[Henoch-Schönlein nephritis with nephrotic syndrome during pregnancy]

We report a 33-year-old female with nephrotic syndrome associated with Henoch-Schönlein nephritis (HSN) during pregnancy. She presented purpura in the legs at 20 weeks in her third pregnancy. A biopsy of her purpuric skin lesion showed leukocytoclastic vasculitis. After a month she was admitted to Sapporo City General Hospital because of development of a nephrotic syndrome. She was treated with heparin as anticoagulants therapy and delivered of a healthy girl by Cesarean section at 34 weeks. Renal biopsy, carried out beyond a month after delivery, revealed diffuse proliferative glomerulonephritis with prominent IgA deposits, which made the diagnosis of HSN (grade III of classification of the renal histopathology of HSN from the International Study of Kidney Disease in Childhood). Prednisolone 40 mg, dipyridamole 300 mg per day and pulse doses of steroid were administrated. Two months later proteinuria was not detected. A sister of the patient had also Henoch-Schönlein Purpura in her childhood. They shared HLA DR 4, DQ 4 which are known to be associated with IgA nephropathy. Fifty percent of pregnant women with chronic glomerulonephritis shows increased proteinuria. Pregnancy may have influence on the increased proteinuria in this case.