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Review Article
Cardiology
Arrhythmia and COVID-19 in children
Mi Kyoung Song, Bryan Kwon
Clin Exp Pediatr. 2023;66(5):190-200.   Published online April 18, 2023
· Pediatric patients have a relatively low incidence of tachyarrhythmia both in acute coronavirus disease 2019 and multisystem inflammatory syndrome in children (MIS-C), but it was associated with an increased risk of poor outcomes.
· Conduction abnormalities were not uncommon, especially in those with MIS-C. Most patients recovered to normal sinus rhythm; however, some progressed to advanced atrioventricular block and rarely required permanent pacemaker implantation.
Original Article
Neonatology (Perinatology)
New modified version of the Risk Adjustment for Congenital Heart Surgery category and mortality in premature infants with critical congenital heart disease
Young Mi Yoon, Seong Phil Bae, Yoon-Joo Kim, Jae Gun Kwak, Woong-Han Kim, Mi Kyoung Song, Seung Han Shin, Ee-Kyung Kim, Han-Suk Kim
Clin Exp Pediatr. 2020;63(10):395-401.   Published online July 15, 2020
Questions: This study aimed to describe the survival of premature infants with critical congenital heart disease (CHD) and to identify the risk factors including the new modified version of the Risk Adjustment for Congenital Heart Surgery (M-RACHS) associated with mortality.
Finding: For premature infants with critical CHD, survival rate was 76.9% and very low birth weight (VLBW), persistent pulmonary hypertension of the newborn (PPHN), bronchopulmonary dysplasia (BPD), and M-RACHS 5 or more were associated with in-hospital mortality.
Meaning: VLBW, PPHN and BPD, as well as M-RACHS≥5, were risk factors for mortality among premature infants with critical CHD.
Case Report
Autoimmune hepatitis-primary sclerosing cholangitis overlap syndrome in a 10-year-old girl with ulcerative colitis
Jeana Hong, Mi Kyoung Song, Jae Sung Ko, Gyeong Hoon Kang, Woo Sun Kim, Jeong Kee Seo
Clin Exp Pediatr. 2009;52(4):504-507.   Published online April 15, 2009
Autoimmune hepatitis (AIH), primary sclerosing cholangitis (PSC), and primary biliary cirrhosis (PBC) are chronic autoimmune liver diseases. Overlap syndrome is defined as a condition in which the clinical, biochemical, and histological features of these autoimmune diseases are overlapped. Thus, it is difficult to appreciate overlap syndrome as an actual diagnostic entity. Only a few cases of the overlap syndrome of...