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Staphylococcus aureus Bloodstream Infections: Risk Factors, Outcomes, and the Influence of Methicillin Resistance in Calgary, Canada, 2000–2006

Laupland, Kevin B. ; Ross, Terry ; Gregson, Daniel B.

The Journal of infectious diseases, 2008-08, Vol.198 (3), p.336-343 [Periódico revisado por pares]

Chicago, IL: The University of Chicago Press

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Título:
Staphylococcus aureus Bloodstream Infections: Risk Factors, Outcomes, and the Influence of Methicillin Resistance in Calgary, Canada, 2000–2006
Autor: Laupland, Kevin B. ; Ross, Terry ; Gregson, Daniel B.
Assuntos: Adolescent ; Adult ; Aged ; Aged, 80 and over ; Anti-Bacterial Agents - pharmacology ; Bacteremia ; Bacteremia - drug therapy ; Bacteremia - epidemiology ; Bacteremia - microbiology ; Bacteremia - mortality ; Bacteria ; Bacterial diseases ; Bacterial sepsis ; Bacterial Typing Techniques ; Bacteriology ; Biological and medical sciences ; Canada - epidemiology ; Child ; Child, Preschool ; Community-Acquired Infections - drug therapy ; Community-Acquired Infections - epidemiology ; Community-Acquired Infections - microbiology ; Community-Acquired Infections - mortality ; Cross Infection - drug therapy ; Cross Infection - epidemiology ; Cross Infection - microbiology ; Cross Infection - mortality ; Diabetes ; Dialysis ; Epidemiology ; Female ; Fundamental and applied biological sciences. Psychology ; Human bacterial diseases ; Human immunodeficiency virus ; Humans ; Incidence ; Infant ; Infant, Newborn ; Infections ; Infectious diseases ; Male ; Medical sciences ; Methicillin Resistance ; Methicillin resistant staphylococcus aureus ; Microbiology ; Middle Aged ; Miscellaneous ; Mortality ; Predisposing factors ; Risk Factors ; Severity of Illness Index ; Staphylococcal Infections - drug therapy ; Staphylococcal Infections - epidemiology ; Staphylococcal Infections - microbiology ; Staphylococcal Infections - mortality ; Staphylococcus aureus ; Staphylococcus aureus - classification ; Staphylococcus aureus - drug effects ; Staphylococcus aureus - isolation & purification ; Surveillance ; Treatment Outcome
É parte de: The Journal of infectious diseases, 2008-08, Vol.198 (3), p.336-343
Notas: istex:E59E3448CDCA5576AB51EC206BC45E2C3EFEA644
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Descrição: Background. Reports have suggested that the epidemiological profile of invasive Staphylococcus aureus infections is changing. We sought to describe the epidemiological profile of S. aureus bacteremia and to assess whether the incidence and severity of and the antimicrobial resistance rates associated with this bacteremia are increasing. Methods. Population-based surveillance for S. aureus bacteremias was conducted in the Calgary Health Region (population, 1.2 million) during 2000–2006. Results. The annual incidence of S. aureus bacteremia was 19.7 cases/100,000 population. Although rates of health care-associated and nosocomial methicillin-susceptible S. aureus (MSSA) bacteremia were similar throughout the study, rates of community-acquired MSSA bacteremia gradually decreased, and rates of methicillin-resistant S. aureus (MRSA) bacteremia dramatically increased. The clonal type predominantly isolated was CMRSA-2 (i.e., Canadian [C] MRSA-2), but CMRSA-10 (USA300) strains have been increasingly isolated, especially from community-onset infections, since 2004. Dialysis dependence, organ transplantation, HIV infection, cancer, and diabetes were the most important risk factors and were comparable for MSSA and MRSA bacteremias. The overall case-fatality rate was higher among individuals with MRSA (39%) than among those with MSSA (24%; P<.0001). The annual overall population mortality rate associated with S. aureus bacteremia did not significantly change during the study. Conclusions. Although the overall influence of S. aureus bacteremia has not significantly changed, MRSA has emerged as an important etiology in our region.
Editor: Chicago, IL: The University of Chicago Press
Idioma: Inglês

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Staphylococcus aureus Bloodstream Infections: Risk Factors, Outcomes, and the Influence of Methicillin Resistance in Calgary, Canada, 2000–2006

Laupland, Kevin B. ; Ross, Terry ; Gregson, Daniel B.

Chicago, IL: The University of Chicago Press

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