Lupus nephritis and pregnancy.

Area of Science:

• Nephrology
• Obstetrics
• Rheumatology

Background:

• Lupus nephritis poses risks to both maternal and fetal health during pregnancy.
• Understanding risk factors is crucial for improving pregnancy outcomes in affected women.

Purpose of the Study:

• To analyze fetal and maternal outcomes in pregnancies complicated by lupus nephritis.
• To identify risk factors associated with poor pregnancy outcomes in this population.

Main Methods:

• Retrospective analysis of 64 pregnancies in 41 women with biopsy-proven lupus nephritis (1965-1991).
• Evaluation of fetal outcomes (loss, prematurity, birth weight) and maternal complications (renal function, hypertension, proteinuria).
• Comparison of outcomes based on diagnosis timing and presence of lupus anticoagulant.

Main Results:

• High rates of fetal loss (19% after 20 weeks) and prematurity (30%).
• Significant maternal complications including hypertension (44%) and increased proteinuria (48%).
• Pregnancies after glomerulonephritis diagnosis showed reduced maternal hypertension and proteinuria; lupus anticoagulant strongly correlated with fetal loss.

Conclusions:

• Pregnancy in lupus nephritis carries substantial risks for fetal and maternal health.
• Timely diagnosis of glomerulonephritis may mitigate some maternal complications.
• Lupus anticoagulant is a significant predictor of adverse fetal outcomes in lupus nephritis pregnancies.