Lorenzo Bertolino1, Maria Paola Ursi1, Domenico Iossa1, Arta Karruli1, Fabiana D'Amico1, Rosa Zampino1,2, Giovanni Dialetto3, Marisa De Feo3, Emanuele Durante-Mangoni4,5. 1. Department of Advanced Medical & Surgical Sciences, University of Campania 'L. Vanvitelli', Naples, Italy. 2. Unit of Infectious and Transplant Medicine, AORN Ospedali Dei Colli-Monaldi Hospital, Piazzale Ettore Ruggieri, 80131, Naples, Italy. 3. Unit of Cardiac Surgery, AORN Ospedali Dei Colli-Monaldi Hospital, Naples, Italy. 4. Unit of Infectious and Transplant Medicine, AORN Ospedali Dei Colli-Monaldi Hospital, Piazzale Ettore Ruggieri, 80131, Naples, Italy. emanuele.durante@unicampania.it. 5. Department of Precision Medicine, University of Campania 'L. Vanvitelli', Naples, Italy. emanuele.durante@unicampania.it.
Abstract
PURPOSE: To explore the prognostic value and the correlates of NT-proBNP in patients with acute infective endocarditis, a life-threatening disease, with an often unpredictable outcome given by the lack of reliable prognostic parameters. METHODS: We retrospectively studied 337 patients admitted to our centre between January 1, 2006 and September 30, 2020 with available NT-proBNP level at admission. Our analyses were performed considering NT-proBNP as both a categorical variable, using the median value as the cut-off level, and numerical variable. Study end points were in-hospital mortality, cardiac surgery and 1 year survival. RESULTS: NT-proBNP was an independent predictor of in-hospital mortality (OR 14.9 [95%C.I. 2.46-90.9]; P = .003). Levels below 2926 pg/mL were highly predictive of a favorable in-hospital outcome (negative predictive value 96.6%). Patients with higher NT-proBNP levels showed a significantly lower survival rate at 1 year follow-up (log-rank P = .005). NT-proBNP was strongly associated with chronic kidney disease (P < .001) and significantly higher in patients with prior chronic heart failure (P = .001). NT-proBNP was tightly related to staphylococcal IE (P = .001) as well as with higher CRP and hs-troponin I (P = 0.023, P < .001, respectively). CONCLUSION: Our results confirm the remarkable prognostic role of NT-proBNP in patients with IE and provide novel evidences of its multifaceted correlates in this unique clinical setting. Our data strongly support the incorporation of NT-proBNP into the current diagnostic work-up of IE.
PURPOSE: To explore the prognostic value and the correlates of NT-proBNP in patients with acute infective endocarditis, a life-threatening disease, with an often unpredictable outcome given by the lack of reliable prognostic parameters. METHODS: We retrospectively studied 337 patients admitted to our centre between January 1, 2006 and September 30, 2020 with available NT-proBNP level at admission. Our analyses were performed considering NT-proBNP as both a categorical variable, using the median value as the cut-off level, and numerical variable. Study end points were in-hospital mortality, cardiac surgery and 1 year survival. RESULTS: NT-proBNP was an independent predictor of in-hospital mortality (OR 14.9 [95%C.I. 2.46-90.9]; P = .003). Levels below 2926 pg/mL were highly predictive of a favorable in-hospital outcome (negative predictive value 96.6%). Patients with higher NT-proBNP levels showed a significantly lower survival rate at 1 year follow-up (log-rank P = .005). NT-proBNP was strongly associated with chronic kidney disease (P < .001) and significantly higher in patients with prior chronic heart failure (P = .001). NT-proBNP was tightly related to staphylococcal IE (P = .001) as well as with higher CRP and hs-troponin I (P = 0.023, P < .001, respectively). CONCLUSION: Our results confirm the remarkable prognostic role of NT-proBNP in patients with IE and provide novel evidences of its multifaceted correlates in this unique clinical setting. Our data strongly support the incorporation of NT-proBNP into the current diagnostic work-up of IE.
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