Consulta: subjectFacets:"Bacteremia"
Registros recuperados: 30
Data/hora: 05/06/2024 05:28:26

Surveillance programs for detection and characterization of emergent pathogens and antimicrobial resistance: results from the Division of Infectious Diseases, UNIFESP
Provedor de dados: 42
Autores: Colombo,Arnaldo L.; Janini,Mario; Salomão,Reinaldo; Medeiros,Eduardo A. S.; Wey,Sergio B.; Pignatari,Antonio C. C.
Several epidemiological changes have occurred in the pattern of nosocomial and community acquired infectious diseases during the past 25 years. Social and demographic changes possibly related to this phenomenon include a rapid population growth, the increase in urban migration and movement across international borders by tourists and immigrants, alterations in the habitats of animals and arthropods that transmit disease, as well as the raise of patients with impaired host defense abilities. Continuous surveillance programs of emergent pathogens and antimicrobial resistance are warranted for detecting in real time new pathogens, as well as to characterize molecular mechanisms of resistance. In order to become more effective, surveillance programs of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Emerging infectious diseases; HIV; AIDS; Candidemia; Antimicrobial resistance; Bacteremia; Sepsis; Nosocomial infectious.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652009000300020

Evaluation of blood stream infections by Candida in three tertiary hospitals in Salvador, Brazil: a case-control study
Provedor de dados: 55
Autores: 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

Shewanella putrefaciens infective endocarditis
Provedor de dados: 55
Autores: Constant,Jonathan; Chernev,Ivan; Gomez,Eric.
Shewanella putrefaciens rarely causes infection in humans. In the last few decades a growing number of cases have been described. The following report outlines the case of a 40-year- old immunocompetent white man with S. putrefaciens infective endocarditis. This is the first known case of infective endocarditis due to an apparently monomicrobial S. putrefaciens infection, and the second known case of S. putrefaciens-related infective endocarditis worldwide.
Tipo: Info:eu-repo/semantics/report
Palavras-chave: Shewanella; Endocarditis; Bacteremia.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702014000600686

Proposal of a clinical score to stratify the risk of multidrug-resistant gram-negative rods bacteremia in cancer patients
Provedor de dados: 55
Autores: Carena,Alberto A.; Laborde,Ana; Roccia-Rossi,Inés; Palacios,Cynthia J.; Jordán,Rosana; Valledor,Alejandra; Nenna,Andrea; Costantini,Patricia; Dictar,Miguel; Herrera,Fabián.
ABSTRACT  Introduction: Multidrug-resistant gram-negative rods (MDR GNR) represent a growing threat for patients with cancer. Our objective was to determine the characteristics of and risk factors for MDR GNR bacteremia in patients with cancer and to develop a clinical score to predict MDR GNR bacteremia.  Material and Methods: Multicenter prospective study analyzing initial episodes of MDR GNR bacteremia. Risk factors were evaluated using a multiple logistic regression (forward-stepwise selection) analysis including variables with a p &lt; 0.10 in univariate analysis.  Results: 394 episodes of GNR bacteremia were included, with 168 (42.6 %) being MDR GNR. Five variables were identified as independent risk factors: recent antibiotic use (OR = 2.8, 95 % CI...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bacteremia; Cancer; Multidrug-Resistant gram-negative rods.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702020000100034

Sepsis by Chromobacterium violaceum: first case report from Colombia
Provedor de dados: 55
Autores: Díaz Pérez,Julio Alexander; García,Jorge; Rodriguez Villamizar,Laura Andrea.
Chromobacterium violaceum is found in tropical and subtropical regions; it is the only Chromobacterium species pathogenic for humans. Due to its rare presentation, physicians often ignore the importance of this pathogen. We report a fulminant fatal case of bacteremia in a 38-year-old Colombian man. The clinical manifestations were fever, thoracic pain, respiratory failure and death. His condition, from the beginning of clinical diagnosis, went into continuous deterioration, till his death, within a few days after the symptoms began. Two hemocultures isolated C. violaceum. We conclude that doctors should consider this differential diagnosis in patients with systemic inflammatory response syndrome, with continuous deterioration.
Tipo: Info:eu-repo/semantics/report
Palavras-chave: Chromobacterium violaceum; Bacteremia.
Ano: 2007
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702007000400016

