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methicillin sensitive staphylococcus aureus

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https://www.readbyqxmd.com/read/28616475/clonal-diversity-of-methicillin-sensitive-staphylococcus-aureus-from-south-australian-wallabies
#1
Michelle M S Chen, Stefan Monecke, Melissa H Brown
Seven methicillin-sensitive Staphylococcus aureus nasal isolates from apparently healthy captive and wild wallabies were characterised by DNA microarray and antibiotic susceptibility assays. Isolates were found to belong to uncommon clonal complexes including those previously associated with birds, pigs and humans.
December 2016: One Health
https://www.readbyqxmd.com/read/28614287/nasal-swab-screening-for-staphylococcus-aureus-in-spinal-deformity-patients-treated-with-growing-rods
#2
Scott J Luhmann, June C Smith
BACKGROUND: Surgical-site infections are one of the most concerning complications in patients treated with growing rods (GR). The purpose of this study was to evaluate the use of preoperative screening for Staphylococcus aureus (SA) for all growing spine procedures, and if this would permit alteration of prophylactic antibiotics to cover the identified resistances. METHODS: All patients were identified who had SA screening during the course of GR treatment. In otal, 34 patients [23 neuromuscular (NMS), 4 congenital, 4 idiopathic scoliosis (IS), and 3 syndromic] were identified who had 111 preoperative screenings [79 lengthenings, 23 insertions, 6 revisions, and 3 conversions to posterior spinal fusions (PSF)]...
June 13, 2017: Journal of Pediatric Orthopedics
https://www.readbyqxmd.com/read/28611631/successful-treatment-of-chronic-staphylococcus-aureus-related-dermatoses-with-the-topical-endolysin-staphefekt-sa-100-a-report-of-3-cases
#3
Joan E E Totté, Martijn B van Doorn, Suzanne G M A Pasmans
Staphylococcus aureus plays an important role in skin and soft tissue infections and contributes to the pathophysiology of complex skin disorders such as atopic dermatitis. Bacterial resistance against commonly used antibiotics has increased considerably in the last decades demanding alternative treatment approaches. We present 3 cases where patients with chronic and recurrent S. aureus-related dermatoses were successfully treated with Staphefekt SA.100. Staphefekt SA.100 is a recombinant phage endolysin for topical skin application that specifically targets both methicillin-sensitive and methicillin-resistant S...
May 2017: Case Reports in Dermatology
https://www.readbyqxmd.com/read/28611348/early-detection-of-subclinical-aortic-valve-endocarditis-with-the-cardiomems-heart-failure-system
#4
Sinan Sarsam, Georgy Kaspar, Shukri David, Marcel Zughaib
BACKGROUND The CardioMEMS Heart Failure System is a well validated tool to optimize management of systolic and diastolic heart failure and has been shown to reduce the risk of hospitalization by 37%. We are reporting a unique case of acute aortic valve insufficiency as a first sign of endocarditis, detected early in a patient with the CardioMEMS device. CASE REPORT A 79-year-old man with dual bioprosthetic mitral and aortic valve replacement and non-ischemic cardiomyopathy had a CardioMEMS Heart Failure System implanted 2 months following valve replacement surgery...
June 14, 2017: American Journal of Case Reports
https://www.readbyqxmd.com/read/28607765/paediatric-bone-and-joint-infection
#5
REVIEW
Alexios D Iliadis, Manoj Ramachandran
Despite advances in understanding and management, paediatric osteoarticular infections continue to pose diagnostic difficulties for clinicians. Delays in diagnosis can lead to potentially devastating morbidity.No single investigation, including joint aspiration, is sufficiently reliable to diagnose conclusively paediatric bone and joint infection. Diagnosis should be based on a combination of clinical signs, imaging and laboratory investigations. Algorithms should supplement, and not replace, clinical decision making in all cases...
January 2017: EFORT open reviews
https://www.readbyqxmd.com/read/28592371/low-yield-of-blood-and-wound-cultures-in-patients-with-skin-and-soft-tissue-infections
#6
Jesus Torres, Nathaniel Avalos, Lamarr Echols, Jillian Mongelluzzo, Robert M Rodriguez
BACKGROUND: Current guidelines recommend blood cultures in skin and soft-tissue infection (SSTI) patients only with signs of systemic toxicity and wound cultures for severe purulent infections. Our objectives were to determine: 1) blood and wound culture yields in patients admitted with SSTIs; 2) whether injection drug users (IDUs) and febrile patients had higher blood culture yields; and 3) whether blood and wound cultures grew organisms sensitive to typical SSTI empiric antibiotics...
