Abstract | INTRODUCTION: Risk factors of renal involvement in Henoch-Schonlein nephritis (HSN) have been extensively studied, but their relations with the severity of glomerular lesions at the disease onset are much less known. MATERIALS AND METHODS: Data were collected retrospectively on 45 patients (age range, 2 to 15 years) with HSN to identify the initial clinical and laboratory features that most accurately correlate with histological findings. Nephritic syndrome was defined as hypertension, proteinuria, hematuria, and a creatinine clearance of 60 mL/min/1.73 m2 or less. Kidney biopsy findings were graded according to the International Study of Kidney Disease in Children classification for HSN. RESULTS:
Purpura was present in all the 45 children, arthritis in 73.3%, abdominal symptoms with or without bleeding in 68.6%, and a high serum IgA level in 24.4%. Hematuria was present in 88.6% of the patients, hematuria and proteinuria (not in nephrotic range) in 66.7%, nephrotic syndrome in 17.8%, acute nephritic syndrome in 8.9%, and nephritic- nephrotic syndrome in 13.3%. Grades II (33.3%) and III (22.2%) lesions were the most common pathologic findings on kidney biopsy followed by grades IV (17.8%), V (15.6%), and I (11.1%) lesions. Univariate analysis demonstrated that nephrotic syndrome, acute nephritic syndrome and a creatinine clearance less than 30 mL/min/1.73 m2 were all associated with a significantly increased risk of developing grades IV and/or V lesions. multivariate analysis showed nephritic- nephrotic syndrome as significant independent predictors of severity of glomerular disease at onset. CONCLUSIONS: The severity of renal symptoms at onset determines the intensity of glomerular lesions.
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Authors | Farahnak Assadi |
Journal | Iranian journal of kidney diseases
(Iran J Kidney Dis)
Vol. 3
Issue 1
Pg. 17-21
(Jan 2009)
ISSN: 1735-8582 [Print] Iran |
PMID | 19377254
(Publication Type: Journal Article)
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Topics |
- Adolescent
- Child
- Child, Preschool
- Cohort Studies
- Female
- Glomerular Filtration Rate
- Glomerulonephritis
(etiology, pathology)
- Humans
- IgA Vasculitis
(complications, pathology, physiopathology)
- Male
- Retrospective Studies
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