| This is the first Korean evidence-based clinical practice guideline for pediatric hepatoblastoma. Key recommendations include computed tomography and magnetic resonance imaging for PRETEXT (PRE-Treatment EXTent of disease) staging, cisplatin monotherapy for standard-risk disease, upfront surgery for resectable tumors, metastasectomy for residual lung lesions, and sodium thiosulfate for otoprotection. Well-differentiated fetal histology carries a favorable prognosis, whereas the small cell undifferentiated pattern requires immunohistochemical and molecular testing to exclude malignant rhabdoid tumor. |
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Association between maternal traumatic stress related to Great East Japan Earthquake and behavioral problems in offspringQuestion: Does prepregnancy maternal traumatic stress influence behavioral outcomes in early childhood? Finding: Children born to mothers who reported greater disaster-related traumatic stress showed higher risks of internalizing, externalizing, and total behavioral problems at ages 2 and 3 years consistent with a dose-response relationship. Meaning: Long-term maternal mental health support covering the broader reproductive period may play a role in addressing intergenerational behavioral problems after large-scale disasters. |
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Background: The coronavirus disease 2019 (COVID-19)
pandemic has substantially altered Pediatric Emergency
Department (PED) utilization. However, longitudinal
changes across multiple PEDs after major policy transitions
remain unclear.
Purpose: This study aimed to evaluate changes in utilization, patient distribution, accessibility to pediatric emergency care, and clinical characteristics across 5 participating PEDs in Daegu, Korea. Methods: This multicenter retrospective study analyzed 140,017 visits among patients aged <16 years between January 2019 and May... |
| In this systematic review and meta-analysis of 9 studies comprising 1,704 tissue culture specimens from children with osteoarticular infection, antibiotic pretreatment was not associated with reduced tissue culture yield (odds ratio, 1.60; 95% confidence interval, 1.23–2.08). Empiric antibiotic therapy should not be withheld to preserve culture yield in suspected osteoarticular infection; invasive cultures should be obtained at the earliest safe opportunity without delaying treatment. |
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Excessive digital media exposure before 5 years is consistently associated with poorer language development, attention, executive functioning, sleep quality, and socioemotional development. The adverse effects are particularly evident when screen exposure replaces caregiver-child interaction and active play. High-quality educational content combined with caregiver coviewing may mitigate some of these risks. Pediatric counseling should emphasize age-appropriate media use, family media plans, and balanced daily routines. |
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· Patient-derived intestinal organoids provide a human-relevant platform for studying disease mechanisms and evaluating therapeutic responses in pediatric inflammatory bowel disease (PIBD). · By preserving patient-specific epithelial characteristics, these models enable the functional assessment of disease heterogeneity and drug responsiveness. · Although technical and biological limitations remain, ongoing advances in immune-inclusive and microphysiological systems are expected to enhance their translational value and support personalized treatment strategies for PIBD. |
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Question: Is gut microbiota composition altered in children with growth hormone deficiency (GHD)? Finding: Children with GHD exhibited altered gut microbiota composition and predicted microbial functional pathways despite similar overall microbial diversity. Meaning: These preliminary findings suggest a potential association between gut microbiota and pediatric GHD and warrant validation in larger prospective studies. |
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Question: Are red cell distribution width (RDW) and reticulocyte hemoglobin content (CHr) reliable alternative markers for detecting iron depletion in children with cyanotic congenital heart disease, whose status is often masked by compensatory polycythemia? Finding: Multivariate analysis demonstrated that RDW (≥18.8%) and CHr (<28 pg) are strong independent predictors of iron depletion in this vulnerable population. Meaning: Combined use of these accessible markers facilitates earlier diagnosis and improves clinical management in resource-limited healthcare facilities. |
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Question: Do the loss of function (LOF) of ATP7B mutated variants affect the severity or outcomes of hepatic Wilson disease (WD)? Finding: LOF is associated with advanced liver disease, portal hypertension, and extrahepatic involvement. LOF did not determine hepatic or overall outcomes. ATP7B: c.813C>A (truncation variant) has an aggressive course with higher predisposition to acute liver failure. Lower serum exchangeable copper levels and higher disappearance of Kayser-Fleischer ring were observed in ATP7B: c.3809A>G (nontruncation variant) suggesting a better effect of chelation and lesser systemic copper. Meaning: Truncation of the ATP7B protein determines the severity of the phenotype in WD. |
