Systemic lupus erythematosus and pregnancy

Area of Science:

• Rheumatology
• Obstetrics
• Maternal-Fetal Medicine

Background:

• Systemic lupus erythematosus (SLE) is a chronic autoimmune disease that can affect multiple organ systems.
• Pregnancy in women with SLE presents unique challenges due to potential maternal and fetal complications.
• Understanding the impact of disease activity on pregnancy outcomes is crucial for patient management.

Purpose of the Study:

• To evaluate pregnancy outcomes in women with SLE.
• To assess the relationship between SLE disease activity at conception and pregnancy outcomes.
• To determine the risk of disease recurrence during pregnancy in SLE patients.

Main Methods:

• Retrospective review of 250 patients with SLE.
• Analysis of 24 pregnancies among 18 women.
• Categorization of pregnancies based on disease activity at conception and outcomes.

Main Results:

• Fetal loss (excluding therapeutic abortion) was 16.6% across 24 pregnancies.
• 13 patients had active SLE at conception; 11 remained active, 2 became inactive.
• 11 women had inactive SLE at conception; 10 remained inactive, indicating low recurrence risk.
• Inactive SLE at conception was not associated with disease recurrence, even with prior severe organ involvement.

Conclusions:

• Women with inactive SLE at conception have a favorable prognosis for both maternal and fetal outcomes.
• Maintaining inactive disease prior to conception is key to successful pregnancy in SLE patients.
• SLE patients with a history of renal or CNS involvement can have successful pregnancies if disease is inactive at conception.