Treatment of severe Henoch–Schönlein and immunoglobulin A nephritis. A single center experience
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Our aim was to report the effect of two treatment regimens in 43 cases of severe Henoch–Schönlein nephritis (HSN) and immunoglobulin A nephritis (IgAN) (24 HSN, 19 IgAN). Group A, 11 HSN and 7 IgAN, 88% with an International Study of Kidney Disease in Children (ISKDC) biopsy grade ≥ III and severe clinical features, were treated with corticosteroids, cyclophosphamide (CYC-P) and angiotensin-converting enzyme inhibitor/angiotensin receptor blocker (ACEi/ARB). Group B, 12 HSN and 13 IgAN, 72% with biopsy findings as above and 52% with severe clinical features, were treated with ACEi/ARB ± corticosteroids. The outcome classification was: (a) healthy; (b) mild proteinuria, normal glomerular filtration rate (GFR); (c) active renal disease; (d) chronic renal failure. Twenty-six patients had a good outcome (a + b). The 17 children with poor outcome (c + d) had lower GFR at onset and at follow-up, higher albumin excretion at follow-up, and higher percentage of segmental glomerulosclerosis in the renal biopsy, than those with good outcome. Treatment with corticosteroids, CYC-P and ACEi/ARB was effective in increasing GFR, reducing proteinuria and decreasing the disease activity index. The proteinuria had decreased at follow-up in both groups. In group A, GFR increased and histopathological activity index declined after treatment. The outcome did not differ between groups A and B. The effects of treatment did not differ between HSN and IgAN.
KeywordsMethylprednisolone Cyclophosphamide Renal biopsy findings Proteinuria Glomerular filtration rate Segmental glomerulosclerosis IgA nephritis Henoch–Schönlein nephritis
This study was financially supported by the Samariten Foundation, the Frimurarna Association, the Jerring Foundation and the Swedish Medical Research Council (no. 6864). Financial support was also provided through the regional agreement on medical training and clinical research (ALF) between Stockholm County Council and the Karolinska Institutet.
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