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https://www.readbyqxmd.com/read/29239220/is-it-time-to-rethink-the-notion-of-carbapenem-sparing-therapy-against-extended-spectrum-%C3%AE-lactamase-producing-enterobacteriaceae-bloodstream-infections-a-critical-review
#1
Daniel B Chastain, Bryan P White, David A Cretella, Christopher M Bland
OBJECTIVE: To present systematic recommendations for carbapenem-sparing therapy against extended-spectrum β-lactamases (ESBLs) Enterobacteriaceae bloodstream infections (BSIs) derived from a critical review of clinical data. DATA SOURCES: A systematic literature search using PubMed and MEDLINE databases (January 1, 2012, to June 30, 2017) was performed using key MESH terms: ESBL or extended-spectrum β-lactamases and bacteremia or bloodstream infection with piperacillin/tazobactam, ciprofloxacin, levofloxacin, cefepime, cephamycins, carbapenem, doripenem, meropenem, and ertapenem...
December 1, 2017: Annals of Pharmacotherapy
https://www.readbyqxmd.com/read/29230335/a-case-of-ignatzschineria-indica-bacteremia-following-maggot-colonization
#2
Hugh Muse, Rachel L Jenkins, Meredith B Oliver, Soomin Kim, Richard L Grantier, Bharat K Malhotra, Jason J Parham, Kayla R Stover
Ignatzschineria indica is a Gram-negative bacterium that is commonly associated with the larvae of flesh flies. I. indica is difficult to isolate in routine laboratory procedures but has been associated with neglected wounds infested with maggots, fever, elevated white blood count and C-reactive protein, and polymicrobial culture results. Other specific hematological/immunological changes are not known. We present a case of I. indica bacteremia and polymicrobial osteomyelitis resulting from infected decubitus ulcers...
2017: Case Reports in Infectious Diseases
https://www.readbyqxmd.com/read/29227741/new-subclass-b1-metallo-%C3%AE-lactamase-gene-from-a-clinical-pathogenic-myroides-odoratus-strain
#3
Su Xu, Yijian Chen, Zhuyingjie Fu, Ying Li, Guixiu Shi, Xiaogang Xu, Yang Liu, Minggui Wang
Myroides odoratus is a low-virulence opportunistic human pathogen. Infections caused by M. odoratus are not common, but reports are increasing in recent years. The biggest challenge for treatment is its resistance to most antibiotics. In 2015, we isolated a pathogenic multidrug-resistant strain of M. odoratus from a urinary tract infection (UTI) patient's urine sample. To report the experience in managing M. odoratus-related UTI and investigate the genetic mechanism of this carbapenem-resistant strain, we conducted a series of microbiological and molecular studies...
December 11, 2017: Microbial Drug Resistance: MDR: Mechanisms, Epidemiology, and Disease
https://www.readbyqxmd.com/read/29225828/cefepime-induced-neurotoxicity-in-a-pediatric-patient-on-chronic-hemodialysis-a-case-report
#4
Monica Guzman-Limon, Subha Amatya, Joshua Samuels, Rita Swinford, Sonal Bhatnagar, Joyce Samuel
Impaired renal function increases the risk for cefepime-induced neurotoxicity. Symptoms include disorientation, myoclonus, status epilepticus, ataxia, gait disturbance, coma, and death. A high index of suspicion and early recognition of symptoms can minimize the risk of progression of symptoms to permanent neurologic impairment or death.
December 2017: Clinical Case Reports
https://www.readbyqxmd.com/read/29214986/antibiotic-resistance-in-enterobacter-cloacae-strains-with-derepressed-partly-derepressed-inducible-ampc-and-extendedspectrum-beta-lactamases-in-zenica-doboj-canton-bosnia-and-herzegovina
#5
Selma Uzunović, Amir Ibrahimagić, Branka Bedenić
Aim To investigate the prevalence of derepressed/partly derepressed/inducible and ESBL/AmpC-producing Enterobacter cloacae isolates and treatment options for infections associated with those isolates. Methods Antibiotic susceptibility was determined by disc diffusion and broth microdilution according to CLSI guidelines. Doubledisk synergy test (DDST) was performed in order to screen for ESBLs and combined disk test with phenylboronic acid to detect AmpC β -lactamases. PCR was used to detect blaESBL/blacarb genes...
