Haematological abnormalities in systemic lupus erythematosus

Area of Science:

• Rheumatology
• Hematology
• Internal Medicine

Background:

• Systemic Lupus Erythematosus (SLE) is a chronic autoimmune disease with diverse clinical manifestations.
• Hematological abnormalities (HA) are frequent in SLE, impacting disease course and patient outcomes.
• Understanding the prevalence and patterns of HA is crucial for effective SLE management.

Purpose of the Study:

• To determine the frequency and patterns of hematological abnormalities (HA) in SLE patients.
• To assess the changes in HA from diagnosis to the last follow-up.
• To investigate the association between specific HA and organ involvement in SLE.

Main Methods:

• Retrospective study of 624 SLE patients diagnosed and treated between 1982 and 2008.
• Data collection included demographic, hematological parameters, disease manifestations, and organ involvement.
• Multivariate analysis was used to explore the association between HA and organ involvement.

Main Results:

• Hematological abnormalities (HA) were present in 82.7% of SLE patients at diagnosis, most commonly anemia (63.0%), lymphopenia (40.3%), and leukopenia (30.0%).
• After a mean follow-up of 9.3 years, 67% of patients still exhibited HA, with anemia (51.7%) remaining most prevalent.
• Specific HA showed significant associations with organ involvement: leukopenia with oral ulcers/alopecia, anemia with renal disease, AIHA with neurological involvement, elevated IgG with malar rash, and low C3 with serositis.

Conclusions:

• Hematological abnormalities (HA) are highly prevalent in SLE patients at diagnosis and persist during follow-up.
• Certain HA are significantly associated with specific organ damage in SLE.
• These findings support the importance of monitoring HA for better management planning in SLE patients.