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vancomycin resistance

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https://www.readbyqxmd.com/read/28212469/-evidence-and-recommendation-of-empirical-antimicrobial-treatment-in-pyogenic-spondylodiscitis-systematic-review
#1
David Agustín Cordero-Delgado, Alfredo Javier Moheno-Gallardo, Rubén Torres-González, Argenis Mata-Hernández, Eulalio Elizalde-Martínez, José Manuel Pérez-Atanasio
BACKGROUND: Pyogenic spondylodiscitis is the infectious process that affects the vertebral body and the intervertebral disc. It has an incidence between 2 and 7%. To prescribe antibiotic treatment, it is required to identify the causative organism on the basis of the epidemiology of the etiologic agent, as well as the ability of the antibiotic to penetrate the bone tissue and the intervertebral disc. The objective was to identify the level of evidence and the grade of recommendation for the empiric initial treatment...
2017: Revista Médica del Instituto Mexicano del Seguro Social
https://www.readbyqxmd.com/read/28209400/multidrug-resistant-enterococcal-infections-new-compounds-novel-antimicrobial-therapies
#2
REVIEW
Roel M van Harten, Rob J L Willems, Nathaniel I Martin, Antoni P A Hendrickx
Over the past two decades infections due to antibiotic-resistant bacteria have escalated world-wide, affecting patient morbidity, mortality, and health care costs. Among these bacteria, Enterococcus faecium and Enterococcus faecalis represent opportunistic nosocomial pathogens that cause difficult-to-treat infections because of intrinsic and acquired resistance to a plethora of antibiotics. In recent years, a number of novel antimicrobial compound classes have been discovered and developed that target Gram-positive bacteria, including E...
February 13, 2017: Trends in Microbiology
https://www.readbyqxmd.com/read/28208915/an-unusual-occurrence-of-methicillin-resistant-staphylococcal-endocarditis-with-vancomycin-creep-phenomenon-a-therapeutic-challenge
#3
S Sneha, Shanthan Venishetty, Shubha Seshadri, M Sudhakar Rao, Chiranjay Mukhopadhyay
Infective endocarditis by Methicillin Resistant Staphylococcus aureus (MRSA) bacteraemia is a common association and carries a high mortality. However, rising Minimum Inhibitory Concentrations (MICs) for vancomycin amongst MRSA strains is an emerging threat which carries poor prognosis and higher mortality. Here, we report a case of 41-year-old young non-addict gentleman presenting with fever of 3 days duration following recovery from an acute kidney injury necessitating haemodialysis. Systemic examination revealed signs of mitral regurgitation and left sided cerebellar signs...
December 2016: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28207828/the-wide-spectrum-high-biocidal-potency-of-bioxy-formulation-when-dissolved-in-water-at-different-concentrations
#4
Dori Dagher, Ken Ungar, Richard Robison, Fadi Dagher
Traditional surface disinfectants that have long been applied in medicine, animal husbandry, manufacturing and institutions are inconvenient at best and dangerous at worst. Moreover, some of these substances have adverse environmental impacts: for example, quaternary ammonium compounds ("quats") are reproductive toxicants in both fish and mammals. Halogens are corrosive both to metals and living tissues, are highly reactive, can be readily neutralized by metals, and react with organic matter to form toxic, persistent by-products such as dioxins and furans...
2017: PloS One
https://www.readbyqxmd.com/read/28207293/prevalence-of-multidrug-resistant-bacteria-from-u-s-grown-and-imported-fresh-produce-retailed-in-chain-supermarkets-and-ethnic-stores-of-davidson-county-tennessee
#5
Siqin Liu, Agnes Kilonzo-Nthenge
The aim of this study was to determine whether U.S.-grown and imported fresh produce retailed in ethnic stores and chain supermarkets was a reservoir of antibiotic-resistant bacteria. A total of 360 (129 imported and 231 U.S.-grown) samples of fresh produce were purchased from retail stores and analyzed for Enterobacteriaceae , including three pathogenic bacteria ( Escherichia coli O157:H7, Shigella , and Salmonella ), using standard methods. Presumptive pathogenic isolates were confirmed using PCR. The mean Enterobacteriaceae counts for imported produce were 6...
February 16, 2017: Journal of Food Protection
https://www.readbyqxmd.com/read/28207269/a-biocompatible-injectable-hydrogel-with-potent-wound-healing-and-antibacterial-properties
#6
Jiaul Hoque, Relekar G Prakash, Krishnamoorthy Paramanandham, Bibek R Shome, Jayanta Haldar
Two component injectable hydrogels that cross-link in-situ have been used as non-invasive wound-filling devices, i.e., sealants. These materials carry a variety of functions at the wound sites such as seal leaks, cease unwanted bleeding, bind tissues together, and assist in wound healing process. However, commonly used sealants typically lack antibacterial properties. Since bacterial infection at the wound site is very common, bioadhesive materials with intrinsic antibacterial properties are urgently required...
