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Original Article
Neurodevelopmental outcomes and comorbidities of children with congenital muscular torticollis: evaluation using the National Health Screening Program for Infants and Children database
Og Hyang Kim, Seung Won Lee, Eun Kyo Ha, Ju Hee Kim, Yun Hye Jo, Seongyeong Rhie, Man Yong Han, Kyu Young Chae
Received September 14, 2021  Accepted November 5, 2021  
Question: What comorbidities are increased in children with congenital muscular torticollis (CMT)? Are there differences in the neurodevelopmental outcomes of children with CMT who received physical therapy versus those who did not?
Finding: The risk of congenital musculoskeletal deformities is increased in CMT. Children who did not receive physical therapy were at greater risk of neurodevelopmental delay.
Meaning: In CMT, musculoskeletal comorbidities should be identified and active early treatment provided.
DOI: https://doi.org/10.3345/cep.2021.01417    [Epub ahead of print]
Allergy
Cohort profile: National Investigation of Birth Cohort in Korea study 2008 (NICKs-2008)
Ju Hee Kim, Jung Eun Lee, So Min Shim, Eun Kyo Ha, Dong Keon Yon, Ok Hyang Kim, Ji Hyeon Baek, Hyun Yong Koh, Kyu Young Chae, Seung Won Lee, Man Yong Han
Clin Exp Pediatr. 2021;64(9):480-488.   Published online January 5, 2021
This national cohort study included all Korean children born in 2008 and 2009 observed over a period of more than 10 years. Our findings demonstrate that it is possible to analyze disease onset prior to hospitalization based on information such as lifestyle, eating habits, and risk factors by integrating National Health Insurance System data with national health screening data.
Review Article
Allergy
Prevalence, comorbidities, diagnosis, and treatment of nonallergic rhinitis: real-world comparison with allergic rhinitis
Hye Yung Yum, Eun Kyo Ha, Yoon Ho Shin, Man Yong Han
Clin Exp Pediatr. 2021;64(8):373-383.   Published online August 10, 2020
Rhinitis is among the most common respiratory diseases in children. Nonallergic rhinitis, which involves nasal symptoms without evidence of systemic allergic inflammation or infection, is a heterogeneous entity with diverse manifestations and intensities. Nonallergic rhinitis accounts for 16%–89% of the chronic rhinitis cases, affecting 1%–50% (median 10%) of the total pediatric population. The clinical course of nonallergic rhinitis is generally...
Perspective
Other
The long journey toward improving children’s health: from ‘Korean Journal of Pediatrics’ to ‘Clinical and Experimental Pediatrics
Man Yong Han, Yeong Ho Rha, Chong-Woo Bae, Baik-Lin Eun; Clinical and Experimental Pediatrics Editorial Team
Clin Exp Pediatr. 2020;63(1):1-2.   Published online January 15, 2020
Original Article
Pulmonology
Clinical predictors of chest radiographic abnormalities in young children hospitalized with bronchiolitis: a single center study
Ga Ram Kim, Min Sun Na, Kyung Suk Baek, Seung Jin Lee, Kyung Suk Lee, Young Ho Jung, Hye Mi Jee, Tae Hee Kwon, Man Yong Han, Youn Ho Sheen
Clin Exp Pediatr. 2016;59(12):471-476.   Published online December 31, 2016
Purpose

Chest radiography is often performed on patients hospitalized with typical clinical manifestations of bronchiolitis. We aimed to determine the proportion of subjects with pathologic chest radiographic findings and the clinical predictors associated with pathologic chest radiographic findings in young children admitted with the typical presentation of bronchiolitis.

Methods

We obtained the following data at admission: sex, age, neonatal history, past history of...

Low levels of tissue inhibitor of metalloproteinase-2 at birth may be associated with subsequent development of bronchopulmonary dysplasia in preterm infants
Choae Lee, Jaewoo An, Ji Hee Kim, Eun Sun Kim, Soo Hyun Kim, Yeon Kyung Cho, Dong Hyun Cha, Man Yong Han, Kyu Hyung Lee, Youn Ho Sheen
Clin Exp Pediatr. 2015;58(11):415-420.   Published online November 22, 2015
Purpose

Bronchopulmonary dysplasia (BPD) is characterized by inflammation with proteolytic damage to the lung extracellular matrix. The results from previous studies are inconsistent regarding the role of proteinases and antiproteinases in the development of BPD. The aim of the present study was to investigate whether matrix metalloproteinase (MMP)-8, MMP-9, tissue inhibitor of metalloproteinase (TIMP)-2, and TIMP-1 levels in the serum of...

Food allergen sensitization in young children with typical signs and symptoms of immediate-type food allergies: a comparison between monosensitized and polysensitized children
Na Yeon Kim, Ga Ram Kim, Joon Hwan Kim, Ji Hyeon Baek, Jung Won Yoon, Hye Mi Jee, Hye Sung Baek, Yong Ho Jung, Sun Hee Choi, Ki Eun Kim, Youn Ho Shin, Hye Yung Yum, Man Yong Han, Kyu-Earn Kim
Clin Exp Pediatr. 2015;58(9):330-335.   Published online September 21, 2015
Purpose

The clinical interpretation of children sensitized to allergens is challenging, particularly in children with food allergies. We aimed to examine clinical differences between children with monosensitization and those with polysensitization to common food allergens and to determine risk factors for polysensitization in young children <10 years of age with immediate-type food allergies.

