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Registros recuperados: 7
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Evaluation of different methods for detecting methicillin resistance in Staphylococcus aureus isolates in a university hospital located in the Northeast of Brazil BJM
Sousa Júnior,Francisco Canindé de; Néri,Gildelane da Silva; Silva,Ana Karine; Araújo,Bibiana Priscila Rodrigues Câmara de; Guerra,Myrian Júlia de Paiva Dourado; Fernandes,Maria José de Britto Costa; Milan,Eveline Pipolo; Melo,Maria Celeste Nunes de.
Many methods have been described for the detection of methicillin-resistant Staphylococcus aureus (MRSA), but the heterogeneous expression of methicillin resistance affects the reliability of these methods. The aim of the present study was to evaluate some methods for detecting methicillin resistance in Staphylococcus aureus isolates in a university hospital located in the Northeast of Brazil. Among the isolates, 15 were methicillin-susceptible and 45 were methicillin-resistant, including low-level heterogeneous resistance strains. Both the 30 µg-cefoxitin disk and PBP2a test had 100% sensibility/specificity and appear to be good options for the detection of MRSA in the clinical laboratory.
Tipo: Info:eu-repo/semantics/article Palavras-chave: MRSA; Methicillin resistance; Heterogeneous resistance; Cefoxitin; PBP2a.
Ano: 2010 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822010000200009
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High frequency of colonization and absence of identifiable risk factors for methicillin-resistant Staphylococcus aureus (MRSA) in intensive care units in Brazil BJID
Korn,Gustavo P.; Martino,Marinês D. V.; Mimica,Igor M.; Mimica,Lycia J.; Chiavone,Paulo A.; Musolino,Luiz R. de S..
Colonization of hospitalized patients with methicillin-resistant Staphylococcus aureus (MRSA) is of increasing concern. To evaluate this problem in Intensive Care Units (ICUs) in Brazil, we studied 100 patients admitted to two ICUs from April to June, 1997. Of the 100 patients, 70 were male, 53 were age 60 years or older, 55 were previously hospitalized, 78 were transferred to the ICU from other hospital units, 49 had received antibiotic therapy, and 66 had undergone recent surgery. Nasal and axillary swab cultures were obtained on admission and every 48 hours thereafter until discharge. MRSA were identified by plating any cultured S. aureus on Mueller-Hinton agar containing 6mug/ml of oxacillin. At the time of admission, 46 (46%) of the patients were...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Staphylococcus aureus; Methicillin resistance; Hospital infections.
Ano: 2001 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702001000100001
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Methicillin-resistant and methicillin-susceptible community-acquired Staphylococcus aureus infection among children BJID
Gomes,Renata Tavares; Lyra,Ticiana Goyanna; Alves,Noraney Nunes; Caldas,Renilza Menezes; Barberino,Maria-Goreth; Nascimento-Carvalho,Cristiana Maria.
Methicillin-resistant Staphylococcus aureus has emerged as a pathogen associated with community-acquired infections worldwide. We report the spectrum of community-acquired S. aureus infections and compare the patients infected with methicillin-susceptible or methicillin-resistant strains among patients aged <20 years. Overall, 90 cases of community acquired S. aureus were detected in an 11-year period. Clinical and microbiological data were registered. Fifty-nine (66%) patients were male and the median age was two years. The majority (87%) of the patients were hospitalized and chronic underlying illnesses were detected in 27 (30%) cases. Overall, 34 (37.8%) patients had skin/soft tissue infections and 56 (62.2%) patients had deep-seated infection. Four...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Antibacterial agents; Community-acquired infection; Methicillin resistance; Staphylococcal infections; Staphylococcus aureus antimicrobial; Resistance.
Ano: 2013 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702013000500010
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Methicillin-resistant Staphylococcus lugdunensis carrying SCCmec type V misidentified as MRSA BJID
Pereira,Eliezer Menezes; Schuenck,Ricardo Pinto; Nouér,Simone Aranha; Santos,Kátia Regina Netto dos.
