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  • Title: Long-term treatment by ACE inhibitors and angiotensin receptor blockers in children with Alport syndrome.
    Author: Zhang Y, Wang F, Ding J, Zhang H, Liu X, Wang S, Xiao H, Yao Y, Liu J, Zhong X, Guan N, Su B, Wu G, Yu L.
    Journal: Pediatr Nephrol; 2016 Jan; 31(1):67-72. PubMed ID: 26248473.
    Abstract:
    BACKGROUND: The aim of this study was to analyze the long-term efficacy and safety of angiotensin-converting enzyme inhibitor (ACEi) and ACEi + angiotensin receptor blocker (ARB) treatments in a cohort of children with Alport syndrome (AS). METHODS: This was a respective review of 79 Chinese children with AS who received ACEi alone or combined ACEi + ARB therapy. RESULTS: The mean age of the pediatric patients with AS at onset of treatment was 8.6 ± 4.1 (range 1.5-16.3) years. The mean duration of follow-up was 2.5 ± 1.8 (range 0.5-7.8) years. For analysis, we separated the children into three groups according to proteinuria level before treatment, namely, <25, 25-50, and ≥50 mg/kg/day, respectively; after 1 year of treatment the proteinuria had decreased from 11.0 to 9.7 mg/kg/day, from 34.6 to 15.2 mg/kg/day, and from 73.0 to 50.0 mg/kg/day in each group, respectively. Proteinuria decreased significantly during the first 2 years of treatment and was stable from the third to fifth years of treatment. There was no statistically significant difference in the antiproteinuric effect of the ACEi and ACEi + ARB treatments in patients with severe or less severe mutations after 1 year of therapy. Five children stopped the ACEi + ARB treatment due to a decline in creatinine clearance. CONCLUSION: Our findings demonstrate that early and long-term ACEi and ARB treatments in children with AS is efficient and well tolerated. The antiproteinuric effect of ACEi and ARB is of equal value in children with severe and less severe mutations in the COL4An gene.
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