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https://www.readbyqxmd.com/read/28736269/iodine-lithium-alpha-dextrin-il%C3%AE-d-against-staphylococcus-aureus-skin-infections-a-comparative-study-of-in-vitro-bactericidal-activity-and-cytotoxicity-between-il%C3%AE-d-and-povidone-iodine
#1
A P Zisi, M K Exindari, E K Siska, G G Koliakos
BACKGROUND: As antimicrobial resistance continuously increases, revisiting old antimicrobial agents, modified to enhance efficacy and safety, becomes important. Iodine has been widely used for more than 150 years as a wound and skin disinfectant; it is an effective broad range bactericide, and to date, it lacks reports of resistance development. The most important iodine-based agent is Povidone-Iodine (PVP-I) which provides excellent antibacterial activity. However, its safety profile has been questioned...
July 20, 2017: Journal of Hospital Infection
https://www.readbyqxmd.com/read/28735135/endoscope-assisted-abscess-drainage-secondary-to-endoscope-assisted-tlif-1-year-follow-up
#2
Karthik Madhavan, Steven Shelby Burks, Lee Onn Chieng, Anand Veeravagu, Michael Y Wang
INTRODUCTION: Endoscopic discectomy and fusions have been gaining popularity in the recent past and are noted to be safe for its application in elderly population. It involves ultra-small incision for discectomy followed by placement of percutaneous screws in awake patients. Treatment of advanced spinal pathology using endoscope-assisted techniques are challenging. Although not common with endoscopic approach, post-operative infection can be problematic as there are no established guidelines on its management...
July 19, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28735053/activity-of-dalbavancin-tested-against-gram-positive-clinical-isolates-causing-skin-and-skin-structure-infections-in-paediatric-patients-from-us-hospitals-2014-2015
#3
Michael A Pfaller, Rodrigo E Mendes, Helio S Sader, Mariana Castanheira, Robert K Flamm
OBJECTIVES: This study provides an in vitro analysis of dalbavancin activity against isolates causing skin and skin structure infections (SSSIs) in children. METHODS: 770 Staphylococcus aureus, 167 β-hemolytic streptococci (BHS), 42 coagulase-negative staphylococci (CoNS), 25 Enterococcus faecalis and 13 viridans group streptococci (VGS) were collected from children (<18 y/o) in the United States (2014-2015). RESULTS: Dalbavancin had MIC50/90 values of 0...
July 19, 2017: Journal of Global Antimicrobial Resistance
https://www.readbyqxmd.com/read/28727951/in-vitro-activity-of-telavancin-against-clinically-important-gram-positive-pathogens-from-69-u-s-medical-centers-2015-potency-analysis-by-u-s-census-divisions
#4
Michael A Pfaller, Helio S Sader, Robert K Flamm, Mariana Castanheira, Jennifer I Smart, Rodrigo E Mendes
A total of 8,072 gram-positive isolates collected from 69 medical centers among all 9 U.S. Census Divisions during the 2015 SENTRY Antimicrobial Surveillance Program were included. Telavancin had minimal inhibitory concentration (MIC)50 and MIC90 values of 0.03/0.06 μg/mL, respectively, against methicillin-susceptible (MSSA) and methicillin-resistant Staphylococcus aureus (MRSA). Similar activity was also observed among coagulase-negative staphylococci (MIC50/90, 0.03/0.06 μg/ml; 100.0% inhibited by ≤0...
July 20, 2017: Microbial Drug Resistance: MDR: Mechanisms, Epidemiology, and Disease
https://www.readbyqxmd.com/read/28724560/accurate-detection-of-methicillin-resistant-staphylococcus-aureus-in-mixtures-utilizing-single-bacterial-duplex-droplet-digital-pcr
#5
Jun Luo, Junhua Li, Hang Yang, Junping Yu, Hongping Wei
Accurate and rapid identification of methicillin-resistant Staphylococcus aureus (MRSA) is needed to screen MRSA carriers and improve treatment. The current widely used duplex PCR methods are not able to differentiate MRSA from the co-existence of methicillin-susceptible S. aureus (MSSA) and other methicillin-resistant Staphylococci In this study, we aimed to develop a direct method for accurate and rapid detection of MRSA in clinical samples from open environments, such as nasal swab. The new molecular assay is based on detecting the co-occurrence of nuc and mecA markers in a single bacterial cell by utilizing droplet digital PCR (ddPCR) with a chimeric lysin ClyH for cell lysis...
