• C Balmelli, R Laux-End, D Di Rocco, M I Carvajal-Busslinger, and M G Bianchetti.
• Medizinische Universitätskinderklinik, Inselspital Bern.
• Swiss Med Wkly. 1996 Feb 24; 126 (8): 293-8.

AbstractWe evaluated the records of 139 pediatric patients with Schönlein-Henoch purpura (aged 0.4 to 15.1 years, median 5.4 years), referred from 1974 to 1993 to the University Children's Hospital, Berne. An acute febrile illness preceded Henoch-Schönlein purpura in 83 (60%) out of the 139 children. The purpuric papules were distributed over the lower extremities and the buttocks in 68 patients (49%), and more extensively in the remaining 71 (51%). Joint tenderness or swelling was observed in 110 patients (79%). Abdominal involvement occurred in 92 patients (66%): abdominal pain (n = 63), melena or hematemesis (n = 23), and intussusception (n = 6). The following rather rare features were observed: scrotal swelling (n = 11), neurologic involvement (n = 3), and stenosing ureteritis (n = 1). A remission lasting at least 4 weeks occurred within 4 weeks in 84, within 5-8 weeks in 19, and within 9-53 weeks in 18 out of 121 patients. A relapse was observed in 10 subjects. Renal involvement occurred in 60 patients. Severe renal involvement, defined as proteinuria exceeding 40 mg/[m2 X h], occurred in 18 of the patients with renal involvement. Progredient renal failure developed in one male. Children with renal involvement tended to be older (6.6 versus 4.1 years) and to have more prolonged extrarenal manifestations (6 versus 3 weeks). It is concluded that in children with Schönlein-Henoch purpura extrarenal involvement often lasts more than one month. Its outcome is almost always favourable. Children with heavy proteinuria tend in some cases to develop renal failure. For these patients, new treatment regimens aimed at preventing renal failure warrant evaluation in prospective controlled studies.

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