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https://www.readbyqxmd.com/read/28220309/transseptal-suturing-technique-in-septoplasty-impact-on-bacteremia-and-nosocomial-colonization
#1
Onur Ismi, Cengiz Ozcan, Yusuf Vayısoğlu, Candan Öztürk, Sebahat Aslan Tek, Kemal Görür
Although effects of Merocel(®) nasal packs and silicone splints on nasal flora alterations and bacteremia formation after septoplasty were assessed before, the effect of transseptal suturing technique has not been studied yet. The objective of this study is to compare nasal flora alterations and bacteremia occurrence rates between Merocel packs, silicone splints, and transseptal suturing technique in septoplasty. Ninety patients were divided into three groups randomly: Merocel packing (Group M), silicone splint (Group S), and transseptal suturing without packing (Group T)...
February 20, 2017: European Archives of Oto-rhino-laryngology
https://www.readbyqxmd.com/read/28167542/in-vitro-activity-of-delafloxacin-when-tested-against-contemporary-bacterial-pathogens-from-the-united-states-and-europe-2014
#2
M A Pfaller, H S Sader, P R Rhomberg, R K Flamm
The in vitro activities of delafloxacin and comparator antimicrobial agents were tested against 6,485 bacterial isolates from medical centers in Europe (EU) and the United States (US) in 2014. Delafloxacin was the most potent agent tested against methicillin-susceptible S. aureus (MSSA), MRSA, Streptococcus pneumoniae, viridans group streptococci, and β-hemolytic streptococci and had activity similar to that of ciprofloxacin and levofloxacin against certain members of the Enterobacteriaceae. Overall the broadest coverage of tested pathogens (Gram-positive cocci and Gram-negative bacilli) was observed with meropenem and tigecycline in both EU and US...
February 6, 2017: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/28159672/influence-of-vancomycin-minimum-inhibitory-concentration-on-the-outcome-of-methicillin-susceptible-staphylococcus-aureus-left-sided-infective-endocarditis-treated-with-anti-staphylococcal-beta-lactam-antibiotics-a-prospective-cohort-study-by-the-international
#3
Juan M Pericàs, Julia A Messina, Cristina Garcia-de-la-Maria, Lawrence Park, Batu K Sharma-Kuinkel, Francesc Marco, Dannah Wray, Zeina Kanafani, Manuela Carugati, Emanuele Durante-Mangoni, Pierre Tattevin, Vivian H Chu, Asuncion Moreno, Vance G Fowler, Jose M Miró
OBJECTIVES: A recent study showed a poorer prognosis in left-sided MSSA endocarditis treated with cloxacillin when the vancomycin MIC was ≥1.5 mg/L. We aimed to validate these results using the International Collaboration on Endocarditis cohort and to analyze whether specific genetic characteristics were associated with a high vancomycin MIC (≥1.5 mg/L) phenotype. METHODS: All patients with left-sided MSSA IE treated with anti-staphylococcal beta-lactam antibiotics between 2000 and 2006 with available isolates were included...
January 31, 2017: Clinical Microbiology and Infection
https://www.readbyqxmd.com/read/28159446/in-vitro-activity-of-oritavancin-against-gram-positive-pathogens-isolated-in-canadian-hospital-laboratories-from-2011-to-2015
#4
James A Karlowsky, Andrew J Walkty, Melanie R Baxter, Francis F Arhin, Gregory Moeck, Heather J Adam, George G Zhanel
Gram-positive bacterial pathogens isolated from patient specimens submitted to 15 Canadian hospital laboratories from 2011 to 2015 were tested in the coordinating laboratory for susceptibility to oritavancin and comparative antimicrobial agents using the Clinical and Laboratory Standards Institute M07-A10 (2015) broth microdilution method. Oritavancin's in vitro activity was equivalent to, or more potent than, vancomycin, daptomycin, linezolid, and tigecycline against methicillin-susceptible Staphylococcus aureus (n=2680; oritavancin MIC90, 0...
January 20, 2017: Diagnostic Microbiology and Infectious Disease
https://www.readbyqxmd.com/read/28151984/livestock-associated-staphylococcus-aureus-on-polish-pig-farms
#5
Aneta Mroczkowska, Jacek Żmudzki, Natalia Marszałek, Monika Orczykowska-Kotyna, Iga Komorowska, Agnieszka Nowak, Anna Grzesiak, Ewelina Czyżewska-Dors, Arkadiusz Dors, Zygmunt Pejsak, Waleria Hryniewicz, Tomasz Wyszomirski, Joanna Empel
BACKGROUND: Livestock-associated Staphylococcus aureus (LA-SA) draws increasing attention due to its particular ability to colonize farm animals and be transmitted to people, which in turn leads to its spread in the environment. The aim of the study was to determine the dissemination of LA-SA on pig farms selected throughout Poland, characterize the population structure of identified S. aureus, and assess the prevalence of LA-SA carriage amongst farmers and veterinarians being in contact with pigs...
