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Asymptomatic haematuria and proteinuria: Renal pathology and clinical outcome in 54 children

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In a mass screening programme, 54 children with haematuria and proteinuria were detected and evaluated by clinical findings and renal histology. IgA glomerulonephritis (GN) occurred in 29 patients, diffuse mesangial proliferative GN (DPGN) in 16, membranous GN (MGN) in 4, membranoproliferative GN (MPGN) in 3, and focal segmental glomerular sclerosis (FSGS) was seen in 2. Of the 35 children with proteinuria less than or equal to 1 g/m2 per day, 21 with IgA GN and 14 with DPGN had only mild to moderate glomerular changes. None of these children had developed renal impairment after a mean period of 6.5 years (range 5–10 years). On the other hand, 8 children with IgA GN, 2 with DPGN, 4 with MGN, 3 with MPGN, and 2 with FSGS had proteinuria that exceeded 1 g/m2 per day. The biopsy specimens from these children showed moderate to severe glomerular changes, and 7 of these children had hypertension or renal impairment during the period of evaluation. This study suggests that a poor outcome correlates with the level of proteinuria and the severity of renal pathology in children with haematuria and proteinuria.

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Correspondence to Satoshi Hisano.

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Hisano, S., Ueda, K. Asymptomatic haematuria and proteinuria: Renal pathology and clinical outcome in 54 children. Pediatr Nephrol 3, 229–234 (1989). https://doi.org/10.1007/BF00858520

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Key words

  • Haematuria
  • Proteinuria
  • Glomerulonephritis
  • Renal failure
  • Epidemiology