February 16, 2017: Molecular Pharmaceutics
https://www.readbyqxmd.com/read/28203378/screening-for-vancomycin-resistant-enterococci-with-xpert%C3%A2-vana-vanb-diagnostic-accuracy-and-impact-on-infection-control-decision-making
#7
B J Holzknecht, D S Hansen, L Nielsen, A Kailow, J O Jarløv
Vancomycin-resistant enterococci (VRE) are increasingly important nosocomial pathogens and screening for colonization status is a mainstay in infection control. We implemented PCR-based screening during vanA-positive Enterococcus faecium outbreaks in four university hospitals in Copenhagen, Denmark. Xpert(®)vanA/vanB was performed directly on rectal swabs and the vanA PCR result was used to guide infection control measures. Concurrently, all samples were selectively cultured including an overnight enrichment step...
March 2017: New Microbes and New Infections
https://www.readbyqxmd.com/read/28203096/burden-of-methicillin-resistant-staphylococcus-aureus-pneumonia-among-hospitalized-patients-in-lebanon-and-saudi-arabia
#8
Abdulhakeem O Althaqafi, Madonna J Matar, Rima Moghnieh, Adel F Alothman, Thamer H Alenazi, Fayssal Farahat, Shelby Corman, Caitlyn T Solem, Nirvana Raghubir, Cynthia Macahilig, Seema Haider, Jennifer M Stephens
OBJECTIVES: The objective of this study is to describe the real-world treatment patterns and burden of suspected or confirmed methicillin-resistant Staphylococcus aureus (MRSA) pneumonia in Saudi Arabia and Lebanon. METHODS: A retrospective chart review study evaluated 2011-2012 data from hospitals in Saudi Arabia and Lebanon. Patients were included if they had been discharged with a diagnosis of MRSA pneumonia, which was culture proven or suspected based on clinical criteria...
2017: Infection and Drug Resistance
https://www.readbyqxmd.com/read/28202770/daptomycin-for-complicated-skin-infections-a-randomized-trial
#9
John Bradley, Chad Glasser, Hernando Patino, Sandra R Arnold, Antonio Arrieta, Blaise Congeni, Robert S Daum, Tsoline Kojaoghlanian, Minjung Yoon, Diane Anastasiou, Dominik J Wolf, Paula Bokesch
BACKGROUND: Complicated skin and skin structure infections (cSSSI) are common in children. Due to safety and resistance issues with recommended agents, new treatment options would be advantageous. METHODS: Multicenter, evaluator-blinded clinical trial. Patients 1 to 17 years old with cSSSI caused by Gram-positive pathogens were randomized 2:1 to intravenous daptomycin or standard-of-care (SOC) treatment for ≤14 days. Daptomycin was administered once daily with dosing by patient age: 12 to 17 years, 5 mg/kg; 7 to 11 years, 7 mg/kg; 2 to 6 years, 9 mg/kg; 12 to 23 months, 10 mg/kg...
February 15, 2017: Pediatrics
https://www.readbyqxmd.com/read/28202116/-pathogens-of-infections-in-the-induction-period-of-childhood-acute-lymphoblastic-leukemia-and-drug-resistance-of-isolated-strains
#10
Zai-Sheng Chen, Ling Zheng, Yi-Qiao Chen, Jing-Hui Yang, Jian Li
OBJECTIVE: To investigate the infections occurring in the induction period of childhood acute lymphoblastic leukemia (ALL), the pathogens of the infections, and drug resistance of isolated strains. METHODS: A retrospective analysis was performed for the clinical data of 130 children with newly-diagnosed childhood ALL. Infections occurring during the induction chemotherapy, pathogenic strains, and drug-resistance spectrum were analyzed. RESULTS: The incidence rate of clinical infection and/or microbial infection reached 76...
February 2017: Zhongguo Dang Dai Er Ke za Zhi, Chinese Journal of Contemporary Pediatrics
https://www.readbyqxmd.com/read/28198662/changes-in-bacterial-epidemiology-and-antibiotic-resistance-among-veterans-with-spinal-cord-injury-disorder-over-the-past-9-years
#11
Margaret A Fitzpatrick, Katie J Suda, Nasia Safdar, Stephen P Burns, Makoto M Jones, Linda Poggensee, Swetha Ramanathan, Charlesnika T Evans
OBJECTIVE: Patients with spinal cord injury and disorder (SCI/D) have an increased risk of infection with multidrug-resistant (MDR) bacteria. We described bacterial epidemiology and resistance in patients with SCI/D at Veterans Affairs Medical Centers (VAMCs) for the past 9 years. DESIGN: Retrospective cohort Setting: One hundred thirty VAMCs. PARTICIPANTS: Veterans with SCI/D and bacterial cultures with antibiotic susceptibility testing performed between 1/1/2005-12/31/2013...
