Evans syndrome in adults: an observational multicenter study

Area of Science:

• Hematology
• Immunology
• Internal Medicine

Background:

• Evans syndrome (ES) involves two autoimmune cytopenias, commonly autoimmune hemolytic anemia and immune thrombocytopenia (ITP).
• Limited data exists on adult ES clinical features, associations, and outcomes.
• ES can be primary or secondary to other conditions, especially in children.

Purpose of the Study:

• To analyze clinical features, treatment requirements, complications, and outcomes in adult patients with Evans syndrome.
• To identify factors influencing survival in adult ES.

Main Methods:

• Retrospective international study involving 116 adult patients from 13 European tertiary centers.
• Data collection focused on treatment, complications (bleeding, infections, thrombosis), and mortality.
• Statistical analysis to identify factors affecting survival.

Main Results:

• ES was secondary in 21% of cases, associated with autoimmune diseases and hematologic neoplasms.
• Bleeding occurred in 42%, infections in 33%, and thrombotic complications in 21% of patients.
• High relapse rates (54% requiring ≥3 therapy lines) and significant complications were observed, correlating with therapy lines.

Conclusions:

• Adult ES is frequently severe, characterized by relapsing disease and life-threatening complications.
• Prompt diagnosis, effective treatment, and prophylactic measures against infections and thrombosis are crucial.
• Age, severe anemia, relapse, infection, and thrombosis negatively impact survival in adult ES.