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Preeminence of Staphylococcus aureus in infective endocarditis: a 1-year population-based survey.

Abstract : BACKGROUND: Observational studies showed that the profile of infective endocarditis (IE) significantly changed over the past decades. However, most studies involved referral centers. We conducted a population-based study to control for this referral bias. The objective was to update the description of characteristics of IE in France and to compare the profile of community-acquired versus healthcare-associated IE. METHODS: A prospective population-based observational study conducted in all medical facilities from 7 French regions (32% of French individuals aged ≥18 years) identified 497 adults with Duke-Li-definite IE who were first admitted to the hospital in 2008. Main measures included age-standardized and sex-standardized incidence of IE and multivariate Cox regression analysis for risk factors of in-hospital death. RESULTS: The age-standardized and sex-standardized annual incidence of IE was 33.8 (95% confidence interval [CI], 30.8-36.9) cases per million inhabitants. The incidence was highest in men aged 75-79 years. A majority of patients had no previously known heart disease. Staphylococci were the most common causal agents, accounting for 36.2% of cases (Staphylococcus aureus, 26.6%; coagulase-negative staphylococci, 9.7%). Healthcare-associated IE represented 26.7% of all cases and exhibited a clinical pattern significantly different from that of community-acquired IE. S. aureus as the causal agent of IE was the most important factor associated with in-hospital death in community-acquired IE (hazard ratio [HR], 2.82 [95% CI, 1.72-4.61]) and the single factor in healthcare-associated IE (HR, 2.54 [95% CI, 1.33-4.85]). CONCLUSIONS: S. aureus became both the leading cause and the most important prognostic factor of IE, and healthcare-associated IE appeared as a major subgroup of the disease.
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Submitted on : Thursday, May 23, 2013 - 4:46:10 PM
Last modification on : Tuesday, October 27, 2020 - 2:34:31 PM

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Christine Selton-Suty, Marie Célard, Vincent Le Moing, Thanh Doco-Lecompte, Catherine Chirouze, et al.. Preeminence of Staphylococcus aureus in infective endocarditis: a 1-year population-based survey.. Clinical Infectious Diseases, Oxford University Press (OUP), 2012, 54 (9), pp.1230-9. ⟨10.1093/cid/cis199⟩. ⟨hal-00825451⟩



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