Mortality in systemic lupus erythematosus: causes, predictors and interventions

Area of Science:

• Rheumatology
• Immunology
• Epidemiology

Background:

• Systemic lupus erythematosus (SLE) is a chronic autoimmune disease with significant organ damage and higher mortality than the general population.
• SLE mortality is multifactorial, influenced by epidemiological, sociodemographic, genetic, and clinical factors.
• Key mortality causes include disease activity, infections (especially bacterial), and cardiovascular complications.

Purpose of the Study:

• To review the epidemiology of SLE mortality.
• To identify main causes and predictors of mortality in SLE patients.
• To describe interventions aimed at reducing SLE mortality.

Main Methods:

• This is a narrative review.
• The review synthesizes information on SLE epidemiology, mortality causes, predictors, and interventions.
• Expert commentary is included.

Main Results:

• Lupus nephritis and neuropsychiatric lupus are major contributors to SLE mortality.
• Cardiovascular mortality is nearly double in SLE patients compared to matched controls.
• Predictors of mortality include delayed diagnosis (>1 year), renal involvement, high SLEDAI scores, and severe organ damage.
• African-American, Hispanic-American origin, low socioeconomic status, and male sex are associated with increased mortality.
• Despite advances, SLE mortality remains high.

Conclusions:

• Early diagnosis and immunosuppressive treatments are crucial but insufficient to eliminate high SLE mortality.
• Infections and cardiovascular events are significant mortality predictors.
• Development of precise prediction models is needed for timely interventions to improve SLE patient outcomes.