• Mercedes Pérez Ponsa, Rodrigo Bagnati, Santiago Decotto, Rocío Blanco, Florencia Parcerisa, Corina Nemirovsky, Alberto Domenech, Emiliano Rossi, and Rodolfo Pizarro.
• Servicio de Cardiología, Hospital Italiano de Buenos Aires, Argentina. E-mail: mercedes.perez@hospitalitaliano.org.ar.
• Medicina (B Aires). 2023 Jan 1; 83 (5): 753761753-761.

IntroductionMortality of infective endocarditis (IE) in Argentina continues to be high. The aim objective was to describe the clinical characteristics and identify factors associated with in-hospital and long-term mortality in patients with native valve IE.MethodsRetrospective cohort study including adult patients with diagnosis of native valve IE, hospitalized during 2011-2021.ResultsA total of 129 patients with a mean age of 66±17 years were included. The most frequent responsible organism was Staphylococcus aureus (SA) (38.8%). Surgical indication criteria were present in 63.6% of the patients. Mortality during hospitalization was 22.5% .In the multivariate analysis that included Charlson comorbidity index, SA infection and the presence of surgical indication criteria, an adjusted OR of mortality of 1.32 (95%CI 1.10-1.57; p = 0.003), 2.75 (95%CI 1.11-6.8; p = 0.028) and 4.14 (95%CI 1.34-12; p = 0.013), respectively, was observed. In the multivariate analysis for long term mortality, that added surgical indication criteria and the performance of surgery during hospitalization, an adjusted OR of 1.62 (CI95% 1.31-2.00; p<001), 0.77 (95%CI 0.31-1.93; p = 0.58), 7.49 (95%CI 2.07-27.07; p = 0.002) and 0.21 (95%CI 0.06-0.70; p = 0.01), respectively, was observed.ConclusionsMortality in IE was associated with the degree of previous comorbidity, with the presence of surgical indication criteria and, inversely, with the timely completion of surgical treatment.

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