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Profile of Acute Kidney Injury in Hospitalized Children with Idiopathic Nephrotic Syndrome. OBJECTIVE: To determine the incidence, risk factors and outcome of acute kidney injury (AKI) in hospitalized children with nephrotic syndrome. METHODS: All consecutive hospitalized children (aged 1-14 years) with diagnosis of nephrotic syndrome between February 2016 and February 2017 were enrolled for the study. Children (aged 1-14 years) with features of nephritis, underlying secondary causes of nephrotic syndrome as well as children admitted for diagnostic renal biopsy and intravenous cyclophosphamide or rituximab infusion were excluded. RESULTS: A total of 73 children (81 admissions) were enrolled; incidence of AKI was 16% (95% CI, 9-23). On multivariate logistic regression analysis, furosemide infusion was observed as an independent risk factor for acute kidney injury (OR 23; 95% CI, 3-141; P<0.001). Out of 13 children with AKI, three died. CONCLUSIONS: Acute kidney injury in hospitalized children with nephrotic syndrome has high risk of mortality. Children receiving furosemide infusion should be closely monitored for occurrence of acute kidney injury.