February 1, 2018: Medicinski Glasnik
https://www.readbyqxmd.com/read/29205196/speciation-clinical-profile-antibiotic-resistance-in-aeromonas-species-isolated-from-cholera-like-illnesses-in-a-tertiary-care-hospital-in-north-india
#6
Balvinder Mohan, Nandini Sethuraman, Ritu Verma, Neelam Taneja
BACKGROUND & OBJECTIVES: Aeromonas species have been reported to cause various illnesses in humans such as wound infections, septicaemia, peritonitis and pneumonia. Their role in causation of cholera-like illness is also being increasingly recognized. This retrospective study was done to know the presence of Aeromonas as a cause of acute diarrhoea in a tertiary care hospital and to find the common species of Aeromonas causing diarrhoea and their antibiotic susceptibility patterns. METHODS: Fifty isolates of Aeromonas were obtained over a period of 15 yr from 2000 to 2014 from patients of suspected acute gastroenteritis resembling cholera...
July 2017: Indian Journal of Medical Research
https://www.readbyqxmd.com/read/29205192/genetic-diversity-study-of-various-%C3%AE-lactamase-producing-multidrug-resistant-escherichia-coli-isolates-from-a-tertiary-care-hospital-using-eric-pcr
#7
Jayanti Jena, Nagen Kumar Debata, Rajesh Kumar Sahoo, Mahendra Gaur, Enketeswara Subudhi
BACKGROUND & OBJECTIVES: The prevalence of multidrug-resistant (MDR) Escherichia coli isolates producing β-lactamase enzyme is a growing problem across the globe. Strain typing is an epidemiologically important tool not only for detecting the cross transmission of nosocomial pathogens but also for determining the source of infection. The present study was conducted to understand the clonal relationship among various β-lactamase-producing MDR E. coli isolates using enterobacterial repetitive intergenic consensus (ERIC) polymerase chain reaction (PCR)...
July 2017: Indian Journal of Medical Research
https://www.readbyqxmd.com/read/29204354/unusual-carbapenem-resistant-but-ceftriaxone-and-cefepime-susceptible-klebsiella-oxytoca-isolated-from-a-blood-culture-case-report-and-whole-genome-sequencing-investigation
#8
Shangxin Yang, Peera Hemarajata, Laura Shevy, Mario Maciariello, Karissa Culbreath, Karen Bush, Romney Humphries
A carbapenem resistant but ceftriaxone and cefepime susceptible Klebsiella oxytoca was isolated from the blood of a patient with polymicrobial bacteremia after 2 weeks of ertapenem treatment. Whole-genome sequencing identified no carbapenemase gene nor plasmid, but only blaOXY-2-8 gene with a mutation in the promoter that's been reported to increase its expression. Two other specific carbapenem resistance mechanisms including mutated porin genes and the AcrAB-TolC efflux system genes were also identified. Clinicians need to be aware of such unusual antibiogram and should not assume carbapenems are always broader spectrum antibiotics than expanded-spectrum cephalosporins...
2018: IDCases
https://www.readbyqxmd.com/read/29190371/determination-of-cephalosporins-by-uhplc-dad-using-molecularly-imprinted-polymers
#9
Alen N Baeza-Fonte, Idenia Garcés-Lobo, Markel D Luaces-Alberto, Luís Moreira Gonçalves, Maria D P T Sotomayor, Arístides C Valdés-González
Molecularly imprinted polymers (MIPs) were synthesized for the determination of cephalosporins (cephazolin, ceftazidime, cefotaxime, ceftriaxone, cefepime and cephalexin) by ultra-high performance liquid chromatography with diode-array detection (UHPLC-DAD). After optimization, MIPs were synthesized using cephazolin as the template, methacrylic acid as the functional monomer, triethylenglycol dimethacrylate as the crosslinker, acetonitrile/dimethylsulfoxide as porogens and benzoyl peroxide as the radical initiator...
