Journal
CLINICAL AND EXPERIMENTAL NEPHROLOGY
Volume 26, Issue 2, Pages 162-169Publisher
SPRINGER
DOI: 10.1007/s10157-021-02141-5
Keywords
Congenital nephrotic syndrome of the Finnish type (CNF); NPHS1; Intravenous albumin infusion; Central venous catheter (CVC); Unilateral nephrectomy; Bilateral nephrectomy
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Unilateral nephrectomy during early infancy may be an effective treatment for patients with CNF, allowing for reduction in albumin infusion, prevention of complications, and shorter hospital stays.
Background The management of congenital nephrotic syndrome of the Finnish type (CNF) is challenging. It is difficult to withdraw intravenous albumin infusions, resulting in long-term hospitalization. In addition, fatal hypotension after bilateral nephrectomy has been reported. In our center, we have performed unilateral nephrectomy during early infancy. Methods Infants diagnosed with CNF between 2011 and 2020 in our institution were enrolled. We examined the clinical course before and after unilateral nephrectomy and evaluated the effectiveness of this strategy. Results Seven patients (all showing NPHS1 mutations) were enrolled. All required daily intravenous albumin infusion via central venous catheter (CVC). Unilateral nephrectomy was performed at a median of 76 days of age (59-208 days). Surgical complications did not occur in any of patients. The mean albumin dose was decreased after unilateral nephrectomy (2.0 vs 0.4 g/kg/day; p = 0.02). Intravenous albumin infusion could be withdrawn at a median of 17 days, the CVC removed at a median of 21 days, and they discharged at a median of 82 days after unilateral nephrectomy. Although bacterial infections were noted seven times before unilateral nephrectomy, only one episode occurred after surgery. Four patients initiated peritoneal dialysis at two to three years of age and all of them underwent kidney transplantation thereafter. Conclusions Unilateral nephrectomy during early infancy may be an effective treatment allowing for withdrawal from albumin infusion, prevention of complications, withdrawal from CVCs and shortening hospital stay for patients with CNF.
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