July 19, 2017: Journal of Clinical Microbiology
https://www.readbyqxmd.com/read/28721014/determining-optimal-dosing-regimen-of-oral-administration-of-dicloxacillin-using-monte-carlo-simulation
#6
Wei Yu, Jinru Ji, Tingting Xiao, Chaoqun Ying, Jiaheng Fang, Ping Shen, Yonghong Xiao
BACKGROUND: Dicloxacillin, a semisynthetic isoxazolyl penicillin, exhibits antimicrobial activity against a wide variety of Gram-positive bacteria, as well as stability against penicillinases and low level of toxicity. The objective of this study was to obtain optimal dosing regimen of oral administration of dicloxacillin by analyzing the pharmacokinetic (PK) index in healthy volunteers and in vitro antibacterial activity by using Monte Carlo simulation. MATERIALS AND METHODS: A total of 867 clinical isolates from community-onset infections were collected from 31 secondary hospitals in People's Republic of China...
2017: Drug Design, Development and Therapy
https://www.readbyqxmd.com/read/28717843/septic-arthritis-associated-with-systemic-sepsis
#7
Sung-Weon Jung, Dong-Hee Kim, Sung-Jin Shin, Byoung-Youl Kang, Yil-Ju Eho, Seong-Wook Yang
PURPOSE: Septic arthritis presents with good joint function, but sometimes leads to poor outcomes. Concurrent systemic sepsis has been regarded as the poor outcome, and the exact cause remains unclear. This paper was performed to identify factors associated with concurrent systemic sepsis and to research results to predict poor outcomes in patients with septic arthritis. METHODS: Laboratory and medical data were reviewed for 137 adults with acute septic arthritis who underwent open or arthroscopic surgical debridement at our institution between January 2005 and December 2014...
July 17, 2017: International Orthopaedics
https://www.readbyqxmd.com/read/28704818/active-surveillance-cultures-and-targeted-decolonization-are-associated-with-reduced-methicillin-susceptible-staphylococcus-aureus-infections-in-vlbw-infants
#8
Lukas Wisgrill, Johanna Zizka, Lukas Unterasinger, Judith Rittenschober-Böhm, Thomas Waldhör, Athanasios Makristathis, Angelika Berger
BACKGROUND: Methicillin-susceptible Staphylococcus aureus (MSSA) is a major contributor to infectious episodes of very low birth weight infants (VLBWI), resulting in significant morbidity and mortality. OBJECTIVE: To examine the efficacy and safety of surveillance cultures and the decolonization of MSSA-colonized VLBWI. METHODS: VLBWI admitted to our neonatal wards in 2011-2016 were retrospectively analyzed. Rates of MSSA-attributable infections were compared before and after the implementation of active surveillance cultures and the decolonization of MSSA-colonized patients...
July 14, 2017: Neonatology
https://www.readbyqxmd.com/read/28698037/cefazolin-versus-anti-staphylococcal-penicillins-for-treatment-of-methicillin-susceptible-staphylococcus-aureus-bacteremia-a-narrative-review
#9
REVIEW
Paul Loubet, Charles Burdet, William Vindrios, Nathalie Grall, Michel Wolff, Yazdan Yazdanpanah, Antoine Andremont, Xavier Duval, François-Xavier Lescure
BACKGROUND: Anti-staphylococcal penicillins (ASPs) are recommended as first-line agents in methicillin-susceptible Staphylococcus aureus (MSSA) bacteremia. Concerns about the safety profile have contributed to the increased use of cefazolin. The comparative clinical effectiveness and safety profile of cefazolin versus ASPs for such infections remain unclear. Furthermore, uncertainty persists concerning the use of cefazolin due to controversies over its efficacy in deep MSSA infections and its possible negative ecological impact...
July 8, 2017: Clinical Microbiology and Infection
https://www.readbyqxmd.com/read/28694202/comparative-outcomes-of-cefazolin-versus-nafcillin-for-methicillin-susceptible-staphylococcus-aureus-bacteremia-a-prospective-multi-center-cohort-study-in-korea
#10
Shinwon Lee, Kyoung-Ho Song, Sook-In Jung, Wan Beom Park, Sun Hee Lee, Yeon-Sook Kim, Yee Gyung Kwak, Young Keun Kim, Sung Min Kiem, Hye-In Kim, Eu Suk Kim, Kyung-Hwa Park, Nam Joong Kim, Hee-Chang Jang, Hong Bin Kim
OBJECTIVES: No randomized controlled trials have evaluated the comparative outcomes of cefazolin versus nafcillin for methicillin-susceptible Staphylococcus aureus (MSSA) bacteremia. METHODS: A prospective observational cohort study including all S. aureus bacteremia was conducted at 10 hospitals. Patients (≥15 years) with MSSA bacteremia who received cefazolin or nafcillin as definitive antibiotics were included. The rates of treatment failure (premature discontinuation of antibiotics due to adverse effects, switching of antibiotics due to clinical failure, all-cause mortality within one month, or recurrence) were compared between the cefazolin and nafcillin groups...
