Clinical outcomes of nephrocalcinosis in preschool-age children: association between nephrocalcinosis improvement and long-term kidney function

BackgroundWe evaluated the long-term clinical outcomes of nephrocalcinosis (NC) according to etiology and grade in preschool-age children with NC.MethodsWe retrospectively analyzed the clinical outcomes and disease grade of children with NC classified into three groups according to etiology: prematu...

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Main Authors: Hyun Ah Woo, Hyeonju Lee, Young Hun Choi, Jeesu Min, Hee Gyung Kang, Yo Han Ahn, Hyun Kyung Lee
Format: Article
Language:English
Published: Frontiers Media S.A. 2023-10-01
Series:Frontiers in Pediatrics
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/fped.2023.1214704/full
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author Hyun Ah Woo
Hyeonju Lee
Young Hun Choi
Jeesu Min
Hee Gyung Kang
Hee Gyung Kang
Hee Gyung Kang
Yo Han Ahn
Yo Han Ahn
Yo Han Ahn
Hyun Kyung Lee
author_facet Hyun Ah Woo
Hyeonju Lee
Young Hun Choi
Jeesu Min
Hee Gyung Kang
Hee Gyung Kang
Hee Gyung Kang
Yo Han Ahn
Yo Han Ahn
Yo Han Ahn
Hyun Kyung Lee
author_sort Hyun Ah Woo
collection DOAJ
description BackgroundWe evaluated the long-term clinical outcomes of nephrocalcinosis (NC) according to etiology and grade in preschool-age children with NC.MethodsWe retrospectively analyzed the clinical outcomes and disease grade of children with NC classified into three groups according to etiology: prematurity, tubular disorders, and others.ResultsOverall, 67 children were diagnosed with NC [median age, 0.76 years; interquartile range (IQR) 0.46–2.14 years]. The etiologies of NC included prematurity (28.4%), tubular disorders (25.4%), and others (46.3%). Moreover, 56 (83.6%) children were asymptomatic and diagnosed accidentally through kidney ultrasonography. Newly diagnosed underlying diseases were greater in the tubular disorders group than in the other two groups (P = 0.001). Significantly more newly diagnosed NCs were grade 3 than grade 1 (P = 0.003). The median estimated glomerular filtration rate (eGFR) changed from 96.1 (IQR 68.8–119.2) ml/min/1.72 m2 at diagnosis to 90.9 (IQR 76.4–106.4) ml/min/1.72 m2 at the last follow-up, without a significant difference (P = 0.096). Changes in the kidney function did not differ according to etiology. However, patients without improvement in NC grade showed a decrease in eGFR from 98.1 (IQR 71.1–132.9) to 87.4 (IQR 74.0–104.1) ml/min/1.73 m2 (P = 0.023), while patients with improved NC grade did not show any change in the kidney function.ConclusionsEarly recognition, especially in NC grade 3, can help uncover further diagnoses, such as tubular disorders. Long-term kidney function depends on whether the NC grade improves.
