title: [Phenotyping of bacteria isolated in blood cultures from critical patients].
abstract: Bloodstream infections are a serious complication among critical patients. The detection of microbial pathogens in blood cultures is an important diagnostic tool. This study aimed to isolate and characterize bacteria from the blood of patients admitted to the clinical intensive care unit of a teaching hospital, between April 2003 and April 2004. The bacteria isolated were identified by biochemical/enzymatic tests and detection of the antimicrobial susceptibility profile using the disk diffusion method. A total of 304 blood cultures from 195 patients were evaluated. Forty-nine (16.1%) of the blood cultures presented microbe development. The predominant species was Pseudomonas stutzeri (18.2%). Gram-positive cocci and enterobacteria showed greater resistance to ampicillin; vancomycin and linezolid were the most active agents for Gram-positive cocci and carbapenems for Gram-negative rods. Because of the impact of bloodstream infection within the hospital context, additional studies are needed in order to give backing for prevention and control measures.
authors.affiliation: Departamento de Microbiologia, Instituto de Patologia Tropical e Saúde Pública, Universidade Federal de Goiás, Rua 31 no. 100, Goiânia, GO. larastefania@yahoo.com.br
authors.forename: Lara Stefânia Netto de Oliveira
authors.initials: LS
authors.lastname: Leão
authors.forename: Xisto Sena
authors.initials: XS
authors.lastname: Passos
authors.forename: Cleomenes
authors.initials: C
authors.lastname: Reis
authors.forename: Lêda Maria Almeida
authors.initials: LM
authors.lastname: Valadão
authors.forename: Maria do Rosário Rodrigues
authors.initials: Mdo R
authors.lastname: Silva
authors.forename: Fabiana Cristina
authors.initials: FC
authors.lastname: Pimenta
mesh_terms: D016470:Bacteremia / Q000175:diagnosis / Q000382:microbiology*; D015373:Bacterial Typing Techniques; D016638:Critical Illness; D006090:Gram-Negative Bacteria / Q000145:classification* / Q000187:drug effects / Q000302:isolation & purification; D006094:Gram-Positive Bacteria / Q000145:classification* / Q000187:drug effects / Q000302:isolation & purification; D006785:Hospitals, University; D006801:Humans; D007362:Intensive Care Units; D008826:Microbial Sensitivity Tests; D010641:Phenotype