2017: PloS One
https://www.readbyqxmd.com/read/28146185/-community-acquired-staphylococcus-aureus-isolated-from-paraguayan-children-clinical-phenotypic-and-genotypic-characterization
#6
Rosa Guillén, Letizia Carpinelli, Fátima Rodríguez, Héctor Castro, Beatriz Quíñónez, Ana Campuzano, María Macchi, Juana Ortellado, Patricia Almada, Lorena Grau, Mónica Rodríguez, Gladys Velázquez, Carmen Espínola, Gloría Samudio, Gloria Gómez, Wilma Basualdo
INTRODUCTION: The prevalence of Staphylococcus aureus in the community has increased, being the pediatric population the most affected. This fact highlights the need for epidemiological surveillance. AIM: To characterize clinical, phenotypic and genotypic isolates of S. aureus children's samples with community-acquired infections, collected in hospitals of Asuncion and the Central Department, between November 2009 and December 2010. MATERIALS AND METHODS: Descriptive and transverse analysis with analytical component...
December 2016: Revista Chilena de Infectología: órgano Oficial de la Sociedad Chilena de Infectología
https://www.readbyqxmd.com/read/28138384/hospital-clones-of-methicillin-resistant-staphylococcus-aureus-are-carried-by-medical-students-even-before-healthcare-exposure
#7
Ido Orlin, Assaf Rokney, Avi Onn, Daniel Glikman, Avi Peretz
BACKGROUND: Methicillin-resistant Staphylococcus aureus (MRSA) strains are prevalent in healthcare and the community. Few studies have examined MRSA carriage among medical students. The aim of this study is to examine Staphylococcus aureus (SA) carriage, and particular MRSA, over time in cohort medical students. METHODS: Prospective collection of nasal swabs from medical students in Israel and assessment of SA carriage. Three samples were taken per student in preclinical and clinical parts of studies...
2017: Antimicrobial Resistance and Infection Control
https://www.readbyqxmd.com/read/28120906/insight-into-generation-and-evolution-of-sea-salt-aerosols-from-field-measurements-in-diversified-marine-and-coastal-atmospheres
#8
Limin Feng, Hengqing Shen, Yujiao Zhu, Huiwang Gao, Xiaohong Yao
This report focuses on studying generation and/or evolution of sea-salt aerosols (SSA) on basis of measurements in the Northwest Pacific Ocean (NWPO), the marginal seas of China, at sea-beach sites and a semi-urban coastal site in 2012-2015. From measurements in the NWPO, we obtained the smallest generation function of the super-micron SSA mass ([MSSA]) by the local wind comparing to those previously reported. Vessel-caused wave-breaking was found to greatly enhance generation of SSA and increase [MSSA], which was subject to non-natural generation of SSA...
January 25, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28120188/phenotypic-and-genotypic-correlates-of-daptomycin-resistant-methicillin-susceptible-staphylococcus-aureus-clinical-isolates
#9
Kyoung-Mi Kang, Nagendra N Mishra, Kun Taek Park, Gi-Yong Lee, Yong Ho Park, Arnold S Bayer, Soo-Jin Yang
Daptomycin (DAP) has potent activity in vitro and in vivo against both methicillin-susceptible Staphylococcus aureus (MSSA) and methicillin-resistant S. aureus (MRSA) strains. DAP-resistance (DAP-R) in S. aureus has been mainly observed in MRSA strains, and has been linked to single nucleotide polymorphisms (SNPs) within the mprF gene leading to altered cell membrane (CM) phospholipid (PL) profiles, enhanced positive surface charge, and changes in CM fluidity. The current study was designed to delineate whether these same genotypic and phenotypic perturbations are demonstrated in clinically-derived DAP-R MSSA strains...
February 2017: Journal of Microbiology / the Microbiological Society of Korea
https://www.readbyqxmd.com/read/28116552/characterisation-of-staphylococcus-aureus-isolates-from-bloodstream-infections-democratic-republic-of-the-congo
#10
S Vandendriessche, H De Boeck, A Deplano, M-F Phoba, O Lunguya, D Falay, N Dauly, J Verhaegen, O Denis, J Jacobs
Staphylococcus aureus is known worldwide as an invasive pathogen, but information on S. aureus from bloodstream infections in Central Africa remains scarce. A collection of S. aureus blood culture isolates recovered from hospitals in four provinces in the Democratic Republic of the Congo (2009-2013) was assessed. A total of 27/108 isolates were methicillin-resistant S. aureus (MRSA), of which >70% were co-resistant to aminoglycosides, tetracyclines, macrolides and lincosamides. For MRSA and methicillin-susceptible S...
