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Original Article
Developmental and Behavioral Medicine
Development of the Korean Developmental Screening Test for Infants and Children (K-DST)
Hee Jung Chung, Donghwa Yang, Gun-Ha Kim, Sung Koo Kim, Seoung Woo Kim, Young Key Kim, Young Ah Kim, Joon Sik Kim, Jin Kyung Kim, Cheongtag Kim, In-Kyung Sung, Son Moon Shin, Kyung Ja Oh, Hee-Jeong Yoo, Hee Joon Yu, Seoung-Joon Lim, Jeehun Lee, Hae-Ik Jeong, Jieun Choi, Jeong-Yi Kwon, Baik-Lin Eun
Clin Exp Pediatr. 2020;63(11):438-446.   Published online May 14, 2020
Question: Can the Korean Developmental Screening Test for Infants and Children (K-DST) be a useful screening tool for infants and children in Korea?
Finding: The K-DST has high reliability (internal consistency of 0.73–0.93, test-retest reliability of 0.77–0.88) and a high discriminatory ability with a sensitivity of 0.833 and specificity of 0.979.
Meaning: The K-DST is an effective and reliable screening tool for infants and children with neurodevelopmental disorders in Korea.
Neonatology (Perinatology)
Long-term cognitive, executive, and behavioral outcomes of moderate and late preterm at school age
Ju Hyun Jin, Shin Won Yoon, Jungeun Song, Seong Woo Kim, Hee Jung Chung
Clin Exp Pediatr. 2020;63(6):219-225.   Published online September 25, 2019
Question: Infants born at moderate to late preterm gestations are known to have little problem later on, but is that really true?
Finding: At school age, cognitive problem was observed in about a quarter of the children. In addition, more than half of the children was suspected of having attention problems.
Meaning: Moderate to late preterm infants are at risk of developing abnormal intelligence and attention problems at early school age, therefore they should not be neglected on longterm follow-up evaluation.
Characteristics of late-onset epilepsy and EEG findings in children with autism spectrum disorders
Haneul Lee, Hoon Chul Kang, Seung Woo Kim, Young Key Kim, Hee Jung Chung
Clin Exp Pediatr. 2011;54(1):22-28.   Published online January 31, 2011

To investigate the clinical characteristics of late-onset epilepsy combined with autism spectrum disorder (ASD), and the relationship between certain types of electroencephalography (EEG) abnormalities in ASD and associated neuropsychological problems.


Thirty patients diagnosed with ASD in early childhood and later developed clinical seizures were reviewed retrospectively. First, the clinical characteristics, language and behavioral regression, and EEG findings of these late-onset epilepsy...

One-year evaluation of the national health screening program for infants and children in Korea
Jin Soo Moon, Soon Young Lee, Baik-Lin Eun, Young Key Kim, Young Key Kim, Son Moon Shin, Hea Kyoung Lee, Hee Jung Chung
Clin Exp Pediatr. 2010;53(3):307-313.   Published online March 15, 2010

Purpose:Results of the Korea National Health Screening Program for Infants and Children, which was launched in November 2007, were evaluated for future research and policy development. Methods:Data from a total of 2,729,340 cases were analyzed. Five visiting ages, such as 4, 9, 18, 30, and 60 months, were included. Several parameters such as stunting, obesity, and positive rate of developmental...
The current child and adolescent health screening system: an assessment and proposal for an early and periodic check-up program
Baik-Lin Eun, Jin Soo Moon, So-Hee Eun, Hea Kyoung Lee, Son Moon Shin, In Kyung Sung, Hee Jung Chung
Clin Exp Pediatr. 2010;53(3):300-306.   Published online March 15, 2010
Purpose : Recent changes in the population structure of Korea, such as rapid decline in birth rate and exponential increase in old-aged people, prompted us to prepare a new health improvement program in children and adolescents. Methods : We reviewed current health screenings applied for children and adolescents in Korea and other developed countries. We collected and reviewed population-based data...
Review Article
Diagnosis of neonatal seizures
Hee Jung Chung, Yun Jung Hur
Clin Exp Pediatr. 2009;52(9):964-970.   Published online September 15, 2009
Neonatal seizures are generally not only brief and subtle but also not easily recognized and are usually untreated. In sick neonates, seizures are frequently not manifested clinically but are detected only by electroencephalography (subclinical EEG seizures). This phenomenon of electroclinical dissociation is fairly common in neonates. On the other hand, neonates frequently show clinical behaviors such as stiffening, apnea, or...
Case Report
A case of acute aseptic meningitis associated with herpes zoster
Myong A Kim, Rita Miyoung Yu, Kee Hyuck Kim, Hee Jung Chung
Clin Exp Pediatr. 2009;52(6):705-709.   Published online June 15, 2009
Herpes zoster is caused by the varicella-zoster virus (VZV), which affects nerve ganglions. VZV infection may be associated with neurologic complications, which are usually observed after vesicular exanthem. Acute aseptic meningitis is a rare complication of VZV reactivation. We report the case of a previously healthy 14-year-old boy who suffered from aseptic meningitis that was attributed to reactivated VZV infection...
