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Original Article
Cardiology
Echocardiographic reference z scores of right ventricular dimension and systolic function of children aged 5–12 years
Alaba Busola Oladimeji, Moriam Omolola Lamina, Peter Odion Ubuane, Motunrayo Oluwabukola Adekunle, Omolara Adeolu Kehinde, Barakat Adeola Animasahun, Olisamedua FidelisNjokanma
Clin Exp Pediatr. 2023;66(5):215-222.   Published online April 18, 2023
Question: Z score reference values for right ventricular size and systolic function in children using echocardiography are available in several countries. Despite the high burden of diseases involving the right ventricle in Nigeria, these reference values have limited applicability.
Finding: The right ventricular sizes of Nigerian children differed from those published elsewhere.
Meaning: These reference values will aid the treatment, monitoring, and pre- and postintervention for Nigerian children.
General Pediatrics
Reference values of lead in blood and related factors among Korean adolescents: the Korean National Health and Nutrition Examination Survey 2010-2013
Min-Gyu Choi, Mi-Jung Park, Shin-Hye Kim
Clin Exp Pediatr. 2016;59(3):114-119.   Published online March 31, 2016
Purpose

This study aimed to assess the reference values and factors influencing blood lead levels among Korean adolescents.

Methods

The study population consisted of 1,585 adolescents (801 males, 784 females; aged 10-19 years) who participated in the Korea National Health and Nutrition Examination Survey 2010-2013. We analyzed blood lead concentrations in relation to demographic/lifestyle characteristics for all participants. "Reference values" of blood lead...

A study on the measurement of the nucleated red blood cell (nRBC) count based on birth weight and its correlation with perinatal prognosis in infants with very low birth weights
Tae Hwan Kil, Ji Yeon Han, Jun Bum Kim, Gyeong Ok Ko, Young Hyeok Lee, Kil Young Kim, Jae Woo Lim
Clin Exp Pediatr. 2011;54(2):69-78.   Published online February 28, 2011
Purpose

The aim of this study was conducted to investigate the mean nRBC count in very low births weight infants (VLBWIs) and to determine the usefulness of the nRBC as an independent prognostic factors of perinatal complications in VLBWIs.

Methods

This study was conducted on 112 VLBWIs who were hospitalized in the neonatal intensive care unit (NICU) of the author's hospital within the...

Reference values for respiratory system impedance using impulse oscillometry in healthy preschool children
Jye Hae Park, Jung Won Yoon, Youn Ho Shin, Hye Mi Jee, Young Sun Wee, Sun Jung Chang, Jung Hwa Sim, Hye Yung Yum, Man Yong Han
Clin Exp Pediatr. 2011;54(2):64-68.   Published online February 28, 2011
Purpose

The normal values for lung resistance and lung capacity of children, as determined by impulse oscillometry (IOS), are different for children of different ethnicities. However, reference values there is no available reference value for Korean preschool children have yet to be determined. The aim of the present study was to determine the normal ranges of IOS parameters in Korean preschool...

