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https://www.readbyqxmd.com/read/29114643/analytical-evaluation-of-a-vancomycin-immunoassay-in-synovial-fluid
#1
REVIEW
Francesca Luceri, Fiamma Balboni, Giovanni Balato, Paola Pezzati, Nicoletta Cini, Gianni Virgili, Andrea Baldini
In clinical laboratories performing routine activities, the need to answer the burning clinical question in emerging field may be limited by lack of technology support or assays accessibility. Commercially available methods, although originally validated for specific biological matrices, may be employed for other matrices, following appropriate guidelines such as Clinical and Laboratory Standards Institute (CLSI) EP 19. We investigated the use of a vancomycin assay with synovial fluid samples, in view of a possible employment in vancomycin release study...
June 2017: Joints
https://www.readbyqxmd.com/read/29109168/risk-factors-and-outcomes-for-ineffective-empiric-treatment-in-gram-negative-sepsis-stratification-by-onset-of-infection
#2
Scott T Micek, Nicholas Hampton, Marin Kollef
Sepsis and septic shock remain serious infections with reported mortality rates in excess of forty percent. Timely antibiotic therapy in sepsis and septic shock is recognized as an important determinant of outcome. However, the administration of ineffective empiric treatment (IET) (an initial antibiotic regimen that is not active against the identified pathogen(s) based on in vitro susceptibility testing) is associated with excess mortality compared to effective empiric treatment (EET). We examined all hospitalized patients between January 2010 and October 2015 at Barnes-Jewish Hospital with the presence of a sterile site (blood, or pleural, abdominal, cerebrospinal, synovial, and pericardial fluid) culture positive for Gram-negative (GN) bacteria combined with primary or secondary ICD-9-CM codes for severe sepsis (995...
November 6, 2017: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/29091212/penetration-of-linezolid-into-synovial-fluid-and-muscle-tissue-after-elective-arthroscopy
#3
R Schwameis, S Syré, K Sarahrudi, A Appelt, D Marhofer, D Burau, C Kloft, M Zeitlinger
Objectives: Penetration of antibiotics into synovial fluid is crucial to combat septic arthritis efficiently. Since linezolid may be used for treatment of septic arthritis when methicillin-resistant bacterial strains are suspected, we investigated its target-site concentrations in synovial fluid. Patients and methods: Ten patients undergoing elective knee arthroscopy were included in this study. Subjects received a single dose of 600 mg of linezolid intravenously and linezolid concentrations were measured in plasma and by using microdialysis in muscle tissue and synovial fluid...
October 1, 2017: Journal of Antimicrobial Chemotherapy
https://www.readbyqxmd.com/read/28926460/peripheral-bacterial-septic-arthritis-review-of-diagnosis-and-management
#4
Ahmed S Hassan, Allison Rao, Augustine M Manadan, Joel A Block
Septic arthritis refers to an infection in a joint due to a bacterial, mycobacterial, or fungal cause. Joint infections are a serious cause of morbidity and mortality and constitute a true musculoskeletal emergency. The estimated incidence of septic arthritis in the general population is between 2 and 6 cases per 100,000 people per year. The most common presentation is an acute monoarthritis. Identification of organisms in the synovial fluid is the criterion standard for diagnosis. Synovial fluid aspiration should be performed prior to initiating antibiotics...
September 19, 2017: Journal of Clinical Rheumatology: Practical Reports on Rheumatic & Musculoskeletal Diseases
https://www.readbyqxmd.com/read/28918656/diagnosing-kingella-kingae-infections-in-infants-and-young-children
#5
Pablo Yagupsky
Kingella kingae is currently recognized as the prime etiology of skeletal system infections in children aged 6-48 months. The organism is notoriously fastidious, its growth is inhibited by synovial fluid and bone exudates, and its presence in clinical specimens is commonly missed by traditional culture methods. Areas covered: The present review discusses the use of improved laboratory methods to detect the organism in normally sterile body fluids, exudates, and upper respiratory tract specimens. Expert commentary: While inoculation of joint and bone exudates into blood culture vials dilutes the concentration of detrimental factors and significantly improves the isolation of the organism, novel PCR-based assays have enhanced sensitivity, shortened the time-to-detection of K...
