Clinical and Experimental Pediatrics

Original Article

General Pediatrics

Trends and determinants in breastfeeding among Korean infants (2007–2021): a nationwide study using the National Health Screening Program for Infants and Children

Minwoong Kang, Eui Kyung Choi, Jeung Min Lee, Hye-Jung Shin, Woo Ryoung Lee, Son Moon Shin; Korean Society of Breastfeeding Medicine

Clin Exp Pediatr. 2025;68(10):772-780. Published online July 4, 2025

Question: What are the recent trends and determinants of breastfeeding in South Korea?
Finding: Breastfeeding rates in South Korea declined significantly from 2007 to 2021, with lower rates observed in preterm, low-birthweight, and multiple-birth infants as well as rural or lower-income households.
Meaning: Targeted interventions, including prenatal education, postnatal support, and community-based programs, are required to address disparities and improve breastfeeding rates.

DOI: https://doi.org/10.3345/cep.2025.00857

Nutrition

Survey of Korean pediatrician’s perceptions of barriers to and improvements in breastfeeding

Seong Phil Bae, Woo Ryoung Lee, Won-Ho Hahn, Hye-Jung Shin, Young Min Ahn, Son Moon Shin, Yong Joo Kim, Ellen Ai-Rhan Kim, Youn Jeong Shin, Dae Yong Yi, Soon Min Lee, Juyoung Lee, Jin A Lee, Sung-Hoon Chung, Euiseok Jung, Eui Kyung Choi, Ju Sun Heo

Clin Exp Pediatr. 2022;65(11):540-546. Published online July 29, 2022

Web of Science 4 Crossref 8

Question: What barriers to breastfeeding do Korean pediatricians perceive?
Finding: Regardless of medical institution, breastfeeding counseling for parents is currently limited, and breastfeeding is commonly discontinued due to various maternal and neonatal factors.
Meaning: To promote breastfeeding, increasing pediatrician participation in breastfeeding counseling with the establishment of appropriate breastfeeding counseling fees and the expansion of practical and high-quality breastfeeding education for medical staff should be considered.

DOI: https://doi.org/10.3345/cep.2022.00311

Editorial

Neonatology (Perinatology)

Central line-associated bloodstream infections in the neonatal intensive care unit

Woo Ryoung Lee

Clin Exp Pediatr. 2019;62(10):382-383. Published online July 17, 2019

DOI: https://doi.org/10.3345/kjp.2019.00269

Clinical Lecture

Neonatal Sepsis

Woo Ryoung Lee

Clin Exp Pediatr. 2002;45(3):289-294. Published online March 15, 2002

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Original Article

Clinical review of abdominal masses in infants and children.

Dong A Lee, Woo Ryoung Lee, Jae Ock Park, Chang Hwi Kim, Sang Jhoo Lee

Clin Exp Pediatr. 1991;34(3):380-387. Published online March 31, 1991

We reviewed 34 patients with palpable abdominal mass among 5,920 infants and children who admitted to the department of pediatrics of Soon Chun Hyang University from Jun. 1, 1986 to Aug. 31，1989. The results were as follows: 1) The incidence was 0.57% and the male: female ratio was 1:1.3. The mass was noted before 1 year of age in 23.5% of cases and under 5 years...

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Adrenocortical carcinoma in a twelve month old male infant.

Woo Ryoung Lee, Kyoung Whan Oh, Chang Hwi Kim, Sang Jhoo Lee

Clin Exp Pediatr. 1991;34(1):137-143. Published online January 31, 1991

Adrenocortical carcinoma is a rare disease in childhood. Most of these carcinomas are functional, produc- ing endocrine abnormalities such as Cushing syndrome, virilization, precocious puberty, hyperaldosteronism or feminization. We experienced a case of adrenocortical carcinoma in a 12 month old male infant who exhibited features of Cushing syndrome, Virilization, precocious puberty and hyperaldosteronism, which were due to functional adrenocortical carcinoma. Microscopic examination revealed cellular pleomorphism...

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A Clinical Analysis on Acute Appendicitis in Children.

Woo Ryoung Lee, Dong A Lee, Jae Ock Park, Sang Joo Lee

Clin Exp Pediatr. 1990;33(12):1670-1679. Published online December 31, 1990

This study is a clinical analysis of 111 cases of acute appendicitis in children under the age of 15 which were treated at Soon Chun Hyang University Hospital during the past 4 year period from January 1985 to December 1988. The following results were obtained. 1) The incidence of appendicitis was low (2.7%) under the age of 5 and showed a gradual increase in proportion to...

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