Preliminary analysis of metabolic syndrome components in Korean adolescents by using Korean national health and nutrition examination Survey pooling data (1998, 2001, and 2005)
Kyoung Huh, Mi Jung Park
Clin Exp Pediatr. 2008;51(12):1300-1309.   Published online December 15, 2008
Purpose : This study aimed to estimate age- and gender-specific cut points for metabolic syndrome (MS) components, including body mass index (BMI), blood pressure (BP), triglycerides, high-density lipoprotein (HDL) cholesterol, and glucose. Methods : Data from the 1998, 2001, and 2005 Korean NHANES (National Health and Nutrition Examination Survey) were analyzed (n=4164; 2,139 boys and 2,025 girls, aged 10-19 years)....
Normative data of penile length in Korean newborns
Sang Yeob Kim, Jae Sung Jun, Sang Geel Lee
Clin Exp Pediatr. 2008;51(9):944-949.   Published online September 15, 2008
Purpose : As modern society has became more open, interest in healthy internal and external growth has increased, including that pertaining to penile length in children. A micropenis is defined as one where penile length is more than 2 SD (standard deviation) below the mean, and it can be traced back to chromosome and endocrine disorders. The authors executed this...
Normal antistreptolysin O titers of children by age group in the Gyeonggi-Incheon region
Jihun Lee, Yoo Jung Kim, Joong Hyun Bin, Ja Young Hwang, Seong Hoon Hahn, So Young Kim, Hyun Hee Kim, Wonbae Lee
Clin Exp Pediatr. 2007;50(10):965-969.   Published online October 15, 2007
Purpose : Measurement of antistreptolysin O (ASO) is often necessary to confirm a clinical diagnosis of recent streptococcal infection, especially in patients suspected of rheumatic fever and acute glomerulonephritis. Standard normal ranges for ASO should be established locally for each age group. We analyzed ASO to determine the upper limit of normal (ULN) ASO in children in the Gyeonggi-Incheon area. Methods...
Reference values for respiratory system impedance using impulse oscillometry in school-aged children in Korea
Young Sun Wee, Hyoung Yun Kim, Da Wun Jung, Hye Won Park, Yoon Ho Shin, Man Yong Han
Clin Exp Pediatr. 2007;50(9):862-867.   Published online September 15, 2007
Purpose : The impulse oscillometry (IOS) is applicable to young children because it requires minimal cooperation and a non-invasive method to measure the mechanics of respiratory system. This study aimed to develop the reference values in school-aged children in Korea, using IOS which is a modification of forced oscillation technique (FOT). Methods : Measurements were performed in 92 previously untrained healthy...
Trace element concentrations profiles in the hair of normal children living in the northern area of Seoul
Ji Won Kwon, Byung Eui Kim, Mi Jung Park, Sang Woo Kim
Clin Exp Pediatr. 2006;49(1):18-23.   Published online January 15, 2006
Purpose : The reliability of hair mineral analyses regarding nutritional status, environmental exposure or diseases is controversial. The aim of this study was to determine the normal reference range of hair mineral concentration of Korean children. Methods : We examined hair mineral concentrations of 223 children(3-12 yrs old, 110 boys, 113 girls, mean age 8.8?.2 yrs old) living in the...
Quantitative Assessment of Myocardial Tissue Velocity in Normal Children with Doppler Tissue Imaging : Reference Values, Growth and Heart Rate Related Change
Se Young Kim, Myung Chul Hyun, Sang Bum Lee
Clin Exp Pediatr. 2005;48(8):846-856.   Published online August 15, 2005
Purpose : To measure the peak myocardial tissue velocities and patterns of longitudinal motion of atrioventricular(AV) annuli and assess body weight and heart rates-related changes in normal children. Methods : Using pulsed wave Tissue Doppler Imaging(TDI), we measurpeak systolic, early and late diastolic myocardial velocities in 72 normal children at six different sites in apical-4 chamber (A4C) view and at...
Accuracy of References in Journal of the Korean Pediatric Society and Journals of the Korean Pediatric Subspecialty Societies and Citation Pattern Analysis
Gil Ho Cho, Mi Kyung Lee, Man Yong Han, Young Rae Kim, Seo Jung Kim, Kyu Hyung Lee
Clin Exp Pediatr. 2002;45(11):1325-1331.   Published online November 15, 2002
Purpose : We tried to check the accuracy of references in the Journal of the Korean Pediatric Society and Journals of the Korean Pediatric Subspecialty Societies. We also wanted to know the citation patterns of authors by analyzing the frequency of cited materials. Methods : Three journals were randomly selected from the 2000 issues of Journal of the Korean Pediatric Society...
Quantification of Age-related Reference Values for Urinary Organic Acids in the Healthy Korean Population
Yong Jae Choi, In Cheol Kim, You Kyoung Choi, Hong Jin Lee, Bong Sung Kim, Won Il Park, Kyoung Ja Lee, T. Giudic, M. Blaskovics
Clin Exp Pediatr. 2001;44(12):1413-1423.   Published online December 15, 2001
Purpose : For the accurate diagnosis of organic acidopathies, quantification of urinary organic acid should be done and we should know the normal ranges of each organic acid excreted in the urine. The amount of organic acids excreted in the urine shows wide variability according to ethnic group, diet and age. We have quantified 82 organic acids to make a Korean reference value. Methods...
Hematologic Reference Values of Peripheral Blood in Healthy Newborns and Infants.
Nam Hyuk Joo, Hong Ja Kang, Soon Ho Kim
Clin Exp Pediatr. 1990;33(4):481-490.   Published online April 30, 1990
To estimate hematologic reference values of the peripheral blood of newnboms and infants, the author examined the routine hematologic parameters by heel or finger puncture in 73 cases of first day newborn, 64 cases of 7 day newborns, 10 cases of 2 month infants, 14 cases of 3~6 month infants and 13 cases of 15~18 month children. The routine hematologic parameters including red cell...