October 2017: Expert Review of Anti-infective Therapy
https://www.readbyqxmd.com/read/28882472/overwhelming-streptococcus-pyogenes-sepsis-in-an-elderly-patient-with-septic-arthritis
#6
Aarti Chadha, Wafaa Jamal, Abdul Raouf Abdul Aziz, Vincent O Rotimi
INTRODUCTION: The signs of Streptococcus pyogenes, group A streptococci (GAS) bacteremia are non-specific and patients can have wide presentations ranging from flu-like symptoms to life-threatening toxic-shock syndrome in just a few hours. CASE PRESENTATION: We report a case of fulminant S. pyogenes sepsis in an elderly woman with septic arthritis and remarkable past medical history/risk factors. She was febrile, hypotensive and had a swollen and tender right knee...
September 4, 2017: Journal of Infection and Public Health
https://www.readbyqxmd.com/read/28875126/postoperative-deep-shoulder-infections-following-rotator-cuff-repair
#7
REVIEW
Kivanc Atesok, Peter MacDonald, Jeff Leiter, Sheila McRae, Greg Stranges, Jason Old
Rotator cuff repair (RCR) is one of the most commonly performed surgical procedures in orthopaedic surgery. The reported incidence of deep soft-tissue infections after RCR ranges between 0.3% and 1.9%. Deep shoulder infection after RCR appears uncommon, but the actual incidence may be higher as many cases may go unreported. Clinical presentation may include increasing shoulder pain and stiffness, high temperature, local erythema, swelling, warmth, and fibrinous exudate. Generalized fatigue and signs of sepsis may be present in severe cases...
August 18, 2017: World Journal of Orthopedics
https://www.readbyqxmd.com/read/28851726/disseminated-pseudomonas-aeruginosa-sepsis-as-presenting-diagnosis-of-x-linked-agammaglobulinaemia-in-a-previously-well-16-month-old-child
#8
Naveen Kumar Bhardwaj, Daisy Khera, Neeraj Gupta, Kuldeep Singh
We report a previously healthy 16-month-old child who presented to us with membranous pharyngitis and ecthyma gangrenosum. In this patient, Pseudomonas aeruginosa was isolated from throat swab, cerebrospinal fluid, skin swab, urine, blood and synovial fluid in a single admission. In further workup, this child was diagnosed as a case of X-linked agammaglobulinaemia. The child was treated successfully with antipseudomonal antibiotics for 6 weeks and intravenous immunoglobulin.
August 29, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28771839/effect-of-arthroscopic-lavage-and-repeated-intra-articular-administrations-of-antibiotic-in-adult-horses-and-foals-with-septic-arthritis
#9
Matthieu Cousty, John David Stack, Cyril Tricaud, Florent David
OBJECTIVE: To evaluate the effect of arthroscopic lavage and repeated intra-articular administration of antibiotic in adult horses and foals with septic arthritis. STUDY DESIGN: Retrospective clinical study. ANIMALS: Adult horses and foals with septic arthritis (n = 62). METHODS: Age, sex, cause of septic synovitis, joint involved, hospitalization time, and outcome were recorded. Arthroscopic lavage was performed at day 0 (D 0)...
August 3, 2017: Veterinary Surgery: VS
https://www.readbyqxmd.com/read/28750797/reliability-of-a-multiplex-pcr-system-for-diagnosis-of-early-and-late-prosthetic-joint-infections-before-and-after-broth-enrichment
#10
Francesca Villa, Marco Toscano, Elena De Vecchi, Monica Bortolin, Lorenzo Drago
Early microbiological diagnosis of prosthetic joint infection (PJI) is essential for successful antimicrobial treatment; however, culture has limited sensitivity, particularly in patients who had received antibiotic therapy, and the utility of molecular methods for diagnosing PJIs remains debated. We investigated the reliability of a multiplex PCR system for the microbiological diagnosis of early and late PJIs. Samples of periprosthetic tissues, synovial fluid, and prosthetic implants from 47 patients with early (n=13) or late (n=34) PJI were analyzed by conventional culture and with the multiplex-PCR Unyvero ITI(®) (U-ITI) cartridge system...