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spelling doaj.art-945074f90a0c41ce91a748641236fc9f2023-10-09T10:07:19ZengFrontiers Media S.A.Frontiers in Pediatrics2296-23602023-10-011110.3389/fped.2023.12147041214704Clinical outcomes of nephrocalcinosis in preschool-age children: association between nephrocalcinosis improvement and long-term kidney functionHyun Ah Woo0Hyeonju Lee1Young Hun Choi2Jeesu Min3Hee Gyung Kang4Hee Gyung Kang5Hee Gyung Kang6Yo Han Ahn7Yo Han Ahn8Yo Han Ahn9Hyun Kyung Lee10Department of Pediatrics, Seoul National University Children’s Hospital, Seoul, Republic of KoreaDepartment of Pediatrics, Seoul National University Children’s Hospital, Seoul, Republic of KoreaDepartment of Radiology, Seoul National University Hospital, Seoul, Republic of KoreaDepartment of Pediatrics, Chungnam National University Sejong Hospital, Sejong, Republic of KoreaDepartment of Pediatrics, Seoul National University Children’s Hospital, Seoul, Republic of KoreaDepartment of Pediatrics, Seoul National University College of Medicine, Seoul, Republic of KoreaKidney Research Institute, Seoul National University Medical Research Center, Seoul, Republic of KoreaDepartment of Pediatrics, Seoul National University Children’s Hospital, Seoul, Republic of KoreaDepartment of Pediatrics, Seoul National University College of Medicine, Seoul, Republic of KoreaKidney Research Institute, Seoul National University Medical Research Center, Seoul, Republic of KoreaDepartment of Pediatrics, Kangwon National University Children's Hospital, Chuncheon, Republic of KoreaBackgroundWe evaluated the long-term clinical outcomes of nephrocalcinosis (NC) according to etiology and grade in preschool-age children with NC.MethodsWe retrospectively analyzed the clinical outcomes and disease grade of children with NC classified into three groups according to etiology: prematurity, tubular disorders, and others.ResultsOverall, 67 children were diagnosed with NC [median age, 0.76 years; interquartile range (IQR) 0.46–2.14 years]. The etiologies of NC included prematurity (28.4%), tubular disorders (25.4%), and others (46.3%). Moreover, 56 (83.6%) children were asymptomatic and diagnosed accidentally through kidney ultrasonography. Newly diagnosed underlying diseases were greater in the tubular disorders group than in the other two groups (P = 0.001). Significantly more newly diagnosed NCs were grade 3 than grade 1 (P = 0.003). The median estimated glomerular filtration rate (eGFR) changed from 96.1 (IQR 68.8–119.2) ml/min/1.72 m2 at diagnosis to 90.9 (IQR 76.4–106.4) ml/min/1.72 m2 at the last follow-up, without a significant difference (P = 0.096). Changes in the kidney function did not differ according to etiology. However, patients without improvement in NC grade showed a decrease in eGFR from 98.1 (IQR 71.1–132.9) to 87.4 (IQR 74.0–104.1) ml/min/1.73 m2 (P = 0.023), while patients with improved NC grade did not show any change in the kidney function.ConclusionsEarly recognition, especially in NC grade 3, can help uncover further diagnoses, such as tubular disorders. Long-term kidney function depends on whether the NC grade improves.https://www.frontiersin.org/articles/10.3389/fped.2023.1214704/fullnephrocalcinosischildrenkidney functiontubular disorderspretermkidney ultrasonography
spellingShingle Hyun Ah Woo
Hyeonju Lee
Young Hun Choi
Jeesu Min
Hee Gyung Kang
Hee Gyung Kang
Hee Gyung Kang
Yo Han Ahn
Yo Han Ahn
Yo Han Ahn
Hyun Kyung Lee
Clinical outcomes of nephrocalcinosis in preschool-age children: association between nephrocalcinosis improvement and long-term kidney function
Frontiers in Pediatrics
nephrocalcinosis
children
kidney function
tubular disorders
preterm
kidney ultrasonography
title Clinical outcomes of nephrocalcinosis in preschool-age children: association between nephrocalcinosis improvement and long-term kidney function
title_full Clinical outcomes of nephrocalcinosis in preschool-age children: association between nephrocalcinosis improvement and long-term kidney function
title_fullStr Clinical outcomes of nephrocalcinosis in preschool-age children: association between nephrocalcinosis improvement and long-term kidney function
title_full_unstemmed Clinical outcomes of nephrocalcinosis in preschool-age children: association between nephrocalcinosis improvement and long-term kidney function
title_short Clinical outcomes of nephrocalcinosis in preschool-age children: association between nephrocalcinosis improvement and long-term kidney function
title_sort clinical outcomes of nephrocalcinosis in preschool age children association between nephrocalcinosis improvement and long term kidney function
topic nephrocalcinosis
children
kidney function
tubular disorders
preterm
kidney ultrasonography
url https://www.frontiersin.org/articles/10.3389/fped.2023.1214704/full
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