Staphylococcus lugdunensis is a rare cause of severe infections and clinical manifestations are similar to those related to S. aureus infection. We describe a hospital-acquired bacteremia due to methicillin-resistant Staphylococcus lugdunensis, misidentified as methicillin-resistant S. aureus. The oxacillin MIC was 16 µg/mL and the mecA gene and SCCmec type V were determined by PCR. Although treatment had been appropriated, the patient died after rapid progressive respiratory failure and another nosocomial sepsis. It is important not only to identify S. lugdunensis in view of its clinical course, but also to determine its susceptibility to oxacillin by detecting the mecA gene or its product.
Tipo: Info:eu-repo/semantics/report Palavras-chave: Staphylococcus; Methicillin resistance; Bacteremia.
Ano: 2011 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702011000300020
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Methicillin-resistant Staphylococcus sp. colonizing health care workers of a cancer hospital BJM
Costa,Dayane de Melo; Kipnis,André; Leão-Vasconcelos,Lara Stefânia Netto de Oliveira; Rocha-Vilefort,Larissa Oliveira; Telles,Sheila Araújo; André,Maria Cláudia Dantas Porfírio Borges; Tipple,Anaclara Ferreira Veiga; Lima,Ana Beatriz Mori; Ribeiro,Nádia Ferreira Gonçalves; Pereira,Mayara Regina; Prado-Palos,Marinésia Aparecida.
The aim of the study was to analyze epidemiological and microbiological aspects of oral colonization by methicillin-resistant Staphylococcus of health care workers in a cancer hospital. Interview and saliva sampling were performed with 149 health care workers. Antimicrobial resistance was determined by disk diffusion and minimum inhibitory concentration. Polymerase Chain Reaction, Internal Transcribed Spacer-Polymerase Chain Reaction and Pulsed Field Gel Electrophoresis were performed for genotypic characterization of methicillin-resistant Staphylococcus. Risk factors were determined by logistic regression. Methicillin-resistant Staphylococcus colonization prevalence was 19.5%, denture wearing (p = 0.03), habit of nail biting (p = 0.04) and preparation and...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Health personnel; Occupational health; Staphylococcus; Methicillin resistance; Oncology service; Hospital.
Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822014000300006
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Molecular identification and antimicrobial susceptibility of Staphylococcus aureus nasal isolates from medical students in Cartagena, Colombia BJID
Bettin,Alfonso; Causil,Ceyla; Reyes,Niradiz.
Staphylococcus aureus (SA) remains a major cause of nosocomial and community-acquired infections worldwide. Nasal carriage of this bacterium among hospital personnel constitutes an important source for nosocomial infections. A cross-sectional study enrolling the whole medical student population (n = 387) of the School of Medicine at the Universidad de Cartagena, Colombia, was conducted to evaluate the carriage rates of both methicillin sensitive-and methicillin resistant-SA, the frequency of Panton-Valentine leukocidin genes in the isolates, and risk factors associated with carriage in this selected population. After signing an informed consent, participants completed a survey related to possible risk factors for colonization, and nasal swabs were...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Carrier state; Staphylococcus aureus; Methicillin resistance; Panton-Valentine leukocidin.
Ano: 2012 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702012000400003
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Molecular techniques for MRSA typing: current issues and perspectives BJID
Trindade,P. A.; McCulloch,J. A.; Oliveira,G. A.; Mamizuka,E. M..
Staphylococcus aureus has long been recognised as an important pathogen in human disease. Serious staphylococcal infections can frequently occur in inpatients and may lead to dire consequences, especially as to therapy with antimicrobial agents. The increase in the frequency of Methicillin-Resistant Staphylococcus aureus (MRSA) as the causal agent of nosocomial infection and the possibility of emergence of resistance to vancomycin demands a quick and trustworthy characterization of isolates and identification of clonal spread within hospitals. Enough information must be generated to permit the implementation of appropriate measures for control of infection, so that outbreaks can be contained. Molecular typing techniques reviewed in this manuscript include:...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Staphylococcus aureus; Molecular epidemiology; Genotyping; Methicillin resistance.
Ano: 2003 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702003000100005
Registros recuperados: 7
Primeira ... 1 ... Última
 

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