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· Enhanced safety monitoring system of coronavirus disease 2019 (COVID-19) vaccines were implemented to detect signals rapidly as part of the national COVID-19 vaccination program. · As of June 4, 2023, reported adverse events after COVID-19 vaccination was 0.38% among 125,107,883 doses of COVID- 19 vaccines administered. · Most reported adverse reactions after COVID-19 vaccinations have shown nonserious and mild intensity. |
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MicroRNAs (miRNAs) are small noncoding RNAs that regulate gene expression post transcriptionally, and MiRNA expression levels vary with developmental stages. MiRNAs play an important role in several biological processes in children, including growth, neuro-development, inflammation, and tumor formation. Research on miRNAs may uncover the molecular mechanisms underlying various pediatric diseases, leading to the development of novel biomarkers that aid in the diagnosis, treatment, and prognosis of these diseases. |
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· Review of articles that investigated the applications of virtual, augmented, or mixed reality in pediatric clinical settings and in the training of pediatric medical professionals was conducted. · A total of 89 studies were retrieved, with 36 randomized controlled trials. · In most studies, intervention using the novel technology was at least as effective or more effective than the traditional method. · Use of virtual, augmented, and mixed reality has potential in pediatrics. |
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· Question: What level of parenting stress is experienced by parents of children with developmental delays (DDs) without autism spectrum disorder, and what factors contribute to it? · Findings: Parents of children with DDs experienced high parenting stress that were significantly mediated by their children’s low interactive behaviors. · Meaning: The interactive behaviors of children with DDs mediate parenting stress. |
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· Epigenetic mechanisms are involved in rapidly increasing food allergy. · There is still no definitive way to diagnose food allergy. · Early introduction of peanuts, eggs, and cow’s milk reduces food allergy incidence. · Administration of probiotics such as Lactobacillus rhamnosus GG, Bifidobacterium bifidum can partially reduce the occurrence of allergic symptoms. |
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· Spontaneous movements can be useful to evaluate neuronal integrity in preterm infants. · In General Movements Assessment, continuous cramped synchronized movements and absent fidgety movements can indicate high-risk infants for cerebral palsy. · Recent advances in machine learning techniques have led to the automated prediction of cerebral palsy based on infantile spontaneous movements. |
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Question: Z score reference values for right ventricular size and systolic function in children using echocardiography are available in several countries. Despite the high burden of diseases involving the right ventricle in Nigeria, these reference values have limited applicability. Finding: The right ventricular sizes of Nigerian children differed from those published elsewhere. Meaning: These reference values will aid the treatment, monitoring, and pre- and postintervention for Nigerian children. |
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· Vitamins have effector mechanisms in the innate and adaptive immune systems and potential roles in preventing and reducing the severity of coronavirus disease 2019 (COVID-19). · Vitamins may be immunonutrients in the treatment of COVID-19 infections and prevention of patient deterioration due to critical illness, thus demonstrating the significance of a nutritious, well-balanced diet. |
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· Electroencephalography (EEG) records brain activity with high temporal resolution. · EEG source localization, combined with other functional or structural imaging methods, provides information about brain network and connectivity in clinical neuroscience. · EEG source localization identifies brain location from electrical current sources in several neuropsychiatric diseases such as epilepsy, attention deficit/hyperactivity disorder, and anxiety disorders. |
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· 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. |
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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. |
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Korea’s child abuse response system was transformed under policy change in April 2020, from what was previously operated on a private-centered basis to a focus on the public sector with expanded role of local governments. Promising outcomes are expected with new system as greater governmental intervention will effectively protect at-risk children with acceleration in institutional collaboration and expertise in information management and administration. |
Clinical and Experimental Pediatrics (CEP) is a journal that specializes in pediatric research topics. It covers a wide range of research areas, including basic research, translational research, and research related to improving pediatric health and diseases. CEP also focuses on the coordination of societal structures and processes that orchestrate pediatric health and disease throughout society, and the parallel relationship between regional characteristics and globalization. The journal intends to continue promoting pediatric health through relentless efforts and the discovery of new research areas. |
