Height-Based Formula Predicting Renal Length in Korean Children derived from Technesium-99m Dimercaptosuccinic Acid Scan

Cho, Myung Hyun; Yoo, Ha Yeong; Kwak, Byung Ok; Park, Hye Won; Chung, Sochung; Kim, Soo Nyung; Son, Jae Sung; Kim, Kyo Sun

doi:10.3339/chikd.2015.19.2.131

Cited by 1 publication

(2 citation statements)

References 16 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In a study done by Mesrobian et al (1998), it was described that the renal growth in the first seven months of age is rapid [20]. Lee et al (2014) and Cho et al (2015) have documented that predicting the renal length of infants is relatively complicated compared to older children [3, 8]. The impact of the potential variables may not be uniform in the bi-phasic growth of kidney lengths.…”

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

Ultrasonographic length of morphologically-normal kidneys in children presented to a premier tertiary healthcare setting of Sri Lanka

Duminda¹,

Pathirana

Fernando

et al. 2019

BMC Nephrol

View full text Add to dashboard Cite

Background Accurate prediction of reference ranges of renal lengths facilitates clinical decision making. Currently a single renal-length-reference chart is used for both kidneys, which is solely based on the age of the child without adjusting for anthropometrics. Objective of the study is to assess the length of morphologically-normal kidneys ultrasonically and to build models to predict the renal lengths of children presenting at the Radiology Department of Lady Ridgeway Hospital for Children. Methods A descriptive cross sectional study was done among 424 children with 233 males and 191 females at the study setting. Study population included children undergoing abdominal ultrasound scans for indications not related to renal disease. Children with a family history of renal diseases or with morphologically-abnormal kidneys were excluded. Bipolar-lengths of kidneys, gender and anthropometrics were documented. Having tested for assumptions, Wilcoxon-signed rank test, Mann-Whitney U test and multiple linear regression were used. Results The mean (SD) bipor-length of right and left kidneys were 6.83 (1.43) and 7.05 (1.36) respectively ( p < 0.001). Age, height and weight were significantly correlated with the renal lengths ( p < 0.05). Until 16 months, there was a significant difference between the renal lengths between males and females ( P < 0.05). Yet the association with gender was not significant from 17 months and in overall. Until 16 months, the best linear-regression equation ( p < 0.001) for the left kidney was; 3.827 + 0.019(length in centimeters) + 0.141(weight in kilograms) - 0.023(age in months) - 0.347(for male sex). For the right kidney, it was; 3.888 + 0.020(length or height) + 0.121(weight) - 0.037(age) - 0.372 (for male sex). The respective R squares were 59.2 and 53.5% with VIF (Variance-Inflation-Factor) ranging from 1.06 to 2.08. From 17 months, best equation for left kidney (p < 0.001) was; 5.651+ 0.022(age) + 0.01(BMI). For right kidney it was; 5.336 + 0.022(age) + 0.012(BMI). The R squares were 62.5 and 66.1% with VIF being 1. Conclusions The established models explain more variability for children above 17 months. Both renal lengths are affected significant by the body’s’ anthropometric parameters. For each kidney, separate normograms of renal lengths which are local-context-specific must be prepared. Further research must be promoted. Electronic supplementary material The online version of this article (10.1186/s12882-019-1377-z) contains supplementary material, which is available to authorized users.

show abstract

Section: Discussionmentioning

confidence: 99%

“…Hence in the literature different regression models have been proposed for left and right kidneys [1, 2, 4]. In some instances, separate models have been developed for length predictions when different radiological modalities are used [8].…”

Section: Introductionmentioning

confidence: 99%