RT journal article T1 Risk Factors and Predictive Score for Bacteremic Biliary Tract Infections Due to Enterococcus faecalis and Enterococcus faecium: a Multicenter Cohort Study from the PROBAC Project A1 Mussa, Marco A1 Martínez Pérez-Crespo, Pedro María A1 Lopez Cortes, Luis Eduardo A1 Retamar Gentil, Pilar A1 Sousa Dominguez, Adrián A1 Goikoetxea Aguirre, Ane Josune A1 Reguera Iglesias, José María A1 León Jiménez, Eva A1 Fernández Natal, Isabel A1 Armiñanzas Castillo, Carlos A1 Boix Palop, Lucía A1 Cuquet Pedragosa, Jordi A1 Morán Rodríguez, Miguel Ángel A1 Fernandez Suarez, Jonathan A1 del Arco Jiménez, Alfonso A1 Jóver Saenz, Alfredo A1 Bahamonde Carrasco, Alberto A1 Galán Sánchez, Fátima A1 Sánchez Calvo, Juan Manuel A1 Smithson Amat, Alejandro A1 Vinuesa García, David A1 Sánchez Porto, Antonio A1 López Hernández, Inmaculada A1 Rodríguez Baño, Jesús A1 Lanz García, Joaquín A1 Montejo, Miguel A1 Pérez Rodríguez, María Teresa A1 Corzo Delgado, Enrique A1 Fariñas, Carmen A1 Arias Temprano, Marta A1 Martín Aspas, Andrés A1 Gea Lázaro, Isabel A1 Guzmán García, Marcos A1 Canueto Quintero, Jesús A1 Reche, Isabel María A1 Pérez Camacho, Inés A1 Merino de Lucas, Esperanza A1 Natera Kindelán, Clara A2 BiomedicinaBiotecnología y Salud Pública A2 Medicina K1 biliary tract infection K1 bloodstream infection K1 Enterococcus spp AB Biliary-tract bloodstream infections (BT-BSI) caused by Enterococcus faecalis and E. faecium are associated with inappropriate empirical treatment and worse outcomes compared to other etiologies. The objective of this study was to investigate the risk factors for enterococcal BT-BSI. Patients with BT-BSI from the PROBAC cohort, including consecutive patients with BSI in 26 Spanish hospitals between October 2016 and March 2017, were selected; episodes caused by E. faecalis or E. faecium and other causes were compared. Independent predictors for enterococci were identified by logistic regression, and a predictive score was developed. Eight hundred fifty episodes of BT-BSI were included; 73 (8.5%) were due to target Enterococcus spp. (48 [66%] were E. faecium and 25 [34%] E. faecalis). By multivariate analysis, the variables independently associated with Enterococcus spp. were (OR; 95% confidence interval): cholangiocarcinoma (4.48;1.32 to 15.25), hospital acquisition (3.58;2.11 to 6.07), use of carbapenems in the previous month (3.35;1.45 to 7.78), biliary prosthesis (2.19;1.24 to 3.90), and moderate or severe chronic kidney disease (1.55;1.07 to 2.26). The AUC of the model was 0.74 [95% CI0.67 to 0.80]. A score was developed, with 7, 6, 5, 4, and 2 points for these variables, respectively, with a negative predictive value of 95% for a score # 6. A model, including cholangiocarcinoma, biliary prosthesis, hospital acquisition, previous carbapenems, and chronic kidney disease showed moderate prediction ability for enterococcal BT-BSI. Although the score will need to be validated, this information may be useful for deciding empirical therapy in biliary tract infections when bacteremia is suspected. IMPORTANCE Biliary tract infections are frequent, and a significant cause of morbidity and mortality. Bacteremia is common in these infections, particularly in the elderly and patients with cancer. Inappropriate empirical treatment has been associated with increased risk of mortality in bacteremic cholangitis, and the probability of receiving inactive empirical treatment is higher in episodes caused by enterococci. This is because many of the antimicrobial agents recommended in guidelines for biliary tract infections lack activity against these organisms. To the best of our knowledge, this is the first study analyzing the predictive factors for enterococcal BT-BSI and deriving a predictive score. PB American Society for Microbiology SN 2165-0497 YR 2022 FD 2022-06-30 LK http://hdl.handle.net/10498/29718 UL http://hdl.handle.net/10498/29718 LA eng DS Repositorio Institucional de la Universidad de Cádiz RD 07-nov-2026