Methicillin-resistant Staphylococcus lugdunensis carrying SCCmec type V misidentified as MRSA
Provedor de dados: 55
Autores: 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

Bacteremia due to Moraxella osloensis: a case report and literature review
Provedor de dados: 55
Autores: Maruyama,Yuta; Shigemura,Tomonari; Aoyama,Koki; Nagano,Noriyuki; Nakazawa,Yozo.
ABSTRACT Herein we report the case of a 10-year-old boy with an autosomal mosaic mutation who developed bacteremia. The causative agent was identified as Moraxella osloensis by matrix-assisted laser desorption/ionization time-of-flight mass spectrometry and 16S rRNA gene sequencing. In the pediatric population, there have been 13 case reports of infection attributed to M. osloensis and this is the fifth reported case of pediatric bacteremia due to M. osloensis. After Moraxella species infection was confirmed, the patient recovered with appropriate antimicrobial therapy. It is important to consider that M. osloensis can cause serious infections, such as bacteremia, in otherwise healthy children.
Tipo: Info:eu-repo/semantics/report
Palavras-chave: Moraxella osloensis; Bacteremia; MALDI-TOF MS; 16S rRNA gene sequencing.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702018000100060

Prevalence of Mycobacterium avium and Mycobacterium tuberculosis in blood cultures of Brazilian AIDS patients after introduction of highly active retroviral therapy
Provedor de dados: 55
Autores: Nakatani,S.M.; Messias-Reason,I.J.T.; Burger,M.; Cunha,C.A.
The use of highly active antiretroviral therapy (HAART) for the treatment of HIV infection has been associated with a marked reduction in the incidence of most opportunistic infections. From April 2001 to February 2002, 80 blood samples from patients who were suspected to have disseminated mycobacterial infection, presenting fever and (preferably) a CD4 T cell count &lt; 100.0 cell/mL were investigated. Twelve (15%) of the 80 blood cultures were positive for mycobacteria, with Mycobacterium avium being identified in 7 (8.8%) samples and M. tuberculosis in 5 (6.2%). The TCD4+ count at the time of M. avium bacteremia ranged from 7cells/µL (average of 48.5 cell/µL), while in M. tuberculosis bacteremia it ranged from 50.0 cells/µL (average of 80.0 cell/µL)....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bacteremia; M. avium; M. tuberculosis; AIDS.
Ano: 2005
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702005000600003

Polyclonal outbreak of bacteremia caused by Burkholderia cepacia complex and the presumptive role of ultrasound gel
Provedor de dados: 55
Autores: 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

A simple mathematical model to determine the ideal empirical antibiotic therapy for bacteremic patients
Provedor de dados: 55
Autores: Tuon,Felipe F.; Rocha,Jaime L.; Leite,Talita M.; Dias,Camila.
BACKGROUND: Local epidemiological data are always helpful when choosing the best antibiotic regimen, but it is more complex than it seems as it may require the analysis of multiple combinations. The aim of this study was to demonstrate a simplified mathematical calculation to determine the most appropriate antibiotic combination in a scenario where monotherapy is doomed to failure. METHODS: The susceptibility pattern of 11 antibiotics from 216 positive blood cultures from January 2012 to January 2013 was analyzed based on local policy. The length of hospitalization before bacteremia and the unit (ward or intensive care unit) were the analyzed variables. Bacteremia was classified as early, intermediate or late. The antibiotics were combined according to the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Mathematical model; Infection; Antibiotic; Bacteremia.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702014000400360

Bacteremic pneumococcal pneumonia: serotype distribution, antimicrobial susceptibility, severity scores, risk factors, and mortality in a single center in Chile
Provedor de dados: 55
Autores: 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% &gt;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

Fatal bacteremia due to Anaerobiospirillum succiniciproducens: first description in Brazil
Provedor de dados: 55
Autores: 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