January 23, 2017: European Journal of Clinical Microbiology & Infectious Diseases
https://www.readbyqxmd.com/read/28111724/update-of-the-activity-of-telavancin-against-a-global-collection-of-staphylococcus-aureus-causing-bacteremia-including-endocarditis-2011-2014
#11
R E Mendes, H S Sader, J I Smart, M Castanheira, R K Flamm
The efficacy and safety of telavancin is under evaluation for the treatment of subjects with complicated Staphylococcus aureus bacteremia and S. aureus right-sided infective endocarditis. This study evaluated the telavancin activity against a global collection of S. aureus causing bloodstream infections (BSI), including endocarditis, to support the development of bacteremia/endocarditis clinical indications. This study included a total of 4191 S. aureus [1490 methicillin-resistant S. aureus (MRSA)], which were unique (one per patient) clinical isolates recovered from blood samples collected during 2011-2014 in a global network of hospitals...
January 22, 2017: European Journal of Clinical Microbiology & Infectious Diseases
https://www.readbyqxmd.com/read/28096484/evolutionary-dynamics-of-pandemic-methicillin-sensitive-staphylococcus-aureus-st398-and-its-international-spread-via-routes-of-human-migration
#12
Anne-Catrin Uhlemann, Paul R McAdam, Sean B Sullivan, Justin R Knox, Hossein Khiabanian, Raul Rabadan, Peter R Davies, J Ross Fitzgerald, Franklin D Lowy
: Methicillin-susceptible Staphylococcus aureus (MSSA) accounts for the majority of S. aureus infections globally, and yet surprisingly little is known about its clonal evolution. We applied comparative whole-genome sequencing (WGS) analyses to epidemiologically and geographically diverse ST398-MSSA, a pandemic lineage affecting both humans and livestock. Bayesian phylogenetic analysis predicted divergence of human-associated ST398-MSSA ~40 years ago. Isolates from Midwestern pigs and veterinarians differed substantially from those in New York City (NYC)...
January 17, 2017: MBio
https://www.readbyqxmd.com/read/28095918/anti-staphylococcal-activity-resulting-from-epithelial-lining-fluid-elf-concentrations-of-amikacin-inhale-administered-via-the-pulmonary-drug-delivery-system
#13
Islam M Ghazi, Mordechai Grupper, David P Nicolau
BACKGROUND: Amikacin inhale (BAY41-6551), a unique drug-device combination of a specially formulated drug solution and a pulmonary drug delivery system device (AMK-I) is currently under phase III study as an adjunctive therapy to IV antibiotics for the treatment of Gram-negative pneumonia in mechanically ventilated patients. While the epidemiology of nosocomial pneumonia is predominated by Gram-negative pathogens such as Pseudomonas aeruginosa and the Enterobacteriaceae, Staphylococcus aureus is increasingly recognized as a pathogen of concern for these pulmonary based infections...
January 17, 2017: Annals of Clinical Microbiology and Antimicrobials
https://www.readbyqxmd.com/read/28078559/empirical-combination-of-a-%C3%AE-lactam-to-vancomycin-may-not-improve-outcomes-of-methicillin-susceptible-staphylococcus-aureus-bacteremia-compared-to-vancomycin-monotherapy
#14
G E Park, J-H Ko, S Y Cho, Y E Ha, N Y Lee, C-I Kang, D R Chung, J-H Song, K R Peck
To evaluate effect of empirical combination of a β-lactam to vancomycin and vancomycin monotherapy in Staphylococcus aureus bacteremia (MSSA-B), we conducted a retrospective cohort study. Electronic medical records of individuals who were diagnosed with MSSA-B between January 2005 and February 2015 at a tertiary care center were reviewed. Patients were classified into three groups according to empirical antibiotic regimen (BL group, β-lactam; VAN group, vancomycin; BV group, combination of β-lactam and vancomycin), and 30-day all-cause mortality of each group was compared...
January 11, 2017: European Journal of Clinical Microbiology & Infectious Diseases
https://www.readbyqxmd.com/read/28066967/artepillin-c-and-phenolic-compounds-responsible-for-antimicrobial-and-antioxidant-activity-of-green-propolis-and-baccharis-dracunculifolia-dc
#15
R S Veiga, S Mendonça, P B Mendes, N Paulino, M J Mimica, A A Lagareiro Netto, I S Lira, B G C López, V Negrão, M C Marcucci
AIMS: This study investigates the antimicrobial activity in Staphylococcus aureus isolates (MSSA - Methicillin Sensitive Staphylococcus aureus and MRSA - Methicillin Resistant Staphylococcus aureus) and antioxidant activity of green propolis, Baccharis dracunculifolia DC extracts and Artepillin C(™) . METHODS AND RESULTS: The amount of Artepillin C in different extracts was determined by HPLC analysis. Minimum Inhibitory Concentrations 90 (MIC90) was determined using 40 isolates of Staphylococcus aureus inoculated in Müeller-Hinton agar culture medium containing the green-propolis and Baccharis dracunculifolia DC extracts...
