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Registros recuperados: 9
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Antimicrobial activity of linezolid against Gram-positive cocci isolated in Brazil BJID
Sader,Helio S.; Gales,Ana C.; Jones,Ronald N..
The new oxazolidinone linezolid and other antimicrobial agents used to treat Gram-positive infections were tested against 1,585 Gram-positive cocci; 1,260 staphylococci and enterococci isolates from patients hospitalized in Brazilian hospitals, and 325 S. pneumoniae isolates for patients with community acquired infections. Susceptibility testing was performed using broth microdilution according to NCCLS procedures. Linezolid was the most active compound and the only drug that inhibited 100% of the isolates at the susceptible breakpoint (< 4 mg/mL). Resistance to vancomycin was very rare (99.9% susceptibility), and both quinupristin/dalfopristin and gatifloxacin were active against approximately 90% of the strains evaluated. All other compounds inhibited...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Gram-positive cocci; Oxazolidinones; Antimicrobial resistance; Linezolid; Vancomycin resistance; Nosocomial infections.
Ano: 2001 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702001000400002
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Cost-effectiveness of linezolid versus vancomycin in mechanical ventilation-associated nosocomial pneumonia caused by methicillin-resistant staphylococcus aureus BJID
Machado,Adão R. L.; Arns,Clovis da Cunha; Follador,Wilson; Guerra,Aline.
Linezolid, an oxazolidinone-class antimicrobial agent, is a new drug; its use has frequently been questioned due to its high price. However, recent trials have demonstrated that the use of linezolid in mechanical ventilation-associated nosocomial pneumonia caused by methicillin-resistant Staphylococcus aureus (VAP-MRSA) may be justified due to its improved efficacy compared to vancomycin. Price and cost have different magnitudes, and clinical efficacy should always be considered in the decision-making process. Our objective was to determine whether linezolid treatment was more cost-effective than vancomycin for treating VAP-MRSA. METHODOLOGY: Elaboration of an economic model from a metanalysis of previous clinical trials comparing both drugs, through a...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Linezolid; Vancomycin; Staphylococcus aureus; Pneumonia; Ventilator; Cost; Pharmacoeconomic.
Ano: 2005 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702005000300001
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In vitro antimicrobial activity of linezolid tested against vancomycin-resistant enterococci isolated in Brazilian hospitals BJID
Reis,Adriana O.; Cordeiro,Julio C. R.; Machado,Antonia M.O.; Sader,Helio S..
The emergence of vancomycin-resistant enterococci (VRE) has been described recently in Brazil. This is in contrast to the USA and Europe, where the VRE appeared in the late 1980s. The progressive increase in VRE isolation poses important problems in the antimicrobial therapy of nosocomial infections. Treatment options and effective antimicrobial agents for VRE are often limited and the possibility of transfer of vancomycin genes to other Gram-positive microorganisms continues. In the search for antimicrobial agents for multiresistant Gram-positive cocci, compounds such as linezolid and quinupristin/dalfopristin have been evaluated. The present study was conducted to evaluate the in vitro activity of the oxazolidinone linezolid and 10 other antimicrobial...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Linezolid; Vancomycin-resistant enterococci; Quinupristin/dalfopristin-resistant Enterococcus faecium; Clonal dissemination; Nosocomial infection.
Ano: 2001 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702001000500002
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In vitro susceptibility of methicillin-resistant Staphylococcus aureus isolates from skin and soft tissue infections to vancomycin, daptomycin, linezolid and tedizolid BJID
Múnera,Johanna Marcela Vanegas; Ríos,Ana María Ocampo; Urrego,Daniela Montoya; Jiménez Quiceno,Judy Natalia.
Abstract Introduction Treatment of multidrug-resistant Gram-positive infections caused by Staphylococcus aureus remains as a clinical challenge due to emergence of new resistance mechanisms. Tedizolid is a next-generation oxazolidinone, recently approved for skin and soft tissues infections. We conducted a study to determine in vitro susceptibility to vancomycin, daptomycin, linezolid and tedizolid in MRSA clinical isolates from adult patients with skin and soft tissue infections. Material and methods Methicillin-resistant S. aureus isolates were collected in three tertiary-care hospitals of Medellin, Colombia, from February 2008 to June 2010 as part of a previous study. Clinical characteristics were assessed by medical records and MIC values were...
Tipo: Info:eu-repo/semantics/article Palavras-chave: MRSA; Skin and soft tissues infections; Tedizolid; Linezolid; Vancomycin; Daptomycin.
Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702017000500493
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In vitro susceptibility to methicillin, vancomycin and linezolid of staphylococci isolated from bloodstream infections in eastern Turkey BJM
Tekin,Alicem; Dal,Tuba; Deveci,Özcan; Tekin,Recep; Özcan,Nida; Atmaca,Selahattin; Dayan,Saim.