May 26, 2017: American Journal of Emergency Medicine
https://www.readbyqxmd.com/read/28587320/distribution-characteristics-of-staphylococcus-spp-in-different-phases-of-periprosthetic-joint-infection-a-review
#7
Geyong Guo, Jiaxing Wang, Yanan You, Jiaqi Tan, Hao Shen
Periprosthetic joint infection (PJI) is a devastating condition and Staphylococcus spp. are the predominant pathogens responsible, particularly coagulase-negative staphylococci (CoNS) and Staphylococcus aureus. The aim of the present systematic review was to evaluate the distribution characteristics of specific Staphylococcus spp. in different PJI phases, reveal the effect of pathogens' feature on their distribution and suggest recommendations for antibiotic treatment of Staphylococcal PJI. The present systematic review was performed using PubMed and EMBASE databases with the aim to identify existing literature that presented the spectrum of Staphylococcus spp...
June 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28586174/2-6-difluorobenzamide-inhibitors-of-the-bacterial-cell-division-protein-ftsz-design-synthesis-and-structure-activity-relationship-study
#8
Valentina Straniero, Ermanno Valoti, Carlo Zanotto, Letizia Straniero, Andrea Casiraghi, Stefano Duga, Antonia Radaelli, Carlo de Giuli Morghen
A wide variety of drug-resistant microorganism are continuously emerging, restricting the therapy of common bacterial infections. Originally potent antimicrobial agents are now no longer helpful, due to their weak or null activity towards these antibiotic-resistant bacteria. In addition, none of the recently approved antibiotics affects innovative targets, resulting in a requirement of novel drugs, with innovative antibacterial mechanisms of action. The essential cell division protein FtsZ (Filamentous temperature sensitive Z) emerged as a possible target, thanks to its ubiquitous expression and its homology to eukaryotic -tubulin...
June 6, 2017: ChemMedChem
https://www.readbyqxmd.com/read/28584662/a-rare-case-of-acute-transverse-myelitis-associated-with-staphylococcusaureus-bacteremia-and-osteomyelitis
#9
Stamatis Karakonstantis, Despoina Galani, Sevasti Maragou, Asimina Koulouridi, Dimitra Kalemaki, Charalampos Lydakis
INTRODUCTION: Direct intramedullary infections are considered very rare. Only few reports of Staphylococcus aureus myelitis have been published. CASE PRESENTATION: Our patient, a 79-year-old male, presented with a 2-day history of high-grade fever and high inflammatory markers and progressively developed tetraplegia during hospitalization. Lumbar puncture revealed cerebrospinal fluid pleocytosis and a spinal cord MRI revealed transverse myelitis at the level of C3-C5 and possible osteomyelitis of C5-T1...
2017: Spinal Cord Series and Cases
https://www.readbyqxmd.com/read/28580804/burden-of-antimicrobial-resistance-in-an-era-of-decreasing-susceptibility
#10
Glenn S Tillotson, Stephen H Zinner
Antimicrobial resistance has become a global problem. Many pathogens are becoming multidrug-resistant with the attendant increased risk of failure of standard therapies and the under-recognised outcomes such as increased morbidity, mortality, length of hospitalization and costs of treatment. Areas covered: We undertook a review of the literature using standard search engines including PubMed, Google Scholar, Scopus and internet sources. Key search terms included antimicrobial resistance, antibiotic resistance, bacterial resistance, clinical outcomes, economic consequences, Escherichia coli, Pseudomonas aeruginosa, Klebsiella pneumoniae, Streptococcus pneumoniae and Staphylococcus aureus...
June 13, 2017: Expert Review of Anti-infective Therapy
https://www.readbyqxmd.com/read/28577844/preoperative-staphylococcus-aureus-screening-and-targeted-decolonization-in-cardiac-surgery
#11
Manoj K Saraswat, Jonathan T Magruder, Todd C Crawford, Julia M Gardner, Damon Duquaine, Marc S Sussman, Lisa L Maragakis, Glenn J Whitman
BACKGROUND: We assessed the impact of preoperative Staphylococcus aureus screening and targeted decolonization on the incidence of postoperative methicillin-resistant S aureus (MRSA) colonization, intensive care unit MRSA transmission, and surgical site infections in cardiac surgery patients. METHODS: We reviewed medical records for all adult patients during two periods: preintervention (January 2007 to April 2010) and intervention (January 2011 to December 2014)...
