ArticlePediatric nephrology (Berlin, Germany)2025
The clinical characteristics of patients with congenital nephrotic syndrome secondary to NPHS1 mutation: Is nephrectomy still a therapeutic option for selected cases?
Article in Pediatric nephrology (Berlin, Germany), 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Not yet cited in PubMed.
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- Erratum issued
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15 authors.
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Abstract
backgroundManaging congenital nephrotic syndrome (CNS) remains a clinical challenge. While albumin infusions and nephrectomy have been long-standing treatments, a conservative approach is increasingly favored. This study aimed to compare clinical outcomes between nephrectomy (Nx) and non-Nx in patients with bi-allelic NPHS1 mutations.
methodsThis retrospective cohort study included 29 pediatric CNS patients (15 female, 14 male) with confirmed NPHS1 mutations. Clinical parameters including albumin infusion requirements, infections, hospitalizations, growth, and survival rates were analyzed in the Nx and non-Nx groups.
resultsThe median age at the time CNS was diagnosed was 29 days (IQR: 11-62 days). In all, 24 patients (82.8%) had homozygous NPHS1 mutations and 5 (17.2%) had compound heterozygous NPHS1 mutations. None of the patients had Fin-major mutation (i.e., p. Leu41 Aspfs*50). Unilateral/bilateral nephrectomy was performed in 16 patients. At 12 months post-nephrectomy the number of albumin infusions required, infections, and hospitalizations decreased significantly in the Nx group, as compared to the pre-nephrectomy period (p = 0.001, p = 0.027, and p = 0.004, respectively). Among the 13 (44.8%) patients in the non-Nx group, at 12 months after CNS was diagnosed the number of serum albumin infusions required significantly decreased (p = 0.007); however, the number of infections and hospitalization did not differ significantly (p = 0.589 and p = 0.5, respectively). Receiver operating characteristic (ROC) analysis showed that requiring albumin infusions ≥ 14 days/month predicted the decision to perform nephrectomy with 68% accuracy (73% sensitivity and 62% specificity).
conclusionsNephrectomy reduces albumin infusions, infections, and hospitalizations, suggesting it may be a beneficial treatment for selected CNS patients with NPHS1 mutations.
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