Pressure ulcer as a reservoir of multiresistant Gram-negative bacilli: risk factors for colonization and development of bacteremia
Provedor de dados: 55
Autores: Braga,Iolanda A.; Brito,Cristiane S.; Diogo Filho,Augusto; Gontijo Filho,Paulo P.; Ribas,Rosineide M.
Abstract The purpose of this study was to identify the risk factors that predispose patients who are hospitalized with pressure ulcers (PUs) colonized by Gram-negative bacilli (GNB) to develop bacteremia. In addition, we also detected main phenotypes of resistance in infected and uninfected PUs. A prospective cohort study was conducted at the Clinical Hospital of the Federal University of Uberlândia including patients with Stage II or greater PUs, colonized or not with GNB, from August 2009 to July 2010. Infected ulcers were defined based on clinical signs and on positive evaluation of smears of wound material translated by a ratio of polymorphonuclear cells to epithelial cells ≥2:1, after Giemsa staining. A total of 60 patients with Stage II PUs were...
Tipo: Info:eu-repo/semantics/other
Palavras-chave: Pressure ulcer; Gram-negative bacilli; Colonization; Bacteremia.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702017000200171

Frequency of microorganisms isolated in patients with bacteremia in intensive care units in Colombia and their resistance profiles
Provedor de dados: 55
Autores: 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

Clinical and microbiological characteristics of bloodstream infections in a tertiary hospital in Maceió, Alagoas, Brazil
Provedor de dados: 55
Autores: Tenório,Maria Tereza Freitas; Porfírio,Zenaldo; Lopes,Antonio Carlos; Cendon,Sonia.
We observed the clinical and microbiological characteristics of several stages of bloodstream infections (BSI), as well as the mortality attributed to it in a tertiary hospital in the northeast of Brazil (in the city of Maceió, Alagoas). A prospective cohort of 143 patients who had at least one positive blood culture was enrolled in the study. Their clinical evolution was followed up for 30 days from October 2005 to December 2006. The relation among the qualitative variables was verified through Chi-square test. The significance level was 5%. The statistical package adopted was SPSS 15.0 for Windows. Up to the thirtieth day, 30.1% of the patients presented bacteremia and 69.9% developed sepsis.Among these, 20.3% developed severe sepsis and 10.5% septic...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bloodstream infections; Blood cultures; Bacteremia; Spesis.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702010000200011

Fatal case of bacteremia caused by an atypical strain of Corynebacterium mucifaciens
Provedor de dados: 55
Autores: 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

Risk factors for bloodstream infections caused by extended-spectrum β-lactamase-producing Escherichia coli and Klebsiella pneumoniae
Provedor de dados: 55
Autores: Quirante,Olivia Ferrández; Cerrato,Santiago Grau; Pardos,Sonia Luque.
The objective of this study was to identify risk factors for bacteremia by extended-spectrum β-lactamase (ESBL)-producing Escherichia coli and Klebsiella pneumoniae. Retrospective case-control study performed in a 450-bed acute care academic tertiary hospital in Barcelona, Spain. Cases included 53 patients with ESBL-producing E. coli or K. pneumoniae bacteremia, and 159 controls with non-ESBL-producing E. coli or K. pneumoniae bacteremia. Controls were matched in a 3:1 ratio to case patients according to species of infecting organism, age, and severity of illness in the 24-48h before blood sample collection for culture calculated by the Simplified Acute Physiology Score (SAPS II) system. Previous antimicrobials were more frequently administered to cases...
Tipo: Info:eu-repo/semantics/other
Palavras-chave: Bacteremia; Β-lactamases; Risk factors.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702011000400012

Rate and time to develop first central line-associated bloodstream infections when comparing open and closed infusion containers in a Brazilian Hospital
Provedor de dados: 55
Autores: Vilins,Margarete; Blecher,Sergio; Silva,Maria A. Maretti da; Rosenthal,Victor Daniel; Barker,Kerry; Salomao,Reinaldo.
The objective of the study was to determine the effect of switching from an open (glass or semi-rigid plastic) infusion container to a closed, fully collapsible plastic infusion container (Viaflex®) on rate and time to onset of central lineassociated bloodstream infections (CLABSI). An open-label, prospective cohort, active healthcare-associated infection surveillance, sequential study was conducted in three intensive care units in Brazil. The CLABSI rate using open infusion containers was compared to the rate using a closed infusion container. Probability of acquiring CLABSI was assessed over time and compared between open and closed infusion container periods; three-day intervals were examined. A total of 1125 adult ICU patients were enrolled. CLABSI...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bacteremia; Central line-associated blood stream infections; Intensive care unit; Healthcare-associated infection; Intravascular device.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702009000500004