February 15, 2017: Journal of Spinal Cord Medicine
https://www.readbyqxmd.com/read/28197394/antibiogram-of-bacteria-isolated-from-automated-teller-machines-in-hamadan-west-iran
#12
Hassan Mahmoudi, Mohammad Reza Arabestani, Mohammad Yousef Alikhani, Iraj Sedighi, Hamed Farhadi Kohan, Mohammad Molavi
Aim: Bacteria are ubiquitous in the environment. In keeping with the continued expansion of urbanization and the growing population, an increasing number of people use automated banking, i.e. automated teller machines (ATMs). The aim of this study was to investigate the bacterial contamination and its antibiotic sensitivity on computer keyboards located at ATMs in Hamadan province, Iran. Method: Out of 360 ATMs at four locations in Hamadan, 96 were randomly selected for this study. The antibiotic susceptibility pattern of all isolates was determined by the agar disk diffusion method using gentamicin (10 µg), vancomycin (30 µg), trimethoprim/sulfamethoxazole (25 µg), amikacin (30 µg), tobramycin (10 µg), cephalotin (30 µg), norfloxacin (5 µg), and ceftizoxim (30 µg) disks...
2017: GMS Hygiene and Infection Control
https://www.readbyqxmd.com/read/28196977/synergistic-effects-of-vancomycin-and-%C3%AE-lactams-against-vancomycin-highly-resistant-staphylococcus-aureus
#13
Fumiaki Tabuchi, Yasuhiko Matsumoto, Masaki Ishii, Keita Tatsuno, Mitsuhiro Okazaki, Tomoaki Sato, Kyoji Moriya, Kazuhisa Sekimizu
We previously reported isolating vancomycin (VAN) highly resistant Staphylococcus aureus (VRSA) strains from clinical methicillin-resistant S. aureus strains by repeating steps of in vitro mutagenesis and VAN selection. Here we describe that the in vitro susceptibility of these VRSA strains to VAN was markedly increased by combined treatment with β-lactams such as ceftriaxone and oxacillin. Furthermore, in an in vivo silkworm infection model with VRSA, a combination of VAN and ceftriaxone exhibited therapeutic effects, whereas a combination of VAN and oxacillin did not...
February 15, 2017: Journal of Antibiotics
https://www.readbyqxmd.com/read/28196696/patients-hospitalized-abroad-as-importers-of-multiresistant-bacteria-a-cross-sectional-study
#14
Tamim Khawaja, Juha Kirveskari, Sara Johansson, Juuso Väisänen, Aurora Djupsjöbacka, Annika Nevalainen, Anu Kantele
OBJECTIVES: The pandemic spread of multidrug-resistant (MDR) bacteria poses a threat to healthcare worldwide, with highest prevalence in indigent regions of the (sub)tropics. As hospitalization constitutes a major risk factor for colonization, infection control management in low-prevalence countries urgently needs background data on patients hospitalized abroad. METHODS: We collected data on 1122 patients who, after hospitalization abroad, were treated at the Helsinki University Hospital between 2010 and 2013...
February 11, 2017: Clinical Microbiology and Infection
https://www.readbyqxmd.com/read/28196423/fecal-microbiota-transplantation-is-there-a-role-in-the-eradication-of-carbapenem-resistant-klebsiella-pneumoniae-intestinal-carriage
#15
Ana Ponte, Rolando Pinho, Margarida Mota
The authors present the case of a 66-year-old woman with four hospitalizations due to recurrent Clostridium difficile infection (CDI) non responsive to vancomycin and fidaxomicin. Furthermore, intestinal colonization with carbapenem-resistant Klebsiella pneumoniae (CRKP) was identified after a positive stool culture in a screening routinely performed in our center in patients recently hospitalized.
