نبذة مختصرة : Background In children with Henoch-Schonlein purpura nephritis (HSPN), the degree of proteinuria has been proven to be not only a sign of kidney damage, but also an accelerator of kidney disease progression. Nephrotic proteinuria at disease onset has been proposed as a predictor of a poor renal outcome. This study aims to assess the clinical and pathological features of HSPN with nephrotic proteinuria in a single center. Methods One hundred thirty-seven patients with HSPN who visited Shanghai Children’s Hospital from January 2009 to December 2013 were retrospectively reviewed. The patients were divided into 2 groups based on the 24-h urinary protein levels: nephrotic proteinuria group (NP group: 24-h urinary protein ≥50 mg/kg) and non-nephrotic proteinuria group (NNP group: 24-h urinary protein 0.05). Conclusion The serum albumin and IgG levels of the NP group were significantly lower; however, their blood urea nitrogen and cystatin C levels were higher. The ISKDC grades were mainly above grade III. The prognosis of the NP group was associated with clinical classification and improved after a timely and early treatment.
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