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1.
Int J Antimicrob Agents ; 30(6): 541-5, 2007 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-17900873

RESUMO

Forty-one paediatric isolates of Salmonella spp. from Cerrahpasa Faculty of Medicine, Istanbul, Turkey, between 2001 and 2004 were examined for susceptibility to various antibiotics and presence of antibiotic resistance genes. Pulsed-field gel electrophoresis and plasmid profiling were used to determine possible genetic relationships among Salmonellaenterica subsp. enterica clinical isolates. Plasmids from resistant strains were not transferred by conjugation to recipient Escherichia coli cells. Pulsed-field gel electrophoresis and restriction enzyme digestion analysis of DNA revealed that multidrug-resistant isolates belonged to the same clonal group, characterized by ACSSuT resistotype. Isolates of R-type ACSSuT were positive for the intI gene and possessed a single plasmid of 60 MDa.


Assuntos
Antibacterianos/farmacologia , Farmacorresistência Bacteriana Múltipla/genética , Eletroforese em Gel de Campo Pulsado/métodos , Plasmídeos/genética , Infecções por Salmonella/epidemiologia , Salmonella enteritidis/classificação , Salmonella typhimurium/classificação , Técnicas de Tipagem Bacteriana , Criança , DNA Bacteriano/análise , Humanos , Testes de Sensibilidade Microbiana , Reação em Cadeia da Polimerase/métodos , Infecções por Salmonella/microbiologia , Salmonella enteritidis/efeitos dos fármacos , Salmonella enteritidis/genética , Salmonella enteritidis/isolamento & purificação , Salmonella typhimurium/efeitos dos fármacos , Salmonella typhimurium/genética , Salmonella typhimurium/isolamento & purificação , Sorotipagem , Turquia/epidemiologia
4.
J Trop Pediatr ; 48(6): 373-7, 2002 12.
Artigo em Inglês | MEDLINE | ID: mdl-12521283

RESUMO

Infection-related mortality affects the overall survival rates of children who are receiving treatment for cancer. The leading cause of mortality is bacteremia and sepsis related to it in febrile neutropenic patients. All positive blood cultures of febrile neutropenic patients treated in the Department of Pediatric Hematology-Oncology, Cerrahpasa Medical School, between January 1995 and January 2001 were reviewed. Cultures grew 159 micro-organisms, 95 (60 per cent) of which were Gram-positive bacteria, 56 (35 per cent) were Gram-negative bacteria and eight (5 per cent) were fungi. Coagulase-negative staphylococci (63, 40 per cent) and S. aureus (8, 5 per cent) were the most frequent Gram-positive pathogens. Klebsiella, E. coli, Enterobacter and Pseudomonas infections were the primary Gram-negative pathogens. Twenty cases were lost because of sepsis: in 11 cases (55 per cent) Gram-negative bacteria, in eight cases (40 per cent) Gram-positive bacteria, and in only one case a fungus were the causative organisms. Although vancomycin was not included in the first-line treatment, the mortality rate of Gram-positive bacteremia was 8 per cent. In Gram-negative bacteremia it was 20 per cent. Gram-negative pathogens, which were resistant to multiple antibiotics, caused the mortality. Drug resistance and mortality due to micro-organisms must be taken into consideration while febrile neutropenia protocols are prepared.


Assuntos
Bacteriemia/microbiologia , Infecções por Bactérias Gram-Negativas/microbiologia , Infecções por Bactérias Gram-Positivas/microbiologia , Neoplasias/tratamento farmacológico , Neutropenia/complicações , Adolescente , Bacteriemia/mortalidade , Criança , Pré-Escolar , Feminino , Infecções por Bactérias Gram-Negativas/mortalidade , Infecções por Bactérias Gram-Positivas/mortalidade , Humanos , Hospedeiro Imunocomprometido , Lactente , Masculino , Testes de Sensibilidade Microbiana , Neoplasias/mortalidade , Neutropenia/induzido quimicamente , Estudos Retrospectivos , Taxa de Sobrevida , Turquia/epidemiologia
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