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| Registros recuperados: 30 | |
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| Santos,A.C.M.; Zidko,A.C.M.; Pignatari,A.C.; Silva,R.M.. |
| Most of the knowledge of the virulence determinants of extraintestinal pathogenicEscherichia coli (ExPEC) comes from studies with human strains causing urinary tract infections and neonatal meningitis and animal strains causing avian colibacillosis. In this research, we analyzed the phylogenetic background, the presence of 20 ExPEC virulence factors, and the intrinsic virulence potential of 74 E. coli strains isolated in São Paulo, Brazil, from 74 hospitalized patients (43 males and 31 females) with unknown-source bacteremia. Unlike other places in the world, the bacteremic strains originated equally from phylogroups B2 (35%) and D (30%). A great variability in the profiles of virulence factors was noted in this survey. Nevertheless, 61% of the strains... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Bacteremia; Extraintestinal pathogenic Escherichia coli; Virulence factors; Intrinsic virulence potential; Phylogenetic background. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2013001100968 |
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| Fica,Alberto; Bunster,Nicolás; Aliaga,Felipe; Olivares,Felipe; Porte,Lorena; Braun,Stephanie; Dabanch,Jeannette; Hormázabal,Juan Carlos; Hernández,Antonio; Benavides,María Guacolda. |
| AIMS:Bacteremic pneumococcal pneumonia (BPP) is a severe condition. To evaluate seasonal distribution, mortality, serotype frequencies, antimicrobial susceptibility, and different severity scores among patients with BPP.PATIENTS AND METHODS:Patients were identified by laboratory data and restricted to adulthood. Standard methods were used for serotyping and antimicrobial susceptibility. Risk factors were analyzed by univariate and multivariate methods. Severity scores (APACHE II, CURB-65 and CAP PIRO) were compared using ROC curves.RESULTS:Sixty events of community-acquired BPP occurred between 2005 and 2010. A seasonal pattern was detected. Mean age was 72.1 years old (81.4% >60 years). All had a predisposing factor. Previous influenza (3.3%) or... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Streptococcus pneumoniae; Bacteremia; Serotyping; Microbial drug resistance; Risk factors; Mortality; Elderly; CURB-65; APACHE II; PIRO. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702014000200115 |
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| Timerman,Artur; Brites,Carlos; Bicudo,Eliana; Grinbaum,Renato S.; Costa Filho,Rubens; Carrilho,Claudia D.M.; Bichels,Andre; Barreto,Tânia. |
| OBJECTIVES: To collect data about non-controlled prescribing use of daptomycin and its impact among Brazilian patients with serious Gram positive bacterial infection, as well as the efficacy and safety outcomes. MATERIALS AND METHODS: This is a multi-center, retrospective, non-interventional registry (August 01, 2009 to June 30, 2011) to collect data on 120 patients (44 patients in the first year and 76 patients in the second year) who had received at least one dose of commercial daptomycin in Brazil for the treatment of serious Gram-positive bacterial infection. RESULTS: Right-sided endocarditis (15.8%), complicated skin and soft tissue infections (cSSTI)wound (15.0%) and bacteremia-catheter-related (14.2%) were the most frequent primary infections; lung... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Daptomycin; Methicillin-resistant; Staphylococcus aureus; Bacteremia; Endocarditis; Skin diseases; Infectious. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702013000600004 |
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| Barberino,Maria Goreth; Silva,Nanci; Rebouças,Carla; Barreiro,Katarine; Alcântara,Ana Paula; Netto,Eduardo M.; Albuquerque,Lígia; Brites,Carlos. |
| Invasive infections caused by Candida spp. are an important problem in immunocompromised patients. There is scarce data on the epidemiology of blood stream candidiasis in Salvador, Brazil. This study evaluates the risk factors associated with candidemia, among patients admitted to three tertiary, private hospitals, in Salvador, Brazil. We conducted a case-control, retrospective study to compare patients with diagnosis of candidemia in three different tertiary hospitals in Salvador, Brazil. Patients were matched for nosocomial, acquired infections, according to the causal agent: cases were defined by positive blood cultures for Candida species. Controls were those patients who had a diagnosis of systemic bacterial infection, with a positive blood culture to... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Invasive candidiasis; Risk factors; Bacteremia. |
