Psychiatric symptoms in systemic lupus erythematosus: an update

Area of Science:

• Rheumatology
• Psychiatry
• Clinical Psychology

Background:

• Systemic lupus erythematosus (SLE) is a chronic autoimmune disease with diverse clinical manifestations.
• Psychiatric symptoms are frequently reported in SLE patients, but their prevalence and nature vary widely across studies.
• Understanding the spectrum and contributing factors of psychiatric symptoms in SLE is crucial for patient care.

Purpose of the Study:

• To review and evaluate existing studies on the prevalence and types of psychiatric symptoms in SLE.
• To identify factors contributing to the variability in reported prevalence rates.
• To explore the relationship between psychiatric symptoms and disease characteristics, severity, and psychosocial factors in SLE.

Main Methods:

• Systematic review and evaluation of 21 studies focusing on psychiatric symptoms in SLE.
• Analysis of reported prevalence rates and types of psychiatric symptoms.
• Comparison of findings across studies, considering methodological differences, particularly assessment techniques.
• Examination of potential associations with SLE symptoms, illness severity, psychosocial stressors, and neurological dysfunction.
• Inclusion of control groups (e.g., rheumatoid arthritis patients) for comparative analysis.

Main Results:

• Reported prevalence of psychiatric symptoms in SLE patients ranges significantly from 17% to 71%.
• Differences in assessment techniques are the primary reason for the wide variability in reported prevalence.
• Depression is the most commonly observed psychiatric symptom in SLE.
• No consistent relationship was found between psychiatric symptoms and other SLE symptoms, but associations with perceived illness severity and psychosocial stressors were suggested.
• Control groups with other chronic diseases showed similar prevalence and types of psychiatric symptoms, indicating a potential shared etiology or non-specific disease impact.
• A small proportion of psychiatric symptoms, especially psychosis, may be linked to neurological dysfunction in SLE.

Conclusions:

• Methodological inconsistencies, particularly in assessment, significantly influence the reported prevalence of psychiatric symptoms in SLE.
• While depression is common, the overall psychiatric symptomatology in SLE appears largely similar to other chronic diseases, suggesting a complex interplay of factors.
• Neurological dysfunction in SLE may account for a subset of psychiatric manifestations, warranting further investigation.