Open AccessProteinuria from first-morning urine in a child due to brace treatment for adolescent idiopathic scoliosis
Author(s) -
Chiaki Murata,
Daisuke Matsuoka,
Tsubasa Murase,
J. Takahashi
Publication year - 2022
Publication title -
cen case reports
Language(s) - English
Resource type - Journals
ISSN - 2192-4449
DOI - 10.1007/s13730-022-00708-z
Subject(s) - proteinuria , urinalysis , medicine , asymptomatic , morning , urine , pediatrics , urinary system , kidney
A first-morning urine test for screening urinary protein is important for distinguishing whether asymptomatic proteinuria, which is a common finding in school-aged children, is caused due to kidney disease or not. We report the case of a 12-year-old Japanese girl who was referred to our pediatric department for asymptomatic proteinuria detected during a school urinary screening. Proteinuria was found only on the first-morning urinalysis and not on the routine urinalysis. The patient had been diagnosed with adolescent idiopathic scoliosis and treated with a nighttime brace. As excess protein was not detected on urinalysis of the first-morning urine sample that was collected after a night without the brace, proteinuria due to the brace treatment for scoliosis was diagnosed. The present case revealed that brace treatment can cause proteinuria. Even if a first-morning urine is positive for protein, an unexpected cause can trigger asymptomatic proteinuria in a growing child.