Methods

The study included children <10 years of age with...

Clinical risk factors associated with the development of wheezing in children less than 2 years of age who required hospitalization for viral lower respiratory tract infections
Joon Hwan Kim, Ji-Yeon Choi, Na Yeon Kim, Jin Woo Kim, Ji Hyeon Baek, Hye Sung Baek, Jung Won Yoon, Hye Mi Jee, Sun Hee Choi, Hyeung Yoon Kim, Ki Eun Kim, Youn Ho Shin, Man Yong Han
Clin Exp Pediatr. 2015;58(7):245-250.   Published online July 22, 2015
Purpose

Wheezing following viral lower respiratory tract infections (LRTIs) in children <2 years of age is an important risk factor for the development of asthma later in life; however, not all children with viral LRTIs develop wheezing. This study investigated risk factors for the development of wheezing during viral LRTIs requiring hospitalization.

Methods

The study included 142 children <2 years of age hospitalized...

Review Article
Determinants of sensitization to allergen in infants and young children
Hyeong Yun Kim, Youn Ho Shin, Man Yong Han
Clin Exp Pediatr. 2014;57(5):205-210.   Published online May 31, 2014

Atopic sensitization is a complex phenomenon that changes dynamically with age throughout childhood; its prevalence increases with age in young children. Additionally, with increasing age, the prevalence of sensitization to inhalant allergens and the prevalence of polysensitization to allergens increase. It is also well established that the development of atopic sensitization is the result of a complex interplay of genetic...

Original Article
Prevalence and comorbidity of allergic diseases in preschool children
Hyeong Yun Kim, Eun Byul Kwon, Ji Hyeon Baek, Youn Ho Shin, Hye Yung Yum, Hye Mi Jee, Jung Won Yoon, Man Yong Han
Clin Exp Pediatr. 2013;56(8):338-342.   Published online August 27, 2013
Purpose

Allergic disease and its comorbidities significantly influence the quality of life. Although the comorbidities of allergic diseases are well described in adult populations, little is known about them in preschool children. In the present study, we aimed to assess the prevalence and comorbidity of allergic diseases in Korean preschool children.

Methods

We conducted a cross-sectional study comprising 615 Korean children (age, 3...

Antibody response to pneumococcal vaccination in children with chronic or recurrent rhinosinusitis
Ji Hyeon Baek, Hyun Kyong Seo, Hye Mi Jee, Youn Ho Shin, Man Yong Han, Eun Sang Oh, Hyun Ju Lee, Kyung Hyo Kim
Clin Exp Pediatr. 2013;56(7):286-290.   Published online July 19, 2013
Purpose

Although chronic and recurrent rhinosinusitis is prevalent in children, little is known about its causes. Here, we investigated the humoral immunity in children with chronic or recurrent rhinosinusitis.

Methods

We examined 16 children attending the outpatient clinic at the CHA Bundang Medical Center including 11 boys and 5 girls, aged 3.11 years (mean age, 5.6 years), who had rhinosinusitis for >3 months...

Impact factor of Korean Journal of Pediatrics on Korean Medical Citation Index and Science Citation Index of Web of Science
Chong Woo Bae, Sun Hee Choi, Man Yong Han, Yeong Ho Rha, Young Jin Lee
Clin Exp Pediatr. 2011;54(4):152-156.   Published online April 30, 2011
Purpose

The total number of times a paper is cited, also known as the impact factor (IF) of a medical journal, is widely implied in evaluating the quality of a research paper. We evaluated the citation index data as an IF of Korean J Pediatr in Korean Medical Citation Index (KoMCI) and JCI of Web of Science.

Methods

We calculated the IF of...

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...

Increased B cell-activating factor (BAFF) level in the sputum of children with asthma
Hye Mi Jee, Bong Seok Choi, Kyung Won Kim, Myung Hyun Sohn, Man Yong Han, Kyu-Earn Kim
Clin Exp Pediatr. 2010;53(8):795-800.   Published online August 31, 2010
Purpose

B cell-activating factor (BAFF) is a tumor-necrosis factor (TNF) superfamily member best known for its role in the survival and maturation of B cells. BAFF activity is observed in naïve cells as well as in effector/memory T cells. We aimed to explore whether BAFF in sputum is expressed at elevated levels in asthmatic airways and associated with eosinophilic inflammation, pulmonary...

Analysis of reports on orphan lung diseases in Korean children
Sun Jung Jang, Hyun Kyung Seo, Sung Jae Yi, Kyong Min Kim, Hye Mi Jee, Man Yong Han
Clin Exp Pediatr. 2010;53(6):711-717.   Published online June 23, 2010
Purpose

Orphan lung diseases are defined as lung diseases with a prevalence of 1 or less in 2,000 individuals. Despite an increase in the numbers of patients with such diseases, few studies on Korean children have appeared. To obtain epidemiologic and demographic data on these diseases, we systematically reviewed reports on pediatric orphan lung diseases in Korea over the last 50...

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