September 2017: International Journal of Medical Microbiology: IJMM
https://www.readbyqxmd.com/read/28674590/-proteus-mirabilis-septic-arthritis
#11
REVIEW
Mohammed Sbiti, Bahia Bouhamidi, Lhoussaine Louzi
Acute septic arthritis is rare. It is associated with poor prognosis in terms of mortality and morbidity. We report the case of a 61-year old patient with spontaneous Proteus mirabilis septic arthritis. He suffered from complicated diabetes associated with positive blood cultures and synovial fluid cultures. Patient's evolution was favorable thanks to early diagnosis and initiation of adequate antibiotic therapy. Proteus mirabilis septic arthritis is rare. On that basis we conducted a literature review of cases of Proteus mirabilis pyogenic arthritis to highlight the risk factors, pathogenesis, treatment and evolution of these diseases...
2017: Pan African Medical Journal
https://www.readbyqxmd.com/read/28666043/difficult-to-detect-low-grade-infections-responsible-for-poor-outcomes-in-total-knee-arthroplasty
#12
Luis Grau, Meredith Alane Gunder, Michaela Schneiderbauer
In this article, we present the case of a patient with a stiff, painful knee after total knee arthroplasty, and with erythrocyte sedimentation rate, C-reactive protein level, and synovial fluid analysis within normal limits. Open biopsy for cultures showed Propionibacterium acnes prosthetic joint infection, which was successfully treated with 2-stage revision and intravenous antibiotics.
May 2017: American Journal of Orthopedics
https://www.readbyqxmd.com/read/28559002/assessment-of-the-automated-multiplex-pcr-unyvero-i60-iti-%C3%A2-cartridge-system-to-diagnose-prosthetic-joint-infection-a-multicentre-study
#13
D Malandain, P Bémer, A G Leroy, J Léger, C Plouzeau, A S Valentin, A Jolivet-Gougeon, D Tandé, G Héry-Arnaud, C Lemarié, M Kempf, L Bret, C Burucoa, S Corvec
OBJECTIVES: Prosthetic joint infections (PJI) are responsible for significant morbidity and mortality and their number continues to rise. Their management remains complex, especially the microbiological diagnosis. Besides 'homemade' tests developed by several teams, new molecular biology methods are now available with different analytical performance and usability. METHODS: We studied the performances of one of these tests: ITI(®) multiplex PCR (mPCR) by the Curetis(®) company and compared it to either 'optimized' culture or 16S rRNA PCR...
May 27, 2017: Clinical Microbiology and Infection
https://www.readbyqxmd.com/read/28461319/bacteriophage-lysin-cf-301-a-potent-antistaphylococcal-biofilm-agent
#14
Raymond Schuch, Babar K Khan, Assaf Raz, Jimmy A Rotolo, Michael Wittekind
Biofilms pose a unique therapeutic challenge because of the antibiotic tolerance of constituent bacteria. Treatments for biofilm-based infections represent a major unmet medical need, requiring novel agents to eradicate mature biofilms. Our objective was to evaluate bacteriophage lysin CF-301 as a new agent to target Staphylococcus aureus biofilms. We used minimum biofilm-eradicating concentration (MBEC) assays on 95 S. aureus strains to obtain a 90% MBEC (MBEC90) value of ≤0.25 μg/ml for CF-301. Mature biofilms of coagulase-negative staphylococci, Streptococcus pyogenes, and Streptococcus agalactiae were also sensitive to disruption, with MBEC90 values ranging from 0...
July 2017: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/28383628/interferon-%C3%AE-induced-protein-10-in-lyme-disease
#15
REVIEW
P Fallahi, G Elia, A Bonatti
Lyme disease is an infectious disease caused by bacteria of the Borrelia type, that affects about 300,000 people a year in the USA and 65,000 people a year in Europe. Borrelia infection, and Lyme disease, following occupational exposure has been frequently reported in USA, Europe and Asia. The manifestations of Lyme disease include erythema migrans (EM), arthritis, neuroborrelliosis (NB), and others. Cytokines and chemokines primarily orchestrate leukocyte recruitment to the areas of Borrelia infection, and they are critical mediators of immune and inflammatory responses, in particular of the induction of interferon (IFN)-γ and IFN-γ dependent chemokines...