Klebsiella ESBL bacteremia-mortality and risk factors
Provedor de dados: 55
Autores: Tuon,Felipe Francisco; Kruger,Margot; Terreri,Marcos; Penteado-Filho,Sergio R; Gortz,Lucas.
Background: Extended spectrum β-lactamase (ESBL)-producing bacteria have become recognized as a problem in South America. The aim of this study was to evaluate risk factors and mortality rate in bacteremia caused by ESBL-producing Klebsiella pneumoniae in a Brazilian hospital. Methods: A three-year retrospective cohort study with 104 cases of K. pneumoniae bacteremia (61 ESBL and 43 non-ESBL). Several clinical and laboratory variables were evaluated. The outcome of interest was 30-day mortality. The adequate treatment was evaluated according to antibiotic susceptibility. Results: Multivariable analysis showed that central venous catheter and mechanical ventilation were independent risk factors for ESBL. The duration of hospitalization before the bacteremia...
Tipo: Info:eu-repo/semantics/other
Palavras-chave: Klebsiella pneumoniae; Beta-lactamases; Bacteremia; Carbapenems.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702011000600016

Staphylococcus aureus bacteremia: what is the impact of oxacillin resistance on mortality?
Provedor de dados: 55
Autores: Cassettari,V.C.; Strabelli,T.; Medeiros,E.A.S.
In order to analyse the impact of oxacillin resistance on the mortality of Staphylococcus aureus bacteremia, and to assess the antimicrobial susceptibility of community-acquired strains in two large university hospitals (the Instituto do Coração do Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo and the Instituto Central do Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo), we carried out a four-month-long prospective cohort study, which included 163 consecutive cases of S. aureus bacteremia. Of these, 140 (85.9%) were hospital-acquired, 9 (5.5%) were community-acquired and 14 (8.6%) were of indeterminate origin. No cases of community-acquired infection by oxacillin-resistant S. aureus was identified....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Staphylococcus aureus; Bacteremia; Mortality.
Ano: 2005
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702005000100012

Microbiology and clinical characteristics of viridans group streptococci in patients with cancer
Provedor de dados: 55
Autores: 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

Staphylococcus aureus bacteremia: comparison of two periods and a predictive model of mortality
Provedor de dados: 55
Autores: Conterno,Lucieni de Oliveira; Wey,Sérgio Barsanti; Castelo,Adauto.
Staphylococcus aureus is an important pathogen causing bacteremia, primarily affecting hospitalized patients. We studied the epidemiology of S. aureus bacteremia, comparing two periods (early and mid 1990s) and developed a predictive model of mortality. A nested case-control was done. All 251 patients over 14 years old with positive blood cultures for S. aureus were selected. MRSA (methicillin resistant S. aureus) was isolated in 63% of the cases. When comparing the two periods MRSA community-acquired bacteremia increased from 4% to 16% (p=0.01). There was no significant difference in the mortality rate between the two periods (39% and 33%, p=0.40). Intravascular catheters provoked 24% of the cases of bacteremia and were associated with the lowest rate of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Staphylococcus aureus; Bacteremia; Mortality.
Ano: 2002
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702002000600004

Brazilian experience in EU-CORE: daptomycin registry and treatment of serious Gram-positive infections
Provedor de dados: 55
Autores: 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

