title: Aetiology of nephrolithiasis in north Indian children.
abstract: The aetiology of nephrolithiasis was investigated in 32 north Indian children (25 boys, 7 girls, mean age 7.9 +/- 3.3 years). An underlying disorder was detected in 16 (50%) patients and included idiopathic hypercalciuria (8 patients), hyperoxaluria (3 patients) and renal tubular acidosis, primary hyperparathyroidism and hyperuricosuria (1 patient each). Magnesium ammonium phosphate calculi were found in 2 patients with recurrent urinary tract infections, 1 of whom had a duplex pelvic collecting system. In 16 patients (50%) a cause for renal calculi was not identified. Our findings suggest that an underlying disorder is present in a large proportion of children with nephrolithiasis where appropriate treatment may be beneficial.
authors.affiliation: Department of Paediatrics, All India Institute of Medical Sciences, New Delhi, India.
authors.forename: P
authors.initials: P
authors.lastname: Hari
authors.forename: A
authors.initials: A
authors.lastname: Bagga
authors.forename: V
authors.initials: V
authors.lastname: Vasudev
authors.forename: M
authors.initials: M
authors.lastname: Singh
authors.forename: R N
authors.initials: RN
authors.lastname: Srivastava
mesh_terms: D002118:Calcium / Q000652:urine; D002128:Calcium Metabolism Disorders / Q000209:etiology / Q000652:urine; D002648:Child; D002675:Child, Preschool; D003404:Creatinine / Q000652:urine; D005260:Female; D006801:Humans; D007194:India; D007669:Kidney Calculi / Q000209:etiology* / Q000652:urine; D008297:Male
chemical_list: D003404:Creatinine; D002118:Calcium