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Question: Do government-funded Specialized Public Medical Centers for Children (SPMCCs) improve the quality of care for pediatric patients requiring complex and intensive medical care? Finding: The SPMCC hospital designation reduced 30-day readmission rates among pediatric patients with severe conditions. Meaning: Government investments are associated with improved quality of care for children with complex chronic conditions. Therefore, sustained government funding is essential to enhancing pediatric care quality. |
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Intranasal corticosteroids remain the cornerstone treatment for moderate to severe allergic rhinitis. The 2024–2025 Allergic Rhinitis and its Impact on Asthma guideline update suggests that fixed intranasal antihistamine–intranasal corticosteroid combinations may provide greater symptom control in allergic rhinitis than either agent alone. A control-based patient-centered approach that incorporates real-world evidence is essential for optimizing treatment outcomes in children. |
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Question: Can the potential metabolites/pathways involved in the pathogenesis of sepsis-associated acute kidney injury (SA-AKI) be identified using metabolomics? Finding: We identified 18 novel metabolites involved in the pathogenesis of SA-AKI as well as 31 metabolites that were altered in severe AKI. Linoleic acid, linolenic acid, and phospholipid pathways were altered in SA-AKI. Meaning: Once validated, these markers may be used to diagnose SA-AKI at an early stage before sufficient kidney injury occurs. |
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Question: In pediatric acute lymphoblastic leukemia (ALL), what are the incidence and causes of induction-phase acute kidney injury (AKI), and which factors predict chronic kidney disease (CKD)? Finding: Induction AKI occurred in 43% of patients, while CKD developed in 1 of 8 patients. The 5-year CKD-free survival rate was 94%. Older age at diagnosis was a continuous independent determinant of CKD risk. Meaning: Induction AKI is common and clinically relevant. Older children warrant closer kidney monitoring during and after therapy. |
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Question: Can demographic factors identify pediatric malignant vasovagal syncope pre-head-up tilt test (HUTT)? Finding: Age/body mass index are independent protectors; <12.9 years age cuts risk 20%/yr. Meaning: Enables early risk stratification to optimize HUTT safety for children. |
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Proton pump inhibitors (PPIs) effectively treat acid-related disorders, including gastroesophageal reflux disease, eosinophilic esophagitis, peptic ulcers, and Zollinger-Ellison syndrome. Long-term use, particularly in children, may lead to microbiome alterations, nutrient deficiencies, infections, renal injury, osteoporosis, fractures, and other gastrointestinal changes. PPI therapy should be guided by clear clinical indications, prescribed at the lowest effective dose for the shortest necessary duration, and regularly reassessed to minimize risks in young children. |
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Foreign body and caustic substance ingestion in children aged 1–5 years can feature to severe and, sometimes life-threatening complications. High-risk items include batteries, magnets, and corrosive chemicals. Severity depends on object type, location, and ingestion timing. Prompt diagnosis and early endoscopic intervention are crucial. Individualized management, high clinical suspicion, and parental education are essential to improving outcomes and preventing immediate and long-term complications affecting a child’s quality of life. |
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Question: Does completing a third-generation cephalosporin course, despite in vitro resistance, increase the early urinary tract infection recurrence rate in children? Finding: Among 989 Korean children, discordant therapy increased the 2-month recurrence risk by 40% compared with concordant or susceptible therapy. Meaning: Checking isolate susceptibility and switching to an active oral drug may curb recurrence and limit the use of broad-spectrum antibiotics. |
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Question: Can probiotic BLa80 bring long-term benefits to the health of young children? Finding: This trial demonstrated that the daily administration of s BLa80 at 5×109 colony-forming units for 3 months in children can reduce the risk of eczema, upper respiratory tract infections, and acute tracheitis/bronchitis as well as beneficially improve the gut microbiome without any adverse effect. Meaning: Bla80 can bring definite health benefits to young children. |
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In a population‑based cohort of 74,466 children, 25% experienced early adiposity rebound (AR) by age 3. Daily breakfast and routine napping at 1.5 years were independently associated with lower odds of AR, while obesity at 1.5 years was a strong predictor. These modifiable routines could help delay AR and enable early identification during routine child health checks. |
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Question: Which immunomodulatory strategies can reduce mortality in children with acute necrotizing encephalopathy (ANE)? Finding: High-dose methylprednisolone (30 mg/kg/day) significantly improved the survival of high-risk patients, particularly when combined with tocilizumab. Meaning: These findings support the use of a severity-based immunotherapy approach to optimize the outcomes of pediatric ANE. |