Clinical, epidemiological, and microbiological characteristics of bacteremia caused by high-level gentamicin-resistant Enterococcus faecalis
Provedor de dados: 56
Autores: Vigani,A.G.; Macedo de Oliveira,A.; Bratfich,O.J.; Stucchi,R.S.B.; Moretti,M.L.
Enterococcus spp bacteremia is associated with high mortality and the appearance of high-level gentamicin resistance (HLGR) created additional challenges for the treatment of these infections. We evaluated the epidemiological and clinical characteristics of patients with bacteremias caused by HLGR and non_HLGR Enterococcus faecalis isolates at a teaching hospital in the State of São Paulo, Brazil. Patients with bacteremia due to E. faecalis diagnosed between January 1999 and December 2003 were included in the study. We collected clinical, epidemiological, and microbiological data from medical records. Banked isolates were typed using pulsed-field gel electrophoresis. We identified 145 cases of E. faecalis bacteremia: 66 (45.5%) were caused by HLGR isolates...
Tipo: Info:eu-repo/semantics/other
Palavras-chave: Enterococcus faecalis; Bacteremia; High-level gentamicin resistance; Infection control; Enterococcus faecalis genotyping.
Ano: 2008
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2008001000010

Assessing the diversity of the virulence potential ofEscherichia coli isolated from bacteremia in São Paulo, Brazil
Provedor de dados: 56
Autores: 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

Oxacilin-resistant Coagulase-negative staphylococci (CoNS) bacteremia in a general hospital at São Paulo city, Brasil
Provedor de dados: 58
Autores: 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

Ochrobactrum anthropi bacteremia in a preterm infant with cystic fibrosis
Provedor de dados: 58
Autores: Menezes,Fernando Gatti; Abreu,Maria Gabriela Ballalai; Kawagoe,Julia Yaeko; Warth,Arno Norberto; Deutsch,Alice D'Agostini; Dornaus,Maria Fernanda P S; Martino,Marines Dalla Valle; Correa,Luci.
Ochrobactrum anthropi infection in newborn patients is rare, and the treatment is challenging because of its widespread and unpredictable resistance to antimicrobial agents and discrepancies between in vitro susceptibility and in vivo efficacy. We report the clinical and microbiological characteristics of Ochrobactrum anthropi bacteremia in a preterm patient.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bacteremia; Cystic fibrosis; Newborn; Meconium; Premature birth.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822014000200026

Procalcitonin and C-reactive protein in differantiating to contamination from bacteremia
Provedor de dados: 58
Autores: Oksuz,Lutfiye; Somer,Ayper; Salman,Nuran; Erk,Osman; Gurler,Nezahat.
Procalcitonin (PCT) and C-reactive protein (CRP) are important biological markers used in the diagnosis of severe infections. The aim of this study was to evaluate the consistency of blood culture with PCT and CRP in differentiating contamination and non-bacteremia from true bacteremia. In this study blood samples were obtained from 809 febrile patients and analyzed using BACTEC 9120 system. All of positive blood cultures were performed Gram staining. The microorganisms were identified with conventional methods and automated systems. Antibiotic susceptibility tests were made by disc diffusion. PCT levels were analyzed by mini VIDAS device and PCT kit. PCT and CRP levels were analyzed with blood cultures in same times. Kruskal Wallis test, Mann-Whitney U...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Procalcitonin; C-reactive protein; Bacteremia; Blood cultures; Contamination.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822014000400036

Aspectos clínicos e radiográficos da osteodistrofia hipertróica em cães: estudo retrospectivo de 16 casos
Provedor de dados: 65
Autores: Canola,Júlio Carlos; Andrade,Alexandre Lima de.
Descrevem-se 16 casos de osteodistrofia hipertrófica (OH) entre 13.483 casos levantados nos arquivos do Setor de radiologia do Hospital Veterinário "Governador Laudo Natel" da FCAVJ-UNESP, entre 1° de janeiro de 1977 a 31 de dezembro de 1995. A enfermidade mostrou-se de baixa manifestação clínica, atingindo cães jovens em fase de crescimento, pertencentes às raças de grande porte e supernutridos. Destaca-se ainda, a importância do exame radiográfico seriado no diagnóstico da enfermidade e principalmente como método de avaliação da reversão clínica do processo, mormente quando ocorre bacteremia associada.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Osteodistrofia hipertrófica; Bacteremia; Cão.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84781996000300014

Polymerase Chain Reaction and blood culture for diagnosis of canine sepsis
Provedor de dados: 65
Autores: 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