| Ano: 2006 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702006000100008 |
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| Secchi,Carina; Cantarelli,Vlademir Vicente; Pereira,Fabiana de Souza; Wolf,Hilda Helena Chaer; Brodt,Teresa Cristina Zenobini; Amaro,Maria Cristina O.; Inamine,Éverton. |
| Anaerobiospirillum succiniciproducens is an anaerobic, Gram-negative, spiral shaped bacteria, which is motile by means of bipolar tuffs of flagella. This organism appears to be a rare cause of bacteremia in humans, and it usually affects patients submitted to immunosuppressive therapy. Anaerobiospirillum succiniciproducens resembles Campylobacter spp. in Gram-stained preparations, however, it is considered resistant to most antimicrobial drugs that are used to treat Campylobacter infections. We observed Gram-negative, spiral shaped bacteria in Gram-stained preparations from blood culture flasks. Growth occurred only under anaerobic incubation, and identification to the species level was achieved by PCR amplification of the 16S rRNA gene, followed by direct... |
| Tipo: Info:eu-repo/semantics/report |
Palavras-chave: Bacteremia; Anaerobiospirillum spp.; Anaerobiospirillum succiniciproducens. |
| Ano: 2005 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702005000200008 |
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| Cantarelli,Vlademir Vicente; Brodt,Teresa Cristina. Z.; Secchi,Carina; Inamine,Everton; Pereira,Fabiana de Souza; Pilger,Diogo Andre. |
| Corynebacterium species have often been considered normal skin flora or contaminants; however, in recent years they have been increasingly implicated in serious infections. Moreover, many new species have been discovered and old species renamed, especially after molecular biology techniques were introduced. Corynebacterium mucifaciens is mainly isolated from blood and from other normally-sterile body fluids; it forms slightly yellow, mucoid colonies on blood agar. We report a fatal case of bacteremia due to an atypical strain of C. mucifaciens. This strain had atypical colony morphology; analysis of the 16S rRNA gene was used to define the species. |
| Tipo: Info:eu-repo/semantics/report |
Palavras-chave: Bacteremia; Blood infection; Corynebacterium; Corynebacterium mucifaciens. |
| Ano: 2006 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702006000600013 |
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| Cortes,Jorge Alberto; Leal,Aura Lucía; Montañez,Anita María; Buitrago,Giancarlo; Castillo,Juan Sebastián; Guzman,Lucy. |
| OBJECTIVE: The aim of this study was to describe the most frequently found bacterial microorganisms in bloodstream isolates taken from patients in intensive care units in Colombia and their resistance profiles. METHODS: This was a multicentre descriptive observational study that was carried out between January 2001 and June 2008 with laboratory data from 33 participating hospitals in a surveillance network. RESULTS: The most frequently found microorganisms were coagulase-negative Staphylococci 39.6%, Staphylococcus aureus 12.3%, Klebsiella pneumoniae 8.2%, Escherichia coli 5.7%, Acinetobacter baumannii, 4.0% and Pseudomonas aeruginosa 3.8%. Coagulase-negative Staphylococci registered greater than 70% oxacillin resistance rate. S. aureus presented a change... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Bacteremia; Intensive care unit; Drug resistance; Anti-bacterial agents; Colombia/epidemiology; Epidemiologic surveillance. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702013000300007 |
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| Guerrero-Del-Cueto,Fuensanta; Ibanes-Gutiérrez,Cyntia; Velázquez-Acosta,Consuelo; Cornejo-Juárez,Patricia; Vilar-Compte,Diana. |
