Revisiting Childhood-Onset Systemic Lupus Erythematosus

Childhood-onset systemic lupus erythematosus (cSLE) is a chronic autoimmune disease with a multisystemic involvement diagnosed during childhood. The disease is marked by the production of autoantibodies targeting self-antigens, often before symptoms emerge. The presentation, clinical course, and outcome vary significantly among patients with cSLE. The onset of cSLE can be at any age during childhood while a diagnosis of cSLE before the age of 5 years is rare and raises a suspicion of monogenic lupus. Childhood-onset systemic lupus erythematosus affects various organs and systems, most frequently presenting with mucocutaneous, musculoskeletal, renal, and neuropsychiatric manifestations. Multiple disease flares can be seen during the disease course. Childhood-onset systemic lupus erythematosus causes significant morbidity and mortality. Children and adolescents with cSLE show higher disease activity and damage, and more aggressive immunosuppressive treatments are needed compared to adult-onset SLE. Early diagnosis can be difficult due to the insidious onset with nonspecific symptoms. Disease activity and damage measures aim to ensure an accurate evaluation of disease status. A multidisciplinary approach and individualized disease management are important. Disease management is complex including the control of disease activity, the reduction of flares and damage, and a limitation of drug toxicity while improving the health-related quality of life in patients with cSLE.