February 15, 2017: Revista Española de Enfermedades Digestivas
https://www.readbyqxmd.com/read/28195616/clinical-features-and-management-of-subretinal-abscesses-secondary-to-methicillin-resistant-staphylococcus-aureus-endogenous-endophthalmitis
#16
Jorge Fortun, Yasha S Modi, Angela Bessette, Jordan Heffez, Petros Carvounis, Daniel S Petkovsek, Nicholas G Anderson, Daniel Martin, Sunil Srivastava
BACKGROUND AND OBJECTIVE: To describe the clinical features, management, and immediate outcomes of patients with subretinal abscesses secondary to methicillin-resistant Staphylococcus aureus (MRSA) endogenous endophthalmitis. PATIENTS AND METHODS: Eleven eyes of seven patients were identified by retrospective chart review. Demographics, initial presentation, examination findings, imaging, cultures, treatments, and short-term outcomes were reviewed. RESULTS: Eleven eyes of seven patients presented with subretinal abscesses secondary to MRSA endogenous endophthalmitis...
February 1, 2017: Ophthalmic Surgery, Lasers & Imaging Retina
https://www.readbyqxmd.com/read/28195096/genotyping-of-clinical-and-environmental-multidrug-resistant-enterococcus-faecium-strains
#17
Leili Shokoohizadeh, Ashraf Mohabati Mobarez, Masoud Alebouyeh, Mohammad Reza Zali, Reza Ranjbar
CONTEXT: Multidrug resistant (MDR) Enterococcus faecium is a nosocomial pathogen and clonal complex 17 (CC17) is the main genetic subpopulation of E. faecium in hospitals worldwide. AIMS: There has thus far been no report of major E. faecium clones in Iranian hospitals. SUBJECTS AND METHODS: The present study analyzed strains of MDR E. faecium obtained from patients and the Intensive Care Unit environments using pulsed field gel electrophoresis (PFGE) and multilocus sequence typing (MLST) to determine the antibiotic resistance patterns and genetic features of the dominant...
January 2017: Indian Journal of Pathology & Microbiology
https://www.readbyqxmd.com/read/28192677/prevalence-of-antibiotic-resistance-genes-in-bacterial-communities-associated-with-i-cladophora-glomerata-i-mats-along-the-nearshore-of-lake-ontario
#18
Michael Ibsen, Dinesh Fernando, Ayush Kumar, Andrea Kirkwood
The alga <i>Cladophora glomerata</i> can erupt in nuisance blooms throughout the lower Great Lakes. Since bacterial abundance increases with the emergence and decay of <i>Cladophora</i>, we investigated the prevalence of antibiotic resistance (ABR) in <i>Cladophora</i>-associated bacterial communities up-gradient and down-gradient from a large sewage treatment plant (STP) on Lake Ontario. Although STPs are well-known sources of ABR, we also expected detectable ABR from up-gradient wetland communities since they receive surface run-off from urban and agricultural sources...
February 13, 2017: Canadian Journal of Microbiology
https://www.readbyqxmd.com/read/28188831/lipoteichoic-acid-synthesis-inhibition-in-combination-with-antibiotics-abrogates-growth-of-multidrug-resistant-enterococcus-faecium
#19
Fernanda L Paganelli, Tim van de Kamer, Ellen C Brouwer, Helen L Leavis, Neil Woodford, Marc J M Bonten, Rob J L Willems, Antoni P A Hendrickx
Enterococcus faecium is a multidrug-resistant (MDR) nosocomial pathogen causing significant morbidity in debilitated patients. New antimicrobials are needed to treat antibiotic-resistant E. faecium infections in hospitalised patients. E. faecium incorporates lipoteichoic acid (LTA) (1,3-polyglycerol-phosphate linked to glycolipid) in its cell wall. The small-molecule inhibitor 1771 [2-oxo-2-(5-phenyl-1,3,4-oxadiazol-2-ylamino)ethyl 2-naphtho[2,1-b]furan-1-ylacetate] specifically blocks the activity of Staphylococcus aureus LtaS synthase, which polymerises 1,3-glycerolphosphate into LTA polymers...
February 7, 2017: International Journal of Antimicrobial Agents
https://www.readbyqxmd.com/read/28187785/longevity-and-gender-as-the-risk-factors-of-methicillin-resistant-staphylococcus-aureus-infections-in-southern-poland
#20
Monika Pomorska-Wesołowska, Anna Różańska, Joanna Natkaniec, Barbara Gryglewska, Anna Szczypta, Mirosława Dzikowska, Agnieszka Chmielarczyk, Jadwiga Wójkowska-Mach
BACKGROUND: The proportion of older people among the general population has risen. Staphylococcus aureus (SA) constitutes a significant problem. Underlying disease and functional debility, predispose the older adult to staphylococcal carriage and infection, specially bloodstream infection and pneumonia. METHODS: This is a retrospective cohort study of older patients with SA infections. We analyzed a database containing the results of laboratory cultures from patients treated in 2013 for SA infections and selected 613 hospitalized and non-hospitalized people aged ≥60 years...
February 10, 2017: BMC Geriatrics
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