Abstract
Abstract Background/Introduction Acute kidney failure (AKF) appears in a high percentage of patients with infective endocarditis (IE), becoming a complication related to the mortality of the disease and delayed recovery of patients. Purpose To investigate the factors that are related to the development of AKF in patients with IE. Methods Study of all cases of IE consecutively diagnosed in an university hospital between 2005 and 2021. A disease extension protocol was carried out using imaging tests and the levels of potentially nephrotoxic antibiotics were monitored. Furthermore, starting in 2010, a multidisciplinary committee (MC) was created to follow patients with EI. Factors potentially related to the development of AKF during hospital admission according to RIFLE criteria were analyzed using a binary logistic regression analysis. Results 305 cases were included, 96.7% of them meeting definitive IE criteria. The median age was 66 (54-74.5) years, 75.4% male. The most frequent microorganism was S. aureus (66; 21.6%), 172 (56.4%) underwent surgery and 107 patients (35.1%) died. 149 cases (45.3%) developed AKF, with no differences before (45.3%) and after the creation of the CM. The variables related in the multivariate analysis to the appearance of AKF were age (OR 1.01; 95% CI: 1.01-1.05; p= 0.006), baseline creatinine (OR= 1.53; 95% CI = 1.22-1.68; p<0.001). ), peripheral embolism (OR=1.86; 95% CI = 1.07-3.22; p= 0.027), the development of heart failure (OR=1.98; 95% CI = 1.12-3.22; p= 0.017) and left ventricular systolic dysfunction (OR= 4.02; 95% CI = 1.09-14.85; p= 0.037). None of the other variables analyzed, including the type of microorganism and the use of nephrotoxic antibiotics, were related to the development of AKF. Conclusions In a hospital center with a protocol for the study and treatment of infective endocarditis, the development of AKF is related to age, baseline creatinine, peripheral embolism, and the development of heart failure.
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