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Nationwide “Pediatric Nutrition Day” survey on the nutritional status of hospitalized children in South Korea

Lee YM, Ryoo E, Hong J, Kang B, Choe BH, Seo JH, Park JS, Jang HJ, Lee Y, Chang EJ, Chang JY, Lee HJ, Kim JY, Lee EH, Kim HJ, Chung JY, Choi YJ, Choi SY, Kim SC, Kang KS, Yi DY, Moon KR, Lee JH, Kim YJ, Yang HR

BACKGROUND/OBJECTIVES: To evaluate the nutritional status and prevalence of malnutrition in hospitalized children at admission and during hospitalization in South Korea. SUBJECTS/METHODS: This first cross-sectional nationwide “Pediatric Nutrition Day (pNday)” survey...
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Difference in Vitamin D Levels Between Children with Clostridioides difficile Enteritis and Those with Other Acute Infectious Enteritis

Park SW, Lee YJ, Ryoo E

Purpose: A steady increase in Clostridioides difficile enteritis (CDE) has been reported recently. CDE is associated with intestinal dysbiosis, and vitamin D receptors are known to play an important role...
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Clinical Manifestations of Eosinophilic Esophagitis in Children and Adolescents: A Single-Center, Matched Case-Control Study

Roh JH, Ryoo E, Tchah H

Purpose: To examine the prevalence and clinical manifestations of eosinophilic esophagitis (EoE) in Korea children. Methods: The study was designed as a 1:2 matching case-control study. Using information from the endoscopic...
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Nationwide Multicenter Study of Eosinophilic Esophagitis in Korean Children

Lee K, Choe BH, Kang B, Kim S, Kim JY, Shim JO, Lee YM, Lee EH, Jang HJ, Ryoo E, Yang HR

Purpose: In East Asian countries, there are only a few epidemiologic studies of eosinophilic esophagitis (EoE) and no studies in children. We investigated the incidence and compared the clinical characteristics...
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Epidemiology of Staphylococcus aureus Bacteremia in Children at a Single Center from 2002 to 2016

Lim S, Ha SG, Tchah H, Jeon IS, Ryoo E, Son DW, Cho HJ, Sun YH, Kim HJ, Ahn JM, Cho HK

PURPOSE: We aimed to investigate the epidemiological characteristics of Staphylococcus aureus bacteremia in Korean children. METHODS: We retrospectively collected and analyzed data from the medical records of the patients with S....
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Seasonality and etiology of croup in pediatric patients hospitalized with lower respiratory tract infections: A long-term study between 2009 and 2017

Oh KJ, Yang DH, Shin HR, Kim EJ, Sun YH, Ryoo E, Cho HK, Cho HJ

PURPOSE: Croup is a common respiratory disease in children. The aim of this study was to analyze the epidemiology, etiology, and seasonal variations of respiratory virus infections in children with...
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Significance of Perianal Lesion in Pediatric Crohn Disease

Jin WS, Park JH, Lim KI, Tchah H, Ryoo E

PURPOSE: Despite the increasing incidence of pediatric Crohn disease (CD) in Korea, data on the characteristics of perianal lesions are scarce. Therefore, we aimed to investigate the characteristics of pediatric...
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Management of abdominal pain in pediatric emergency departments

Ryoo E

Abdominal pain is one of the common complaints among children who visit pediatric emergency departments (PEDs), but aggressive management has been proven insufficient. Physicians working at PEDs must know the...
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Therapeutic Efficacy and Safety of Prolonged Macrolide, Corticosteroid, Doxycycline, and Levofloxacin against Macrolide-Unresponsive Mycoplasma pneumoniae Pneumonia in Children

Ha SG, Oh KJ, Ko KP, Sun YH, Ryoo E, Tchah H, Jeon IS, Kim HJ, Ahn JM, Cho HK

BACKGROUND: We aimed to compare the therapeutic efficacy of prolonged macrolide (PMC), corticosteroids (CST), doxycycline (DXC), and levofloxacin (LFX) against macrolide-unresponsive Mycoplasma pneumoniae (MP) pneumonia in children and to evaluate...
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Association between Minimal Change Esophagitis and Gastric Dysmotility: A Single-Center Electrogastrography and Endoscopy Study in Children

