in-a-carbapenem-resistant-bioluminescent-pseudomonas-aeruginosa-intraperitoneal-murine-infection-model
#18
Yun Cai, Deqing Yang, Jin Wang, Rui Wang
Background: Carbapenem-resistant Pseudomonas aeruginosa (CRPA) infections represent a major therapeutic problem and combination therapy may be the chemotherapeutic option. Methods: Bioluminescent CRPA was developed through sequential subcultures in subinhibitory concentrations of meropenem from an engineered strain of bioluminescent PA Xen5. Then CRPA was injected intraperitoneally to establish an intraperitoneal murine infection model. Treatments of colistin alone or combined with rifampicin or meropenem were started 1 h after infection...
November 14, 2017: Journal of Antimicrobial Chemotherapy
https://www.readbyqxmd.com/read/29145853/molecular-characterization-of-%C3%AE-lactamase-genes-in-clinical-isolates-of-carbapenem-resistant-acinetobacter-baumannii
#19
Kevin M Raible, Bhaswati Sen, Nancy Law, Tiffany E Bias, Christopher L Emery, Garth D Ehrlich, Suresh G Joshi
BACKGROUND: Acinetobacter baumannii is a nosocomial pathogen which is establishing as a major cause of morbidity and mortality within the healthcare community. The success of this pathogen is largely due to its ability to rapidly gain resistance to antimicrobial therapies and its capability to persist in an abiotic environment through the production of a biofilm. Our tertiary-care hospital has showed high incidence of carbapenem-resistant Acinetobacter baumannii (CRAB) isolates. METHODS: In this study we explore both genotypic and phenotypic properties of 26 CRAB isolates: 16 isolates were collected from January 2010 to March 2011, and 10 were collected between February and May 2015...
November 16, 2017: Annals of Clinical Microbiology and Antimicrobials
https://www.readbyqxmd.com/read/29144958/isolation-of-blandm-producing-enterobacteriaceae-in-a-public-hospital-in-salvador-bahia-brazil
#20
Maria Goreth Barberino, Silvia de Araujo Cruvinel, Célio Faria, Marco Aurélio Salvino, Márcio Oliveira
Carbapenemases have great importance in the global epidemiological scenario since infections with carbapenemase-producing bacteria are associated with high mortality, especially in hospitalized patients in intensive care units. This study describes two microorganisms producers of the New Delhi Metallo-b-lactamase (NDM), Klebsiella pneumoniae and Citrobacter freundii, from two patients admitted to a public hospital in Salvador, Bahia. These are the first clinical cases of NDM described in microorganisms in the north and northeast Brazil...
November 13, 2017: Brazilian Journal of Infectious Diseases
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