Original Article
Multicenter clinical study of childhood periodic syndromes that are common precursors to migraine using new criteria of the International Classification of Headache Disorders (ICHD-II)
Jae Yong Park, Sang-Ook Nam, So-Hee Eun, Su Jeong You, Hoon-Chul Kang, Baik-Lin Eun, Hee Jung Chung
Clin Exp Pediatr. 2009;52(5):557-566.   Published online May 15, 2009
Purpose : To evaluate the clinical features and characteristics of childhood periodic syndromes (CPS) in Korea using the new criteria of the International Classification of Headache Disorders (ICHD)-II. Methods : The study was conducted at pediatric neurology clinics of five urban tertiary-care medical centers in Korea from January 2006 to December 2007. Patients (44 consecutive children and adolescents) were divided into...
Review Article
Speech and language disorders in children
Hee Jung Chung
Clin Exp Pediatr. 2008;51(9):922-934.   Published online September 15, 2008
Developmental language disorder is the most common developmental disability in childhood, occurring in 5-8% of preschool children. Children learn language in early childhood, and later they use language to learn. Children with language disorders are at increased risk for difficulties with reading and written language when they enter school. These problems often persist through adolescence or adulthood. Early intervention may...
Overview of the national health screening program for infant and children
Baik-Lin Eun, Seong Woo Kim, Young Key Kim, Jung Wook Kim, Jin Soo Moon, Su Kyung Park, In Kyung Sung, Son Moon Shin, Sun Mi Yoo, So Hee Eun, Hea Kyoung Lee, Hyun Taek Lim, Hee Jung Chung
Clin Exp Pediatr. 2008;51(3):225-232.   Published online March 15, 2008
The mission of National Health Screening Program for Infant and Children is to promote and improve the health, education, and well-being of infants, children, families, and communities. Although the term 'diagnosis' usually relates to pathology, a similar diagnostic approach applies to the child seen primarily for health supervision. In the case of health, diagnosis determines the selection of appropriate health...
Neurobiological basis for learning disorders with a special emphasis on reading disorders
Hee Jung Chung
Clin Exp Pediatr. 2006;49(4):341-353.   Published online April 15, 2006
Learning disorders are diagnosed when the individual's achievement on standardized tests in reading, mathematics, or written expression is substantially below that expected for age, schooling, and level of intelligence. Subtypes of learning disorders may be classified into two groups, language-based type learning disorders including reading and writing disorder, and nonverbal type learning disorder (NLD) such as those relating to mathematics...
Medical Lecture Course
Developmental Disabilities in Children
Hee Jung Chung
Clin Exp Pediatr. 2004;47(2):131-139.   Published online February 15, 2004
Despite the 5-10% prevalence of developmental disability, the early identification for such problems remains difficult. Pediatricians tried to diagnose developmental delay early to promote early intervention and thus to reduce long-term disability in these patients. Identification of a delayed young child by routine pediatric screening mandates a careful search for an underlying etiology. Accurate etiologic determination, despite the fact that...
Original Article
Heart Rate Variability and Autonomic Activity in Patients Affected with Rett Syndrome
Deok Young Choi, Jin Ha Chang, Hee Jung Chung
Clin Exp Pediatr. 2003;46(10):996-1002.   Published online October 15, 2003
Purpose : In Rett syndrome patients, the incidence of sudden death is greater than that of the general population, and cardiac electrical instability including fatal cardiac arrhythmia is a main suspected cause. In this study, we are going to find out the possible cause of the higher risk of sudden death in Rett patients by the evaluation of heart rate...
Case Report
A Case of Polio-like Encephalomyelitis Associated with Enterovirus 71 Infection
Hyun Kyung Roh, Hee Jung Chung, Young Mee Jee, Doo Sung Cheon
Clin Exp Pediatr. 2001;44(11):1305-1310.   Published online November 15, 2001
Enterovirus 71(EV71), like polioviruses, invades the central nervous system to give rise to aseptic meningitis, encephalitis or myelitis. EV71 was first isolated in California in 1969 from a 9-month- old infant with encephalitis. Since then it has been isolated from the brain of children who died of encephalitis and from feces of patients with meningitis, encephalitis or paralysis. Related strains...
Five Cases of Prader-Willi or Angelman Syndrome Diagnosed by FISH in Neonate and Infancy
Hee Jung Chung, Young Rae Kim, Man Yong Han, Sook Hwan Lee
Clin Exp Pediatr. 2000;43(3):417-422.   Published online March 15, 2000
The Prader-Willi syndrome(PWS) and Angelman syndrome(AS) are clinically distinct syndromes with a shared cytogenetic deletion of chromosome 15q11q13 in most patients. Currently the diagnosis of PWS/AS is clinically suspected and can be confirmed by genetic laboratory tests. However, their diagnosis remains difficult in neonates and early infants because many features of the syndromes change with age and the typical features...