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Social media use has potential benefits and risks, including links to adverse health problems in children such as functional gastrointestinal disorders (FGIDs). Screen time control, emotional support, and parental guidance can help children navigate social media safely and reduce the risk of developing FGIDs. |
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Question: What are the PD-1+ CD4+ T cells percentages and serum interferon gamma (IFN-γ) levels of pediatric patients with immune thrombocytopenia (ITP)? Finding: Compared with healthy controls, the PD-1+ CD4+ T cells percentages and IFN-γ levels were significantly higher in ITP patients before and 1 month after therapy. Meaning: Our findings suggest that PD-1+ CD4+ T cells and IFN-γ are involved in the pathophysiological process of ITP. |
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· Although the basic concept of hemodialysis (HD) is similar in adults and children, specific factors must be considered in the latter, including the small dialyzer and circuit, difficult vascular access, and frequent complications. · HD-associated complications include catheter-related problems, hemodynamic instability, and neurodevelopmental and cognitive dysfunction. · Pediatric HD is challenging, and steady efforts are needed to perform it safely and reduce its complications, thereby improving clinical outcomes. |
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An accurate diagnosis depends on correct history taking and its interpretation. An in-depth understanding of the symptoms of syncope in connection with its pathophysiology can lead to avoiding critical pitfalls in the diagnostic process of history taking. |
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· Inflammatory responses accompanying fever increase neuronal excitability in the central nervous system, which in turn provokes seizures. · Fever in children with febrile seizures is usually caused by common respiratory viruses, the distributions of which match those of seasonal community-acquired respiratory tract infections. · Several genetic variations in ion channels seem associated with neuronal hyperexcitability in children with febrile seizures. |
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· The prevalence of pediatric nonalcoholic fatty liver disease (NAFLD) increased from 8.2% in 2009 to 12.1% in 2018 in Korea. · Laboratory tests, biomarkers, and imaging studies are used for the early detection of NAFLD. · Insulin resistance is closely related to NAFLD. |
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· Congenital hearing loss is common, with an approximate incidence of 1.5 per 1,000 newborns and affecting 1.2%–11% of preterm and 1.6%–13.7% of neonatal intensive care unit neonates. · Etiologies vary, and up to 80% of cases are genetic. · Newborn hearing screenings follow the 1-3-6 rule, and babies at high risk of hearing loss should be referred to otolaryngology for early detection and timely intervention. |
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Gastrointestinal (GI) allergies are divided into immunoglobulin E (IgE)-mediated, non-IgE-mediated, and mixed types. In addition to non-IgE-mediated, overlapping eosinophilic GI disorders (EGIDs) have increased in Japan. EGIDs, a mixed-type allergy category, include eosinophilic esophagitis (EoE) and non-EoE EGIDs. The number of EoE cases has increased in Western countries, followed by Asian countries. Recent GI allergies may also be associated with type 2 inflammation. |
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· Eosinophilic gastrointestinal disease (EGID) is uncommon, with a prevalence of 1–30/100,000 in the general population; however, it is increasing worldwide. · The diagnosis of EGID is based on histopathological findings of endoscopic mucosal biopsy in which tissue eosinophils are counted in each gastrointestinal tract segment of patients with chronic or recurrent gastrointestinal symptoms. · Individualized treatment strategies, including adequate dietary and pharmacological therapy, may help improve outcomes of children with EGID. |
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· As the number of patients with congenital heart disease increases, the medical burden increases. · Various fusion imaging techniques using percutaneous procedures have been introduced. · With advances in technology, convenient ambulatory devices have been introduced. · A well-organized team approach is required to resolve advanced heart failure in patients with congenital heart disease. |
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· Among survivors, 60.9% of infants born at 22 weeks’ gestation had moderate to severe impairments, whereas 50.3% born at 23 weeks’ and 42.2% at 24 weeks’ gestation had moderate to severe impairments. · Moderate and late preterm infants reportedly have less severe disease than very preterm infants, but they still experience adverse neurodevelopmental outcomes. · The careful follow-up and early detection of developmental problems in these patients are required. |
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· Electroencephalography (EEG) directly images the electrical activity of neurons at a higher temporal resolution than other neuroimaging techniques. · EEG is still widely used in brain function research due to its advantages. · Forward and inverse problems of EEG analyses require solutions. · Methods such as the dipole and distributed source models have been introduced. · Applications of EEG are expanding with the integration of other technologies and large-scale data. |
Clinical and Experimental Pediatrics is an open access journal. All articles are distributed under the terms of the Creative Commons Attribution NonCommercial License (http://creativecommons.org/licenses/by-nc/4.0/)
Copyright © 2025 by Korean Pediatric Society.