RT Journal Article T1 Evans syndrome in adults: an observational multicenter study A1 Fattizzo, Bruno A1 Michel, Marc A1 Alessandro Giannotta, Juri A1 Lund Hansen, Dennis A1 Arguello, Maria A1 Sutto, Emanuele A1 Bianchetti, Nicola A1 Patriarca, Andrea A1 Cantoni, Silvia A1 Eva Mingot-Castellano, Maria A1 McDonald, Vickie A1 Capecchi, Marco A1 Zaninoni, Anna A1 Consonni, Dario A1 Mathilde Vos, Josephine A1 Vianelli, Nicola A1 Chen, Frederick A1 Glenthoj, Andreas A1 Frederiksen, Henrik A1 Jose Gonzalez-Lopez, Tomas A1 Barcellini, Wilma K1 Thrombocytopenic purpura K1 Hemolytic-anemia K1 Itp AB Evans syndrome (ES) is a rare condition, defined as the presence of 2 autoimmune cytopenias, most frequently autoimmune hemolytic anemia and immune thrombocytopenia (ITP) and rarely autoimmune neutropenia. ES can be classified as primary or secondary to various conditions, including lymphoproliferative disorders, other systemic autoimmune diseases, and primary immunodeficiencies, particularly in children. In adult ES, little is known about clinical features, disease associations, and outcomes. In this retrospective international study, we analyzed 116 adult patients followed at 13 European tertiary centers, focusing on treatment requirements, occurrence of complications, and death. ES was secondary to or associated with underlying conditions in 24 cases (21%), mainly other autoimmune diseases and hematologic neoplasms. Bleeding occurred in 42% of patients, mainly low grade and at ITP onset. Almost all patients received first-line treatment (steroids with or without intravenous immunoglobulin), and 23% needed early additional therapy for primary refractoriness. Additional therapy lines included rituximab, splenectomy, immunosuppressants, thrombopoietin receptor agonists, and others, with response rates >80%. However, a remarkable number of relapses occurred, requiring >3 therapy lines in 54% of cases. Infections and thrombotic complications occurred in 33% and 21% of patients, respectively, mainly grade >= 3 and correlated with the number of therapy lines. In addition to age, other factors negatively affecting survival were severe anemia at onset and occurrence of relapse, infection, and thrombosis. These data show that adult ES is often severe and marked by a relapsing clinical course and potentially fatal complications, pinpointing the need for high clinical awareness, prompt therapy, and anti-infectious/anti-thrombotic prophylaxis. PB Elsevier SN 2473-9529 YR 2021 FD 2021-12-17 LK https://hdl.handle.net/10668/27462 UL https://hdl.handle.net/10668/27462 LA en DS RISalud RD Apr 10, 2025