Staphylococcus species are one of the major causes of bacterial bloodstream infections. Multi-resistant staphylococci infections are major therapeutic problems. This study was aimed to detect methicillin, linezolid and vancomycin susceptibilities of Staphylococcus isolates. A total of 870 Staphylococcus strains isolated from blood cultures of hospitalized patients with BSI. Antimicrobial susceptibilities of methicillin, linezolid and vancomycin were detected according to the Clinical and Laboratory Standards Institute (CLSI). A total of 771 (88.6%) isolates were coagulase-negative staphylococci (CoNS). 700 (80.5%) isolates were methicillin-resistant (MR) and 170 (19.5%) were methicillin-susceptible (MS). All the MS isolates were also susceptible to...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Staphylococcus; Methicillin; Linezolid; Vancomycin.
Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822014000300010
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Increasing pathomorphism of pulmonary tuberculosis: an observational study of slow clinical, microbiological and imaging response of lung tuberculosis to specific treatment. Which role for linezolid? BJID
Manfredi,Roberto; Nanetti,Anna; Monte,Paola Dal; Calza,Leonardo.
During recent years, a progressive emerging of tuberculosis occurred, related to the overall increased age of general population, primary and secondary (iatrogenic) immunodeficiencies, the availability of invasive procedures, surgical interventions and intensive care supports, bone marrow and solid organ transplantation, and especially the recent immigration flows of people often coming from areas endemic for tuberculosis, and living with evident social-economical disadvantages, and with a reduced access to health care facilities. Since January 2006, at our reference centre we followed 81 consecutive cases of pulmonary tuberculosis, with 65 of them which remained evaluable for the absence of extrapulmonary complications, and a continuative and effective...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Pulmonary tuberculosis; Microbiological assessment; Radiological assessment; Clinical-therapeutic issues; Selected antimicrobial treatments; Controlled observational study; Linezolid.
Ano: 2009 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702009000400012
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Multicenter assessment of the linezolid spectrum and activity using the disk diffusion and Etest methods: report of the Zyvox® Antimicrobial Potency Study in Latin America (LA-ZAPS) BJID
Ballow,Charles H.; Biedenbach,Douglas J.; Rossi,Flavia; Jones,Ronald N..
Linezolid was the first clinically applied member of the new antimicrobial class called the "oxazolidinones". These agents have a powerful spectrum of activity focussed against Gram-positive organisms including strains with documented resistances to other antimicrobial classes. We conducted a multicenter surveillance (Zyvox Antimicrobial Potency Study; ZAPS) trial of qualifying Gram-positive isolates from 24 medical centers in eight countries in Latin America. The activity and spectrum of linezolid was compared to numerous agents including glycopeptides, quinupristin/dalfopristin, b-lactams and fluoroquinolones when testing 2,640 strains by the standardized disk diffusion method or Etest (AB BIODISK, Solna, Sweden). The linezolid spectrum was complete...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Linezolid; Oxazolidinones; Antimicrobial surveillance; Resistant Gram-positive cocci; ZAPS.
Ano: 2002 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702002000300001
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Prevalence of phenotypic resistance of Staphylococcus aureus isolates to macrolide, lincosamide, streptogramin B, ketolid and linezolid antibiotics in Turkey BJID
Adaleti,Riza; Nakipoglu,Yasar; Ceran,Nurgul; Tasdemir,Cihan; Kaya,Fatma; Tasdemir,Semiha.
The incidence of drug-resistant pathogens differs greatly between countries according to differences in the usage of antibiotics. The purpose of this study was to investigate the phenotypic resistance of 321 methicillin resistance Staphylococcus aureus (MRSA) and 195 methicillin susceptible S. aureus (MSSA) in a total of 516 S. aureus strains to macrolide, lincosamide, streptogramin B (MLS B), ketolid, and linezolid. Disk diffusion method was applied to determine MLS B phenotype and susceptibility to different antibiotic agents. It was found that 54.6% of the isolates were resistant to erythromycin (ERSA), 48% to clindamycin, 55% to azithromycin, 58.7% to spiramycin, 34.7% to telithromycin, and 0.4% to quinupristin-dalfopristin, respectively. No strain...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Staphylococcus aureus; Macrolide; Lincosamide; Streptogramin B; Ketolid; Linezolid; MLS B.
Ano: 2010 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702010000100003
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Successful treatment of pulmonary Nocardia farcinica infection with linezolid: case report and literature review BJID
Shen,Tian; Wu,Lihua; Geng,Lei; Wei,Zeqing; Zheng,Shusen.
Nocardia infection is rare but potentially fatal. Therapy of Nocardia infection remains difficult. Linezolid, a novel oxazolidinone antibiotic, has proven to be effective, but clinical data are limited. Here we describe a case of a 45-year-old man with pulmonary N. farcinica infection following a liver transplantation. The initial therapy was trimethoprim-sulfamethoxazole, which showed no effect. According to susceptibility test, linezolid was administered with clearly improving the patient's condition. The treatment was stopped for anemia as drug related adverse event, and the therapy lasted for as long as 5 months. At the end of treatment clinical cure was confirmed and anemia reversed after discontinuation of linezolid. We also analyzed the clinical...
Tipo: Info:eu-repo/semantics/report Palavras-chave: Nocardia; Linezolid; Drug therapy; Transplantation.
Ano: 2011 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702011000500014
Registros recuperados: 9
Primeira ... 1 ... Última
 

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