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Review Article
Infection
COVID-19 in immunocompromised children and adolescents
Byung Ok Kwak, Byung Wook Eun
Clin Exp Pediatr. 2023;66(5):182-189.   Published online April 18, 2023
Most immunocompromised children and adolescents are not at increased risk of developing severe coronavirus disease 2019 (COVID-19). COVID-19 outcomes for low- or medium-risk immunocompromised children are favorable, while more serious illness reportedly occurs in high-risk immunocompromised children by underlying disease, its treatments, and other factors. Therefore, the early detection and timely management of severe COVID-19 and treatment of underlying disease are important. Hospitalization and COVID-19 vaccination should be carefully considered.
Changes in age-specific seroprevalence of Japanese encephalitis virus and impact of Japanese encephalitis vaccine in Korea
Byung Ok Kwak, Young Jin Hong, Dong Hyun Kim
Clin Exp Pediatr. 2022;65(3):108-114.   Published online September 24, 2021
Since the introduction of a universal Japanese encephalitis (JE) vaccination program and urbanization, the incidence of JE has dramatically decreased in Korea. However, recent JE cases have occurred, predominantly among unvaccinated adults and with a shift in age distribution. Continuous surveillance of the seroprevalence of JE is required to establish a proper immunization policy in Korea.
Case Report
Necrotizing fasciitis and streptococcal toxic shock syndrome secondary to varicella in a healthy child
Byung Ok Kwak, Min Jung Lee, Hye Won Park, Min Kyung Song, Sochung Chung, Kyo Sun Kim
Clin Exp Pediatr. 2014;57(12):538-541.   Published online December 31, 2014

Varicella is usually considered to be a benign disease in healthy children; however, serious complications can occur such as necrotizing fasciitis and toxic shock syndrome. We describe a 38-month-old girl with necrotizing fasciitis and streptococcal toxic shock syndrome following varicella. She was previously healthy and vaccinated against varicella at 12 months of age. She had been diagnosed with varicella three...

Original Article
Kidney size estimation in Korean children with Technesium-99m dimercaptosuccinic acid scintigraphy
Min Jung Lee, Mi Kyung Son, Byung Ok Kwak, Hye Won Park, Sochung Chung, Kyo Sun Kim
Clin Exp Pediatr. 2014;57(1):41-45.   Published online January 31, 2014
Purpose

Renal size is an important indicator to determine adequate organ growth in children. The aim of this study was to estimate renal size with Technesium-99m dimercaptosuccinic acid (DMSA) scan and propose a simple formula for predicting renal length in normal Korean children.

Methods

This study included 346 children (148 boys and 198 girls; age range, 1 month to 17 years) in whom...

Microalbuminuria in children with urinary tract infection
Byung Ok Kwak, Sochung Chung, Kyo Sun Kim
Clin Exp Pediatr. 2010;53(9):840-844.   Published online September 13, 2010
Purpose

Microalbuminuria is defined as increased urinary albumin excretion (30-300 mg/day) or microalbumin/creatinine ratio (30-300 mg/g) in a spot urine sample. Although microalbuminuria is a predictor of clinical nephropathy and cardiomyopathy, few studies have investigated microalbuminuria in children with urinary tract infection (UTI).

Methods

Therefore, we compared the spot urine microalbumin/creatinine ratio in pediatric UTI patients with that of control subjects. We investigated...

Case Report
A case of Plasmodium vivax malaria occurring during a school excursion to Pocheon-gun
Byung Ok Kwak, Sochung Chung, Kyo Sun Kim
Clin Exp Pediatr. 2010;53(1):85-88.   Published online January 15, 2010
Malaria caused by Plasmodium species is characterized by paroxysms of fever, chills, fatigue, anemia, and splenomegaly. Vivax malaria has lately re-emerged as an infectious disease and has exhibited high transmission rate in northern Gyeonggi-do province. We encountered a case of malaria in a child presenting with fever and thrombocytopenia who had recently made a school excursion to Pocheon-gun, Gyeonggi-do. The...