June 1, 2017: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/28577365/prevalence-of-methicillin-resistant-staphylococcus-aureus-in-lumbini-medical-college-and-teaching-hospital-palpa-western-nepal
#12
Shristi Raut, Kishor Bajracharya, Janak Adhikari, Sushama Suresh Pant, Bipin Adhikari
BACKGROUND: Multidrug resistant Staphylococcus aureus is common in both tertiary and primary health care settings. Emergence of methicillin resistance in S. aureus (MRSA) along with macrolide, lincosamide, streptogramin B (MLSB) has made treatment of Staphylococcal infection more challenging. The main objective of this study was to detect MRSA, MLSB (inducible; MLSBi and constitutive; MLSBc) resistant S. aureus using phenotypic methods and to determine their antibiogram. METHODS: Various samples were collected from 1981 patients who attended Lumbini Medical College and Teaching Hospital (LMCTH) during the period of 6 months from September 2015 to February 2016...
June 2, 2017: BMC Research Notes
https://www.readbyqxmd.com/read/28570834/in-vitro-antistaphylococcal-synergistic-effect-of-isoflavone-metabolite-demethyltexasin-with-amoxicillin-and-oxacillin
#13
Johana Rondevaldova, Jana Hummelova, Jan Tauchen, Ladislav Kokoska
Staphylococcal infections are often hard to treat due to increasing resistance, especially to β-lactams. Previous studies described the synergy between common antibiotics and isoflavonoids; however, little is yet known about the combinatory effects of antibiotics with products of human isoflavone metabolism. In this study, demethyltexasin (DT), a human body metabolite of soybean isoflavones, was evaluated for its possible antistaphylococcal combinatory effect with amoxicillin and oxacillin. For comparison, common therapeutically used combination of amoxicillin/clavulanic acid was tested...
June 1, 2017: Microbial Drug Resistance: MDR: Mechanisms, Epidemiology, and Disease
https://www.readbyqxmd.com/read/28549606/variable-performance-of-four-commercial-chromogenic-media-for-detection-of-methicillin-resistant-staphylococcus-aureus-isolates-harbouring-mecc
#14
Céline Dupieux, Camille Kolenda, Anders Rhod Larsen, Bruno Pichon, Mark Holmes, Michèle Bes, Christopher Teale, Elizabeth Dickson, Robert Hill, Robert Skov, Angela Kearns, Frédéric Laurent
In this study, the performances of four methicillin-resistant Staphylococcus aureus (MRSA) chromogenic screening media were compared for detecting mecC-positive MRSA. Using 111 clinical isolates representative of the various mecC-MRSA clones in Europe, chromID(®) MRSA (bioMérieux) and Brilliance(TM) MRSA 2 (Oxoid Ltd.) showed higher sensitivity (99.1% and 97.3%, respectively) than BBL(TM) CHROMagar(®) MRSA II (BD Diagnostics) and MRSASelect(TM) (Bio-Rad) (79.3% and 63.1%, respectively) (P < 0.0001). These findings have important implications for effective public health diagnostics and epidemiological surveillance of MRSA...
May 23, 2017: International Journal of Antimicrobial Agents
https://www.readbyqxmd.com/read/28526569/total-joint-replacement-for-neglected-posterior-knee-dislocation-following-septic-arthritis-after-arthroscopy
#15
Yusuf Öztürkmen, Yunus Emre Akman, Ethem Ayhan Ünkar, Erhan Şükür
This report presents the first case of a knee dislocation following septic arthritis after arthroscopy. A 65-year-old woman had an arthroscopy with irrigation and debridement (I&D) of the joint and microfracture for the chondral lesions. She had complaints of postarthroscopic infection but non-steroidal anti-inflammatory medication and local ice compression was recommended. She revisited her physician twice and at the last visit she had a large purulent effusion in her knee. The gram stain of the joint fluid aspirate demonstrated gram-positive cocci and the cultures grew methicilline-sensitive Staphylococcus aureus...
