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Revista argentina de cardiología

versión On-line ISSN 1850-3748

Resumen

AVELANA, PATRICIA M. et al. Infective endocarditis in argentina. results of the eira 3 Study. Rev. argent. cardiol. [online]. 2018, vol.86, n.1, pp.21-29. ISSN 1850-3748.

Background: The clinical and epidemiological characteristics of infective endocarditis (IE), a complex disease with high morbidity and mortality, have changed over time. Our country lacks updated information since the publication of the EIRA 1 and 2 studies (1992 and 2002).

Objective: The aim of this study was to analyze the epidemiology, clinical and microbiological characteristics and hospital outcome of patients with IE.

Methods: A prospective multicenter observational study of patients with definite IE was conducted according to the modified Duke criteria.

results: A total of 502 patients were recruited from 48 centers (69.5% in the Buenos Aires Metropolitan Area). Mean age 60.7±19.3 years and 69.9% (n=351) were men]; 54.64% of patients (n=274) did not present underlying heart disease, 19.9% (n=100) had pros-thetic valves and 38.1% (n=191) had history of a healthcare-related procedure. The diagnosis was made within one month after the first clinical manifestation in 73.3% of cases (n=368) [76.5% (n=384) in the native valve]. The aortic valve was the most commonly affected valve (45.96%; n=230), followed by mitral valve involvement (33%; n=150). The most common germs were Staphylococcus spp in 46.3% of patients (n=232), Streptococcus spp in 28.2% (n=141) and Enterococcus in 12.8% (n=64). Blood cultures were nega-tive in 44 patients (8.76%). Complications: heart failure (30.9%; n=155), peripheral embolism (19.6%; n=98) and abscess (15.5%; n=78). Adequate empirical antibiotic treatment was administered to 62.4% (n=313) of the patients and 43.6% (n=219) underwent surgical treatment. Overall in-hospital mortality was 25.5% (n=128). Age, history of chronic kidney failure, mitral valve disease and heart failure were independent predictors of in-hospital mortality.

Conclusions: A high percentage of patients with IE do not present known prior heart disease. Staphylococcus spp was the most com-mon microorganism. Mortality remains high and similar to the one observed in the EIRA 1 and 2 studies.

Palabras clave : Infective endocarditis- Epidemiology- Prosthetic cardiac valve- Hospital mortality.

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