| ABSTRACT This study assessed the microbiology, clinical syndromes, and outcomes of oncologic patients with viridans group streptococci isolated from blood cultures between January 1st, 2013 and December 31st, 2016 in a referral hospital in Mexico using the Bruker MALDI Biotyper. Antimicrobial sensitivity was determined using BD Phoenix 100 according to CLSI M100 standards. Clinical information was obtained from medical records and descriptive analysis was performed.Forty-three patients were included, 22 females and 21 males, aged 42 ± 17 years. Twenty (46.5%) patients had hematological cancer and 23 (53.5%) a solid malignancy. The viridans group streptococci isolated were Streptococcus mitis, 20 (46.5%); Streptococcus anginosus, 14 (32.6%); Streptococcus... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Viridans group streptococci; Bacteremia; Bloodstream infection; Cancer; Mucosal damage. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702018000400323 |
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| D'Azevedo,P.A.; Secchi,C.; Antunes,A.L.S.; Sales,T.; Silva,F.M.; Tranchesi,R.; Pignatari,A.C.C.. |
| In the last decades, coagulase-negative staphylococci (CoNS), especially Staphylococcus epidermidis have become an important cause of bloodstream infections. In addition, rates of methicillin-resistance among CoNS have increased substantially, leading to the use of glicopeptides for therapy. The objective of this study was to evaluate eleven consecutives clinically relevant cases of oxacillin-resistant CoNS bacteremia in a general hospital localized in São Paulo city, Brazil. Five different species were identified by different phenotypic methods, including S. epidermidis (5), S. haemolyticus (3), S. hominis (1), S. warneri (1) and S. cohnii subsp urealyticus (1). A variety of Pulsed Field Gel Electrophoresis profiles was observed by macrorestriction DNA... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Coagulase-negative staphylococci; Bacteremia; Oxacillin; PFGE. |
| Ano: 2008 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822008000400006 |
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| Nannini,Esteban C.; Ponessa,Adriana; Muratori,Rosa; Marchiaro,Patricia; Ballerini,Viviana; Flynn,Luis; Limansky,Adriana S.. |
| ABSTRACTA nosocomial polyclonal outbreak associated to bacteremia caused by differentBurkholderia cepacia complex (BCC) species and clones is reported. Molecular characterization identified Burkholderia stabilis, Burkholderia contaminans, and Burkholderia ambifaria among BCC isolates obtained from patients in neonatal and adult intensive care units. BCC was also isolated from an intrinsically contaminated ultrasound gel, which constituted the presumptive BCC source. Prior BCC outbreak related to contaminated ultrasound gels have been described in the setting of transrectal prostate biopsy. Outbreak caused strains and/or clones of BCC have been reported, probably because BCC are commonly found in the natural environment; most BCC species are biofilm... |
| Tipo: Info:eu-repo/semantics/other |
Palavras-chave: Burkholderia cepacia complex; Outbreak; Bacteremia; Polyclonal. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702015000500543 |
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| Silveira,Marcelo Marques da; Cândido,Stéfhano Luis; Santos,Karin Rinaldi dos; Maia,Maerle Oliveira; Souza,Roberto Lopes de; Sousa,Valéria Régia Franco; Almeida,Arleana do Bom Parto Ferreira de; Dutra,Valeria; Nakazato,Luciano. |
| ABSTRACT: Sepsis is characterized by the presence of organ dysfunction secondary to the dysregulated systemic inflammatory response associated with an infection, and has high mortality rates. Traditional diagnostic techniques based on non-microbiological isolation are time-consuming and may delay treatment. Thus, this study aimed to compare bacterial and fungal broad-range polymerase chain reaction (PCR) and blood culture for diagnosis of sepsis in dogs. Blood samples from 88 dogs with suspected sepsis were analyzed by blood culture, and PCR to detect bacterial and fungal DNA. On blood culture, 20 (22.7%) samples tested positive for bacterial isolates; however, none tested positive for fungi. Through PCR analysis, bacterial DNA was detected in 46 (52.3%)... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Blood culture; PCR; Bacteremia; Fungemia. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782018000600452 |
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| Registros recuperados: 30 | |
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