• Min-Su Oh, Geol Hwang, Sanghoon Han, Hyun Sik Kang, Seung Hyo Kim, Young Don Kim, Ki-Soo Kang, Kyung-Sue Shin, Mu Sook Lee, Guk Myung Choi, and Kyoung Hee Han.
• Department of Pediatrics, Jeju National University Hospital, Jeju, Korea .
• J. Korean Med. Sci. 2016 Jul 1; 31 (7): 108910931089-93.

AbstractKidney length is the most useful parameter for clinical measurement of kidney size, and is useful to distinguish acute kidney injury from chronic kidney disease. In this prospective observational study of 437 normal children aged between 0 and < 13 years, kidney length was measured using sonography. There were good correlations between kidney length and somatic values, including age, weight, height, and body surface area. The rapid growth of height during the first 2 years of life was intimately associated with a similar increase in kidney length, suggesting that height should be considered an important factor correlating with kidney length. Based on our findings, the following regression equation for the reference values of bilateral kidney length for Korean children was obtained: kidney length of the right kidney (cm) = 0.051 × height (cm) + 2.102; kidney length of the left kidney (cm) = 0.051 × height (cm) + 2.280. This equation may aid in the diagnosis of various kidney disorders.

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