May 16, 2017: Acta Orthopaedica et Traumatologica Turcica
https://www.readbyqxmd.com/read/28495771/complete-genome-sequence-of-the-disinfectant-susceptibility-testing-reference-strain-staphylococcus-aureus-subsp-aureus-atcc-6538
#16
Olga Makarova, Paul Johnston, Birgit Walther, Jens Rolff, Uwe Roesler
We report here the complete genome sequence of the methicillin-sensitive Staphylococcus aureus subsp. aureus strain ATCC 6538 (FDA 209, DSM 799, WDCM 00032, and NCTC 10788).
May 11, 2017: Genome Announcements
https://www.readbyqxmd.com/read/28495466/methicillin-resistant-staphylococcus-aureus-screening-pcr-adapted-to-locally-emerging-variants-evaluation-of-novel-sccmec-primers
#17
Miriam Herma, Sabine Petersdorf, Birgit Henrich
Infections with multi-resistant bacteria, such as Methicillin-resistant Staphylococcus aureus (MRSA), represent a world-wide health-care problem. The original MRSA Screening TaqMan PCR was based on the detection of the SCCmec-orfX-junction as described by the group of Huletsky in 2004. In the recent years, this assay increasingly failed to detect new MRSA variants in swab specimens. In this work, we analyzed the usefulness of 17 additional SCCmec primers to increase PCR sensitivity by testing 290 collected samples with negative PCR results and positive MRSA culture in a retrospective analysis, and 380 samples of the daily routine diagnostics...
June 2017: International Journal of Medical Microbiology: IJMM
https://www.readbyqxmd.com/read/28492640/impedimetric-measurement-of-dna-dna-hybridisation-using-microelectrodes-with-different-radii-for-detection-of-methicillin-resistant-staphylococcus-aureus-mrsa
#18
Poh Quan Li, Andrew Piper, Ilka Schmueser, Andrew R Mount, Damion K Corrigan
Due to their electroanalytical advantages, microelectrodes are a very attractive technology for sensing and monitoring applications. One highly important application is measurement of DNA hybridisation to detect a wide range of clinically important phenomena, including single nucleotide polymorphisms (SNPs), mutations and drug resistance genes. The use of electrochemical impedance spectroscopy (EIS) for measurement of DNA hybridisation is well established for large electrodes but as yet remains relatively unexplored for microelectrodes due to difficulties associated with electrode functionalisation and impedimetric response interpretation...
May 11, 2017: Analyst
https://www.readbyqxmd.com/read/28492017/ecthyma-gangrenosum-secondary-to-methicillin-sensitive-staphylococcus-aureus
#19
Jurate Ivanaviciene, Lisa Chirch, Jane M Grant-Kels, Philip E Kerr, Justin Finch
Ecthyma gangrenosum (EG) is a well-described skin manifestation of Pseudomonas aeruginosa septicemia in immunocompromised patients. However, it can be seen in association with other bacteria, viruses, and fungi. We report a case of a 54-year-old African American female with metastatic gastric adenocarcinoma and recent chemotherapy and neutropenia who developed EG-like lesions due to methicillin-susceptible Staphylococcus aureus. We also review the literature to evaluate all reported cases of S aureus-associated EG and their clinical presentation, diagnosis, and treatment...
September 2016: International Journal of Women's Dermatology
https://www.readbyqxmd.com/read/28488306/physician-initiated-first-in-human-clinical-study-using-a-novel-angiogenic-peptide-ag30-5c-for-patients-with-severe-limb-ulcers
#20
Hironori Nakagami, Toshifumi Yamaoka, Misa Hayashi, Atsushi Tanemura, Yasushi Takeya, Hitomi Kurinami, Ken Sugimoto, Ayumi Nakamura, Kazunori Tomono, Katsuto Tamai, Ichiro Katayama, Hiromi Rakugi, Yasufumi Kaneda
AIM: In patients with diabetes or ischemia, angiogenesis and infection control are required for chronic leg ulcers, which substantially impair patients' quality of life. We developed a novel functional peptide, named AG30/5C, with angiogenic and anti-microbial properties. Treatment with AG30/5C significantly accelerated the wound healing of full-thickness defects in mice. To evaluate the safety of AG30/5C in the treatment of leg ulcers, a physician-initiated clinical study was carried out...
May 10, 2017: Geriatrics & Gerontology International
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