Fragile X Syndrome : Clinical Characteristics and EEG Findings
Hee Jung Chung, Kwang Eun Cha, Sook Hwan Lee
Accepted January 1, 1970  
Purpose : Fragile X syndrome is an X-llinked genetic disorder and is characterized by mental retardation, learning disability, behavior disorder, and autism with typical elongated face, large ears, and macro-orchidism. Recent reports have focused attention on the EEG finding of this syndrome, which is a particular paroxysmal pattern during sleep(mono or diphasic centrotemporal spikes) and awake state(background slowing). In this study, we analyzed the clinical...
Original Article
Periventricular Leukomalacia: Electroencephalographic Features and Neurodevelopmental Outcome
Hee Jung Chung, Young Rae Kim, Mun Chul Kim
Clin Exp Pediatr. 1996;39(4):530-542.   Published online April 15, 1996
Purpose : Periventricular leukomalacia(PVL) is associated with the characteristic neurologic sequale of spastic diplegia or quadriplegia, and cortical blindness. So early diagnosis of PVL in the neonatal period is of importance because of the prognostic implications of this lesion. Novotny et al reported that Positive Rolandic Sharp waves(PRS) on the EEGs was a marker of PVL because most infants who...
A Clinical Study of Histiocytosis in Childhood.
Hee Jung Chung, Byung Soo Kim, Chan Il Park
Clin Exp Pediatr. 1984;27(3):253-264.   Published online March 31, 1984
A clinical study with particular emphasis on the result of chemotherapy has been made on. 34 cases of histiocytosis diagnosed at the Department of the Severance Hospital and Yonsei Cancer Center from January 1975 to December 1981. The results may be summarized as follows: 1) Among histiocytosis, HSC and LSD were each present in elevent cases, E-G in seven and HMR...
A Clinical Investigation on 10 Patients of Tuberous Sclerosis.
Hee Jung Chung, Myung Jin Kim, Chang Jun Coe
Clin Exp Pediatr. 1983;26(4):373-379.   Published online April 30, 1983
We reviewed 10 cases of Tuberous sclerosis clinically during the last 2 years from March 1980 to June 1982 and the following conclusion was obtained: 1) The younger children may have cafe au lait spots and depimentation with seizure and psychomotor retardation as the diagnostic clues, while the older one may have Adenoma sebaceum. 2) Computerized tomography of brain is essential for diagnosis as it discloses...
Case Report
A Case of Acardi's Syndrome.
Bok Lyun Park, Hee Jung Chung, Chang Joon Coe, Young Sook Seo
Clin Exp Pediatr. 1982;25(12):1285-1288.   Published online December 31, 1982
A case of Aicardi’s syndrome is experienced at the Department of Pediatrics, College of Medicine, Yonsei University recently. This patient was 50 days of female infant, who had infantile spasm, and her development was deteriorated recently. Her CT scan showed partial absence of corpus callosum and whose EEG was a pattern of modified hypsarrhythmia limited only on left hmisphere. She also had hemivertebra at...
A Case of Acute Fulminant Hepatitis Induced by Herpesvirus Hominus.
Hee Jung Chung, Ki Sup Chung, Duk Jin Yun, Jung Sook Kim
Clin Exp Pediatr. 1982;25(6):616-621.   Published online June 30, 1982
We have experienced a case with acute fulminant hepatitis induced by Herpesvirus homin-us. The patient, 11day-old male baby, was admitted with the chief complaints of poor sucking and jaundice for 3 days duration. On adimission, we performed bacterial cultures, liver function tests, blood coagulation test, TORCH study and routine hematologic studies. During these studies, bleeding tendency was n-oticed at the...
Original Article
Hashimoto's Thyroiditis in childhood.
Hee Jung Chung, Back Keun Lim, Duk Hi Kim, Duk Jin Yun, Chan Il Park
Clin Exp Pediatr. 1981;24(8):752-759.   Published online August 15, 1981
Serum levels of T3, T4, TSH, 24-h RAIU and Thyroid antibodies were examined in 13 cases of chronic lymphocytic thyroiditis who were diagnosed at the pediatric department of Yonsei University hospital during the period from 1978 to 1980. The results were as follows: 1. The age distribution was dispersed between 8 and 15 years of age and all the cases...
Case Report
A Case of Rt. Renal Agenesis Combined with Cryptorchism and Neuroblastoma.
Hee Jung Chung, Chul Lee, Pyung Kill Kim, Chang Jin Kim, Kwang Kill Lee, Yu Bok Lee, Ki Keun Oh
Clin Exp Pediatr. 1981;24(7):677-684.   Published online July 15, 1981
Congenital unilateral renal agenesis is a rare congenital anomaly. Furthermore, renal agenesis associated with neuroblastoma and cryptorchism is more rare in incidence. Recently we experieced a case of Rt. renal agenesis combined with cryptorchism and neuroblastoma. We diagnosed it with IVP and selective renal angiography and confirmed it with explolaparotomy and biopsy. We reviewed the literatures on renal agenesis, cryptorchism...
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