March 2017: La Clinica Terapeutica
https://www.readbyqxmd.com/read/28360506/current-trends-of-microorganisms-and-their-sensitivity-pattern-in-paediatric-septic-arthritis-a-prospective-study-from-tertiary-care-level-hospital
#16
Girish Motwani, Rujuta Mehta, Alaric Aroojis, Sandeep Vaidya
PURPOSE: Early treatment of septic arthritis is essential before irreversible damage to the articular cartilage occurs. Clinicians often start empirical antibiotic therapy for symptomatic relief while awaiting a definitive culture report. In present day parlance with variations in different centres in the private and public sector and rampant antibiotic abuse, a lot of resistance is being seen in the flora and their sensitivity patterns. Hence it is imperative to document and analyze these changing trends...
January 2017: Journal of Clinical Orthopaedics and Trauma
https://www.readbyqxmd.com/read/28290115/sonication-of-arthroplasty-implants-improves-accuracy-of-periprosthetic-joint-infection-cultures
#17
REVIEW
Adam C Rothenberg, Alan E Wilson, John P Hayes, Michael J O'Malley, Brian A Klatt
BACKGROUND: There is evidence that sonication of explanted prosthetic hip and knee arthroplasty components with culture of the sonication fluid may enhance diagnostic sensitivity. Previous studies on the use of implant sonicate cultures have evaluated diagnostic thresholds but did not elaborate on the clinical importance of positive implant sonicate cultures in the setting of presumed aseptic revisions and did not utilize consensus statements on periprosthetic joint infection (PJI) diagnosis when defining their gold standard for infection...
July 2017: Clinical Orthopaedics and related Research
https://www.readbyqxmd.com/read/28274250/prosthetic-joint-infection-development-of-an-evidence-based-diagnostic-algorithm
#18
Heinrich M L Mühlhofer, Florian Pohlig, Karl-Georg Kanz, Ulrich Lenze, Florian Lenze, Andreas Toepfer, Sarah Kelch, Norbert Harrasser, Rüdiger von Eisenhart-Rothe, Johannes Schauwecker
BACKGROUND: Increasing rates of prosthetic joint infection (PJI) have presented challenges for general practitioners, orthopedic surgeons and the health care system in the recent years. The diagnosis of PJI is complex; multiple diagnostic tools are used in the attempt to correctly diagnose PJI. Evidence-based algorithms can help to identify PJI using standardized diagnostic steps. METHODS: We reviewed relevant publications between 1990 and 2015 using a systematic literature search in MEDLINE and PUBMED...
March 9, 2017: European Journal of Medical Research
https://www.readbyqxmd.com/read/28259167/diagnostic-accuracy-of-arthroscopic-biopsy-in-periprosthetic-infections-of-the-hip
#19
Florian Pohlig, Heinrich M L Mühlhofer, Ulrich Lenze, Florian W Lenze, Christian Suren, Norbert Harrasser, Rüdiger von Eisenhart-Rothe, Johannes Schauwecker
BACKGROUND: Diagnosis of a low-grade periprosthetic joint infection (PJI) prior to revision surgery can be challenging, despite paramount importance for further treatment. Arthroscopic biopsy of synovial and periprosthetic tissue with subsequent microbiological and histological examination can be beneficial but its specific diagnostic value has not been clearly defined. METHODS: 20 consecutive patients who underwent percutaneous synovial fluid aspiration as well as arthroscopic biopsy due to suspected PJI of the hip and subsequent one- or two-stage revision surgery at our institution between January 2012 and May 2015 were enrolled...
March 4, 2017: European Journal of Medical Research
https://www.readbyqxmd.com/read/28187026/an-algorithmic-approach-to-the-suspected-septic-wrist
#20
Jeffrey R Claiborne, Leslie G Branch, Michael Reynolds, Anthony J Defranzo
An acutely painful, erythematous wrist can be due to a variety of pathologic processes, including crystalline arthropathy, infection, trauma, osteoarthritis, and systemic disease. The broad differential diagnosis of the inflamed wrist and nonspecific clinical findings make accurate diagnosis challenging. There is no published clinical or laboratory criterion that reliably differentiates septic wrist arthritis from a sterile inflammatory arthropathy. For septic joint patients, long-term results are notably poorer in patients with a delay in treatment, therefore establishing evidenced-based guidelines deserves attention...
June 2017: Annals of Plastic Surgery
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