July 7, 2017: Clinical Microbiology and Infection
https://www.readbyqxmd.com/read/28693489/inducible-clindamycin-and-methicillin-resistant-staphylococcus-aureus-in-a-tertiary-care-hospital-kathmandu-nepal
#11
R P Adhikari, S Shrestha, A Barakoti, R Amatya
BACKGROUND: Staphylococcus aureus, an important nosocomial pathogen, is frequently associated with infections in human. The management of the infections by it especially methicillin resistant ones is often difficult because methicillin resistant S. aureus is usually resistant to multiple antibiotics. Macrolide-lincosamide streptogramin B family of antibiotics is commonly used to treat such infections as an alternative to vancomycin. METHODS: This study was conducted over the period of one and half year from November 2013-April 2015 in Microbiology laboratory of Nepal Medical College and Teaching Hospital, Kathmandu, Nepal to find the incidence of different phenotypes of MLSB resistance among S...
July 11, 2017: BMC Infectious Diseases
https://www.readbyqxmd.com/read/28679522/next-generation-sequence-analysis-reveals-methicillin-resistance-transfer-to-a-methicillin-susceptible-staphylococcus-aureus-mssa-strain-that-subsequently-caused-a-methicillin-resistant-staphylococcus-aureus-mrsa-outbreak-a-descriptive-study
#12
Veronica Weterings, Thijs Bosch, Sandra Witteveen, Fabian Landman, Leo Schouls, Jan Kluytmans
Resistance to methicillin in Staphylococcus aureus is primarily caused by the mecA gene, which is carried on a mobile genetic element: the staphylococcal cassette chromosome mec (SCCmec). Horizontal transfer of this element is supposed to play an important factor in the emergence of new clones of methicillin-resistant Staphylococcus aureus (MRSA), but has been rarely observed in real-time.In 2012, an outbreak occurred involving a healthcare worker (HCW) and three patients all carrying a fusidic-acid resistant MRSA strain...
July 5, 2017: Journal of Clinical Microbiology
https://www.readbyqxmd.com/read/28673701/synergistic-effect-of-non-steroidal-anti-inflammatory-drugs-nsaids-on-antibacterial-activity-of-cefuroxime-and-chloramphenicol-against-methicillin-resistant-staphylococcus-aureus
#13
Elaine Wang Ling Chan, Zong Yang Yee, Iswara Raja, Jeremy Kean Yi Yap
OBJECTIVES: Currently, only a few antibiotics are available to treat methicillin-resistant Staphylococcus aureus (MRSA). One alternative approach includes adjuvants to antibiotic therapy. Non-steroidal anti-inflammatory drugs (NSAIDs) are non-antibiotic drugs reported to exhibit antibacterial activity. The objective of this study was to investigate the interaction between NSAIDs with selected antibiotics (cefuroxime and chloramphenicol) against strains of S. aureus. METHODS: The antibacterial activity of four NSAIDs (aspirin, ibuprofen, diclofenac and mefenamic acid) were tested against ten pathogenic bacterial strains using the microdilution broth method...
June 30, 2017: Journal of Global Antimicrobial Resistance
https://www.readbyqxmd.com/read/28668678/moxifloxacin-plus-rifampin-as-an-alternative-for-levofloxacin-plus-rifampin-in-the-treatment-of-a-prosthetic-joint-infection-with-staphylococcus-aureus
#14
Marjan Wouthuyzen-Bakker, Eduard Tornero, Laura Morata, Prashant V Nannan Panday, Paul C Jutte, Guillem Bori, Greetje A Kampinga, Alex Soriano
OBJECTIVES: The combination of a fluorquinolone with rifampin is one of the cornerstones in the treatment of a prosthetic joint infection (PJI) caused by staphylococci. Moxifloxacin is highly active against methicillin susceptible S. aureus (MSSA), and therefore, an attractive agent to use. However, several studies reported a lowering in serum moxifloxacin levels when combined with rifampin. The clinical relevance remains unclear. We determined the outcome of patients with an early acute PJI caused by MSSA treated either with moxifloxacin/rifampin or levofloxacin/rifampin...
June 28, 2017: International Journal of Antimicrobial Agents
https://www.readbyqxmd.com/read/28668467/identification-of-a-pvl-negative-sccmec-iva-sub-lineage-of-the-methicillin-resistant-staphylococcus-aureus-cc80-lineage-understanding-the-clonal-origin-of-ca-mrsa
#15
Sofie Marie Edslev, Henrik Torkil Westh, Paal Skytt Andersen, Robert Skov, Nobumichi Kobayashi, Mette Damkjær Bartels, Francois Vandenesh, Andreas Petersen, Peder Worning, Anders Rhod Larsen, Marc Stegger
OBJECTIVES: Community-acquired MRSA (CA-MRSA) isolates belonging to clonal complex 80 (CC80) are recognized as the European CA-MRSA. The prevailing European CA-MRSA clone carries a type IVc staphylococcal cassette chromosome mec (SCCmec) and expresses Panton-Valentine leukocidin (PVL). Recently, a significant increase of PVL-negative CC80 MRSA has been observed in Denmark. The aim of this study was to examine the genetics and the epidemiology of these, and to compare them to the European CA-MRSA clone in order to understand the emergence of PVL-negative CC80 MRSA...