November 28, 2017: Journal of Chromatographic Science
https://www.readbyqxmd.com/read/29188735/clinical-efficacy-and-safety-of-cefepime-tazobactam-in-hospitalized-patients-in-south-india
#10
Nitin Bansal, Kalpesh S Sukhwani, Suresh Kumar D, P Senthur Nambi, Ram Gopalakrishnan, V Ramasubramnian
No abstract text is available yet for this article.
November 30, 2017: Infectious Diseases
https://www.readbyqxmd.com/read/29184361/phenotypic-and-genotypic-characterization-of-antimicrobial-susceptibility-of-avian-pathogenic-escherichia-coli-isolated-from-broiler-chickens
#11
Gamal Younis, Amal Awad, Nada Mohamed
Aim: Avian pathogenic Escherichia coli (APEC) is pathogenic strains of E. coli that are responsible for one of the most common bacterial diseases affecting poultry worldwide. This study was designed to determine the occurrence, antibiotic resistance profile, and antibiotic resistance genes of E. coli isolated from diseased and freshly dead broilers. Materials and Methods: In that context, a total of 200 broilers samples were examined by standard microbiological techniques for isolation of E...
October 2017: Veterinary World
https://www.readbyqxmd.com/read/29175433/detection-of-ampc-%C3%AE-lactamase-producing-gram-negative-bacteria-by-maldi-tof-ms-analysis
#12
Cong Li, Shoufu Ding, Ying Huang, Zhongxin Wang, Jilu Shen, Huazhi Ling, Yuanhong Xu
BACKGROUND: Rapid detection of AmpC-producing strains of Gram-negative bacteria is beneficial for patient care. Matrix-assisted laser desorption ionization-time of flight mass spectrometry (MALDI-TOF MS) is a novel method that has demonstrated the resistance of a strain to β-lactam antibiotics by determining the molecular structure of an antibiotic and its degradation products. AIM: To study the detection of AmpC-producing Gram-negative bacteria by MALDI-TOF MS and to determine if the method can be used in clinical practice...
November 22, 2017: Journal of Hospital Infection
https://www.readbyqxmd.com/read/29167061/implementation-and-outcomes-of-hospital-wide-computerized-antimicrobial-approval-system-and-on-the-spot-education-in-a-traumatic-intensive-care-unit-in-taiwan
#13
Tsung-Yu Huang, Chien-Hui Hung, Li-Ju Lai, Hui-Ju Chuang, Chien-Chen Wang, Pei-Tzu Lin, Wei-Hsiu Hsu
BACKGROUND/PURPOSE: Inappropriate prescribing of antibiotics is a major health-care problem in intensive care units (ICUs). This study evaluates the impact of a direct hospital-wide computerized antimicrobial approval system (HCAAS) and on-the-spot education for practitioners in a neurosurgical ICU in Taiwan. METHODS: We retrospectively analyzed the medical records monthly of patients who were admitted to the neurosurgical ICU during a period of 7 years and 7 months...
November 11, 2017: Journal of Microbiology, Immunology, and Infection, Wei Mian Yu Gan Ran za Zhi
https://www.readbyqxmd.com/read/29166830/the-role-of-cefepime-in-the-treatment-of-extended-spectrum-beta-lactamase-infections
#14
Hansita B Patel, Kathleen A Lusk, Jason M Cota
OBJECTIVE: To review the efficacy of cefepime for use in infections caused by extended-spectrum beta-lactamase (ESBL)-producing organisms. DATA SOURCES: A PubMed literature search (May 2000 to June 2017) was performed using the keyword cefepime and the MeSH terms beta-lactamases, cephalosporinases, and Enterobacteriaceae infections. STUDY SELECTION AND DATA EXTRACTION: All human, English language studies evaluating cefepime use for the treatment of ESBL-producing Escherichia coli and Klebsiella pneumoniae infections were included...
