Liver dysfunction in patients with systemic lupus erythematosus

Area of Science:

• Rheumatology
• Hepatology
• Internal Medicine

Background:

• Systemic lupus erythematosus (SLE) is a chronic autoimmune disease with diverse clinical manifestations.
• Liver dysfunction is a recognized, though not fully understood, complication in SLE patients.
• Understanding the etiology and clinical features of liver dysfunction in SLE is crucial for patient management.

Purpose of the Study:

• To define the clinical characteristics and etiological factors of liver dysfunction in patients diagnosed with systemic lupus erythematosus (SLE).

Main Methods:

• A cohort of 206 patients with SLE was analyzed.
• The frequency, causes, and clinical patterns of liver dysfunction were systematically examined.
• Laboratory values (aminotransferase, alkaline phosphatase, gamma-glutamyl transpeptidase) and clinical associations were assessed.

Main Results:

• Liver dysfunction was observed in 59.7% of SLE patients.
• Common causes included drug-induced liver injury (30.9%), SLE itself (28.5%), and fatty liver (17.9%).
• Autoimmune hepatitis (AIH) was associated with more severe liver dysfunction and elevated liver enzymes (ALT, ALP, GGT).
• Liver dysfunction was present at SLE onset in 45.5% of affected patients.

Conclusions:

• Liver dysfunction in SLE is multifactorial, with drugs and SLE activity being primary causes, especially at disease onset.
• Autoimmune hepatitis should be suspected in cases of severe liver dysfunction in SLE patients.
• Neurological involvement was more frequent in SLE patients with liver dysfunction.