January 9, 2017: Journal of Applied Microbiology
https://www.readbyqxmd.com/read/28066112/in-vitro-effectiveness-of-triterpenoids-and-their-synergistic-effect-with-antibiotics-against-staphylococcus-aureus-strains
#16
Muhammad Hamza, Maha Nadir, Nadir Mehmood, Adeel Farooq
OBJECTIVES: The aim of this study is to evaluate the effect of four triterpenoids such as oleanolic acid, ursolic acid, cycloastragenol, and beta-boswellic acid alone and in combination with antibiotics against Staphylococcus aureus strains. MATERIALS AND METHODS: Sixteen clinical strains of S. aureus from infected wounds were isolated. Eight were methicillin-sensitive S. aureus (MSSA), and the other eight were methicillin-resistant S. aureus (MRSA). The activity was also seen in reference S...
November 2016: Indian Journal of Pharmacology
https://www.readbyqxmd.com/read/28056831/nasal-carriage-of-methicillin-resistant-staphylococcus-aureus-among-health-care-workers-at-al-shifa-hospital-in-gaza-strip
#17
Nabil Abdullah El Aila, Nahed Ali Al Laham, Basim Mohammad Ayesh
BACKGROUND: Nasal carriage of Staphylococcus aureus among hospital personnel is a common cause of hospital acquired infections. Emergence of drug resistant strains especially methicillin resistant S. aureus (MRSA) is a serious problem in hospital environment. Therefore, the aim of this study was to determine the nasal carriage rate of S. aureus and MRSA among Health Care Workers (HCWs) at Al Shifa Hospital, the major hospital in Gaza Strip. METHODS: A cross sectional study was conducted on 200 HCWs...
January 5, 2017: BMC Infectious Diseases
https://www.readbyqxmd.com/read/28055287/epidemiology-treatment-and-economics-of-patients-presenting-to-the-emergency-department-for-skin-and-soft-tissue-infections
#18
Kristin E Linder, David P Nicolau, Michael D Nailor
OBJECTIVES: Skin and soft tissue infections (SSTIs) are among the most common bacterial diseases and represent a significant disease burden. The purpose of this study was to describe the real-world management of patients with SSTIs presenting to the emergency department (ED). METHODS: This is a retrospective cohort study. Adult patients identified with a primary diagnosis of SSTI determined by ICD-9 codes were assessed from index presentation for up to 30 days...
February 2017: Hospital Practice (Minneapolis)
https://www.readbyqxmd.com/read/28041629/prevalence-of-and-outcomes-from-staphylococcus-aureus-pneumonia-among-hospitalized-patients-in-the-united-states-2009-2012
#19
David M Jacobs, Amy Shaver
BACKGROUND: The burden of Staphylococcus aureus pneumonia is unknown despite being a major cause of mortality. We investigated national estimates of methicillin-resistant S aureus (MRSA) and methicillin-susceptible S aureus (MSSA) pneumonias and predictors of in-hospital mortality and hospital length of stay (LOS). METHODS: This was a retrospective analysis of the National Inpatient Sample from 2009-2012. Adult patients with an ICD-9-CM primary diagnosis code for MRSA or MSSA pneumonia were included...
December 30, 2016: American Journal of Infection Control
https://www.readbyqxmd.com/read/28035690/%C3%AE-lactam-therapy-for-methicillin-susceptible-staphylococcus-aureus-bacteremia-a-comparative-review-of-cefazolin-versus-antistaphylococcal-penicillins
#20
Julius Li, Kelly L Echevarria, Kristi A Traugott
Methicillin-susceptible Staphylococcus aureus (MSSA) bacteremia is associated with high morbidity and mortality. Traditionally, antistaphylococcal penicillins (ASPs) have been considered the agents of choice for the treatment of MSSA bacteremia. Vancomycin has been demonstrated to have poorer outcomes in several studies and is only recommended for patients with severe penicillin allergies. Although cefazolin is considered as an alternative to the ASPs for patients with nonsevere penicillin allergies, cefazolin offers several pharmacologic advantages over ASPs, such as more convenient dosing regimens, and antimicrobial stewardship programs are increasingly using cefazolin as the preferential agent for MSSA infections as part of cost-saving initiatives...
December 30, 2016: Pharmacotherapy
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