January 1, 2017: Journal of Pharmacy Practice
https://www.readbyqxmd.com/read/29164489/antimicrobial-stewardship-opportunities-in-critically-ill-patients-with-gram-negative-lower-respiratory-tract-infections-a-multicenter-cross-sectional-analysis
#15
Kimberly C Claeys, Evan J Zasowski, Trang D Trinh, Abdalhamid M Lagnf, Susan L Davis, Michael J Rybak
INTRODUCTION: Lower respiratory tract infections (LRTIs) are a major cause of morbidity and death. Because of changes in how LRTIs are defined coupled with the increasing prevalence of drug resistance, there is a gap in knowledge regarding the current burden of antimicrobial use for Centers for Disease Control and Prevention (CDC)-defined LRTIs. We describe the infection characteristics, antibiotic consumption, and clinical and economic outcomes of patients with Gram-negative (GN) LRTIs treated in intensive care units (ICUs)...
November 21, 2017: Infectious Diseases and Therapy
https://www.readbyqxmd.com/read/29162280/catheter-related-bacteraemia-caused-by-raoultella-ornithinolytica
#16
A González-Castro, J C Rodríguez-Borregán, S Campos, J L Pérez Canga
Infections in humans by Raoultella spp. are rare and the effect that Raoultella spp. might have as a human pathogen is currently unknown. A clinical case is presented of catheter-related bacteraemia caused by Raoultella ornithinolytica, treated successfully with applied antibiotic therapy (intravenous cefepime and sealed the catheter with amikacin).
November 18, 2017: Revista Española de Anestesiología y Reanimación
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
#17
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/29153975/optimisation-of-empirical-antimicrobial-therapy-in-patients-with-haematological-malignancies-and-febrile-neutropenia-how-long-study-an-open-label-randomised-controlled-phase-4-trial
#18
Manuela Aguilar-Guisado, Ildefonso Espigado, Almudena Martín-Peña, Carlota Gudiol, Cristina Royo-Cebrecos, José Falantes, Lourdes Vázquez-López, María Isabel Montero, Clara Rosso-Fernández, María de la Luz Martino, Rocío Parody, José González-Campos, Sebastián Garzón-López, Cristina Calderón-Cabrera, Pere Barba, Nancy Rodríguez, Montserrat Rovira, Enrique Montero-Mateos, Jordi Carratalá, José Antonio Pérez-Simón, José Miguel Cisneros
BACKGROUND: Continuation of empirical antimicrobial therapy (EAT) for febrile neutropenia in patients with haematological malignancies until neutrophil recovery could prolong the therapy unnecessarily. We aimed to establish whether EAT discontinuation driven by a clinical approach regardless of neutrophil recovery would optimise the duration of therapy. METHODS: We did an investigator-driven, superiority, open-label, randomised, controlled phase 4 clinical trial in six academic hospitals in Spain...
November 15, 2017: Lancet Haematology
https://www.readbyqxmd.com/read/29151996/co-occurrence-of-plasmid-mediated-ampc-%C3%AE-lactamase-activity-among-klebsiella-pneumoniae-and-escherichia-coli
#19
Abdulaziz Zorgani, Hiyam Daw, Najib Sufya, Abdullah Bashein, Omar Elahmer, Chedly Chouchani
Introduction: Extended-spectrum β-lactamases (ESBLs), including the AmpC type, are important mechanisms of resistance among Klebsiella pneumoniae and Escherichia coli isolates. Objective: The aim of the study was to investigate the occurrence of AmpC-type β-lactamase producers isolated from two hospitals in Tripoli, Libya. Methods: All clinical isolates (76 K. pneumoniae and 75 E. coli) collected over two years (2013-2014) were evaluated for susceptibility to a panel of antimicrobials and were analyzed phenotypically for the ESBL and AmpC phenotype using E-test and ESBL and AmpC screen disc test...
2017: Open Microbiology Journal
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
#20
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
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