Lim KI, Shim SB, Tchah H, Ryoo E

PURPOSE: Minimal change esophagitis (MCE) is a reflux disease without mucosal breaks, known to be partially associated with abnormal gastric motor function. Electrogastrography (EGG) is commonly applied to assess gastric...
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Comparison of etiology and clinical presentation between children with laryngotracheobronchopneumonitis and croup

Kim EJ, Nam H, Sun YH, Tchah H, Ryoo E, Cho HK, Cho HJ, Son DW

PURPOSE: Croup, a common childhood respiratory illness with various severities, has many unanswered questions. Laryngotracheobronchopneumonitis (LTBP) is a disease entity considered to be an extension of croup to the lower...
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Behçet's disease with multiple splenic abscesses in a child

Lim KI, Yang DH, Ryoo E

We report the case of a 5-year-old male patient with multiple aseptic splenic abscesses associated with Behçet's disease. The patient visited Gachon University Gil Hospital with fever, abdominal pain, and...
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Clostridium difficile colonization and/or infection during infancy and the risk of childhood allergic diseases

Lee SH, Gong YN, Ryoo E

PURPOSE: The gut microbiota can influence several diseases through immune modulation; however, the exact role of microbes such as Clostridium difficileand the relationship between microbiota colonization and allergic diseases are...
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Bannayan-Riley-Ruvalcaba Syndrome in a Patient with a PTEN Mutation Identified by Chromosomal Microarray Analysis: A Case Report

Lee SH, Ryoo E, Tchah H

Bannayan-Riley-Ruvalcaba syndrome (BRRS) is one of the phosphatase and tensin homolog hamartoma tumor syndrome with a PTEN gene mutation. It is a rare dominant autosomal disorder characterized by cutaneous lipomas,...
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Effect of Metronidazole in Infants with Bowel Habit Change: Irrelative to the Clostridium difficile Colonization

Kim EJ, Lee SH, Tchah H, Ryoo E

PURPOSE: Clinical symptoms associated with Clostridium difficile infection (CDI) can vary widely. Carrier state without apparent symptoms is relatively common during infancy. The objective of this study was to determine...
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Characteristics of Upper Gastrointestinal Tract Involvement in Korean Pediatric Crohn's Disease: A Multicenter Study

Park JH, Nam HN, Lee JH, Hong J, Yi DY, Ryoo E, Jeon IS, Tchah H

PURPOSE: Crohn's disease (CD) can involve any site of the gastrointestinal tract (GIT). However, the characteristics of upper GIT involvement in CD are unclear, especially in the Eastern pediatric population....
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Risk factors of delayed diagnosis of acute appendicitis in children: for early detection of acute appendicitis

Choi JY, Ryoo E, Jo JH, Hann T, Kim SM

PURPOSE: This study examined the risk factors of a delayed diagnosis of acute appendicitis in children undergoing an appendectomy. METHODS: This retrospective study involved children aged below 18 years, who underwent...
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Non-Responders to Intravenous Immunoglobulin and Coronary Artery Dilatation in Kawasaki Disease: Predictive Parameters in Korean Children

Kim BY, Kim D, Kim YH, Ryoo E, Sun YH, Jeon IS, Jung MJ, Cho HK, Tchah H, Choi DY, Kim NY

BACKGROUND AND OBJECTIVES: In Kawasaki disease (KD), high dose intravenous immunoglobulin (IVIG) significantly lowers the coronary complications. However, some patients either do not respond to initial therapy or develop coronary...
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Association between Elevated Alanine Aminotransferase and Urosepsis in Children with Acute Pyelonephritis

Kim D, Lee SH, Tchah H, Ryoo E, Cho HK, Kim YM

PURPOSE: The aim of this study is to investigate the association between elevated alanine aminotransferase (ALT) and urosepsis in children with acute pyelonephritis (APN). METHODS: We retrospectively identified all children who...
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Occurrence Pattern of Intussusception according to the Introduction of Rotavirus Vaccine: An Observational Study at a University Hospital

Nam HN, Lim KI, Tchah H, Ryoo E, Sun YH, Cho HK

PURPOSE: Rotavirus vaccine (RV) was introduced in Korea since 2007, and intussusception (IS) remains an important safety concern. This study investigated the trend of IS occurrence related to RV as...
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