June 28, 2017: Clinical Microbiology and Infection
https://www.readbyqxmd.com/read/28668278/synthetic-scale-up-of-a-novel-fluorescent-probe-and-its-biological-evaluation-for-surface-detection-of-staphylococcus-aureus
#16
Luke Bywaters, Lauren Mulcahy-Ryan, Mark Fielder, Alex Sinclair, Adam Le Gresley
This paper reports on the LGX fluorometric test for enzymatic MRSA/MSSA detection. It highlights the reasons rhodamines have been overlooked and also strategies to improve the synthesis of rhodamine-peptide conjugates. Evaluation of the LGX test for detection of MRSA/MSSA on surfaces is undertaken in the presence of potentially confounding E. coli and S. epidermidis for the first time.
June 28, 2017: Molecular and Cellular Probes
https://www.readbyqxmd.com/read/28666780/impact-of-moving-to-a-new-hospital-build-with-a-high-proportion-of-single-rooms-on-healthcare-associated-infection-and-norovirus-outbreaks
#17
Elizabeth Darley
To determine whether moving to new-build hospital with 75% single-rooms reduced healthcare-associated infection rates, Clostridium difficile infection, meticillin-sensitive Staphylococcus aureus (MSSA) and Escherichia coli bacteraemia rates and bed-days lost during norovirus outbreaks over 5 years at North Bristol NHS Trust were analysed. C. difficile, MSSA bacteraemia and E. coli bacteraemia showed no change in decline rate post-move. Bed-days lost due to norovirus were significantly lower. Increased single room availability had an impact on interruption of highly contagious norovirus infection, dispersed via airborne route, in contrast to bacterial infection, which may originate from patient's own colonising flora and is not widely dispersed through airborne spread...
June 27, 2017: Journal of Hospital Infection
https://www.readbyqxmd.com/read/28666415/soluble-factors-from-biofilm-of-candida-albicans-and-staphylococcus-aureus-promote-cell-death-and-inflammatory-response
#18
Kassia de Carvalho Dias, Paula Aboud Barbugli, Fernanda de Patto, Virginia Barreto Lordello, Letícia de Aquino Penteado, Alexandra Ivo Medeiros, Carlos Eduardo Vergani
BACKGROUND: The objective of this study was to better understand the effects of soluble factors from biofilm of single- and mixed-species Candida albicans (C. albicans) and methicillin-sensitive Staphylococcus aureus (MSSA) cultures after 36 h in culture on keratinocytes (NOK-si and HaCaT) and macrophages (J774A.1). Soluble factors from biofilms of C. albicans and MSSA were collected and incubated with keratinocytes and macrophages, which were subsequently evaluated by cell viability assays (MTT)...
June 30, 2017: BMC Microbiology
https://www.readbyqxmd.com/read/28659889/rapid-phenotypic-detection-of-microbial-resistance-in-gram-positive-bacteria-by-a-real-time-laser-scattering-method
#19
Evgeny A Idelevich, Matthias Hoy, Dennis Görlich, Dennis Knaack, Barbara Grünastel, Georg Peters, Matthias Borowski, Karsten Becker
We developed a methodology for antimicrobial susceptibility testing (AST) based on the BacterioScan(TM)216R laser scattering technology, using methicillin resistance in Staphylococcus aureus and vancomycin resistance in enterococci as exemplar for important resistance phenotypes. Fifty methicillin-resistant (MRSA) and 50 methicillin-susceptible (MSSA) S. aureus, as well as 50 vancomycin-resistant enterococci (VRE) and 50 vancomycin-susceptible enterococci (VSE) isolates were used for the study. Optimal test conditions were derived by investigating the effects of inoculum size, medium, incubation temperature and broth filtration...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28650945/treatment-approach-for-infection-of-healed-fractures-after-internal-fixation
#20
Joshua M Lawrenz, Salvatore J Frangiamore, Ajinkya A Rane, W Alex Cantrell, Heather A Vallier
OBJECTIVE: To review the efficacy of a treatment approach for patients with infection and colonized implants after open reduction and internal fixation of fractures. DESIGN: Retrospective case series. SETTING: Level one trauma center. PATIENTS: Twenty patients were treated for wound infection with colonized implants after open reduction and internal fixation. INTERVENTION: Surgical debridement, removal of implants and a short post-operative oral antibiotic course...
June 15, 2017: Journal of Orthopaedic Trauma
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