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Question: Associations have been made between maternal sleep disorders during pregnancy and allergic diseases including bronchial asthma, atopic dermatitis, food allergy, and allergic conjunctivitis/rhinitis/hay fever in their children. Finding: In the crude model, sleep disorders during pregnancy were associated with all examined allergic diseases in children. After adjustment, significant associations remained for atopic dermatitis and allergic conjunctivitis/rhinitis/hay fever. Meaning: The study highlights associations between maternal sleep and child allergic diseases. |
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Malnutrition is frequently identified in hospitalized children, and the use of nutritional screening tools is crucial for assessing their nutritional status during their hospital admission and stay. Common tools include the Pediatric Yorkhill Malnutrition Score, Screening Tool for Assessment of Malnutrition in Pediatrics, and Screening Tool for Risk of Nutritional Status and Growth. However, these tools have varying sensitivities and specificities, and none is recommended for all hospitalized children. |
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Question: How do clinical presentations, healthcare resource utilization, and outcomes differ between children hospitalized with influenza versus coronavirus disease 2019 (COVID-19)? Finding: Patients with influenza were older, were more symptomatic, and required greater healthcare resources, including intravenous fluids, empirical antibiotics, respiratory support, and pediatric intensive care unit admission. Meaning: Influenza involves greater severity and a higher healthcare burden than COVID-19, highlighting the need for preventive strategies such as vaccination and hospital resource planning during seasonal outbreaks. |
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The prevalence of autism is increasing worldwide. The United States has the highest numbers, likely due to the availability of better treatment options. However, global disparities exist, especially in low-resource settings in which stigma, underdiagnosis, and limited services hinder care. A coordinated international approach emphasizing early screening, inclusive policies, and culturally sensitive support systems can bridge this gap and improve the outcomes for children with autism and their families worldwide. |
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Continuous glucose monitoring (CGM) has transformed pediatric type 1 diabetes care by facilitating tighter glycemic control, reducing hypoglycemia, and improving quality of life. Recent advances in CGM technology and the expansion of insurance coverage in Korea have led to its broader adoption. Emerging metrics such as time in tight range offer refined tools for individualized glycemic assessment, highlighting CGM’s evolving role in personalized pediatric diabetes management. |
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Question: What are the roles of thyroid hormones and endothelin in South Indian children with asthma? Finding: Thyroid hormone and endothelin levels were significantly elevated in South Indian children with asthma; poorly controlled cases exhibited the highest levels. Elevated thyroid-stimulating hormone and endothelin levels were correlated with asthma severity. Meaning: Serum endothelin is a potential surrogate marker for asthma severity that could aid the assessment and management of childhood asthma. |
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Question: Can cytokine levels predict low cardiac output syndrome (LCOS) in children post–cardiopulmonary bypass? Finding: Elevated interleukin (IL)-6, IL-8, and tumor necrosis factor-α levels were associated with LCOS, with an increase in IL-8 of >56 pg/mL from baseline to immediately postoperative being the strongest predictor. Meaning: Monitoring immediately postoperative IL-8 levels may help identify pediatric patients at risk of LCOS, enabling timely interventions to improve outcomes. |
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Question: Can neutrophil elastase (NE) levels predict infection— the primary cause of mortality—among children with hematological malignancies and febrile neutropenia (FN)? Finding: Elevated levels of NE were found in children with chemotherapy-induced FN and a bacterial infection. Meaning: Increased NE levels and prolonged FN are important factors associated with mortality risk. |
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Pediatric asthma can persist to adulthood and must be effectively managed. This review examined the prevalence of asthma among individuals younger than 20 years and revealed a decline from 1990 to 2021, higher rates in males, and a peak in children aged 5–9 years. Despite a projected continued decrease in prevalence by 2050, asthma will remain a significant health concern for children and adolescents. |
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Question: Postinfectious bronchiolitis obliterans (PIBO) is a chronic respiratory disease that typically develops in children after a severe respiratory infection. Bronchopulmonary dysplasia (BPD) is often comorbid in patients with PIBO. Finding: Corticosteroid pulse therapy effectively manages PIBO with or without comorbid BPD, significantly reducing exacerbations and decreasing the daily requirement for inhaled corticosteroids. Meaning: Therapeutic effects of corticosteroid pulses are rapid and sustained over time, in both groups. |
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