Schönlein-Henoch syndrome in adults

Area of Science:

• Nephrology
• Rheumatology
• Immunology

Background:

• Schönlein-Henoch syndrome (SHS) is a systemic vasculitis characterized by purpura, arthritis, abdominal pain, and glomerulonephritis.
• Renal involvement is a common and serious complication of SHS, potentially leading to significant kidney damage.

Purpose of the Study:

• To investigate the clinical presentation and pathological findings of Schönlein-Henoch syndrome during its acute phase.
• To evaluate the role of immunoglobulin A (IgA) deposits in the pathogenesis of SHS-related kidney disease.
• To assess the efficacy of corticosteroid treatment in managing SHS symptoms and renal progression.

Main Methods:

• Prospective study of nine adult patients with acute Schönlein-Henoch syndrome.
• Clinical assessment including urinalysis and hematology.
• Kidney biopsy with histopathological examination and immunofluorescence for IgA deposits.

Main Results:

• All nine patients presented with typical purpuric rash and renal disease, including microscopic hematuria and proteinuria; five had red blood cell casts.
• Kidney biopsies revealed focal glomerulonephritis in seven patients and diffuse proliferative nephritis in two.
• Mesangial IgA deposits were identified in seven of eight biopsied patients, supporting an immune complex etiology.
• Diffuse proliferative lesions correlated with renal function loss, but no fatalities occurred.

Conclusions:

• Schönlein-Henoch syndrome frequently involves significant renal pathology, characterized by IgA immune complex deposition.
• Early corticosteroid therapy appears beneficial in alleviating SHS symptoms like arthralgia and abdominal pain.
• Corticosteroids may play a role in preventing the progression of renal disease in Schönlein-Henoch syndrome patients.