"Most downloaded" Articles are from the articles published in 2024 during the last six months.
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Question: Can the revised Japanese classification predict severe bronchopulmonary dysplasia (BPD) early in preterm infants? Finding: Small for gestational age and bubbly/cystic chest radiographic patterns were independently associated with severe BPD, and subtypes I and III showed particularly strong associations. Meaning: This classification may facilitate early risk stratification and guide timely supportive strategies to prevent progression to severe BPD. |
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· Excessive screen time in preschoolers is associated with neurodevelopmental delays, particularly during the early years of life. · Parental supervision and national guidelines are critical in mitigating the negative impacts of excessive screen time and fostering healthy media habits in preschoolers. |
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To prevent respiratory syncytial virus (RSV)-associated lower respiratory tract infections, a single dose of nirsevimab, a long-acting monoclonal antibody, is recommended for all neonates born during the RSV season (October to March) and all infants younger than 6 months old at the start of the RSV season. Nirsevimab should be administered shortly after birth to neonates and just before or early in the season to infants entering their first RSV season. |
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Question: Is prolonged monitoring of regional cerebral oxygen saturation (rcSO2) and hemodynamic parameters a feasible approach? Can these measures predict the neurological outcomes in extremely preterm infants? Finding: We used a neurocritical care bundle from birth to discharge or term-equivalent age. Infants with poor outcomes had significantly lower rcSO2 values. Meaning: Understanding rcSO2 and hemodynamic parameters may help manage cerebral hypoxia and reduce neurological complications in extremely preterm infants. |
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· Childhood blood pressure (BP) is significantly associated with adult hypertension and cardiovascular disease. · Despite ongoing debate regarding the need for regular BP screening and early pharmacotherapy in children, the benefits of optimizing BP throughout childhood are clear. · Childhood presents a critical window for normalizing BP through lifestyle modifications such as reducing sodium intake and increasing physical activity to promote lifelong cardiovascular health and prevent longterm complications. |
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Excessive screen time in children is linked to obesity, overweight, sedentary behavior, depression and mood disorders, myopia, behavioral changes, sleep disturbances, attention deficit hyperactivity disorder, among others. Polymorphisms in genes like FTO, CACNA1D, and DRD2 could further increase these risks. Implementing strategies such as limiting screen use, creating screen-free zones, and monitoring content is essential to mitigate adverse physical and mental health effects in the pediatric population. |
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Question: Is macronutrient intake, particularly that from human milk, distinctly associated with the growth of preterm infants? Finding: Total protein and fat intake derived from human milk and fortifiers showed distinct positive associations with weight gain velocity. Meaning: Particular attention to protein and fat composition during individualized human milk fortification can optimize weight gain in preterm infants. |
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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: 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: What is the diagnostic utility of whole exome sequencing (WES) and whole genome sequencing (WGS) in unexplained neurodevelopmental disorders (NDDs)? Finding: WES and WGS achieved a combined diagnostic yield of 39.1% in children with NDDs. Novel variants accounted for over half the pathogenic findings, and trio-based or phenotype-driven testing improved the diagnostic rate. Meaning: Comprehensive genomic sequencing integrated with clinical phenotyping enhances diagnostic yield among children with NDDs. |
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Question: What can predict immunoglobulin A vasculitis (IgAV) recurrence, and when does it occur? How do childhood- and adolescent-onset IgAV compare? Finding: The IgAV recurrence rate was 35.6%. It usually occurred within 12 months and was associated with corticosteroids treatment. Meaning: Childhood-onset IgAV more commonly featured gastrointestinal and musculoskeletal manifestations and required hospitalization. Adolescent-onset IgAV more commonly featured renal involvement. Vigilant monitoring for recurrence is necessary, particularly with corticosteroids treatment. |
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Myopia is a growing global public health concern because of its association with irreversible vision loss such as myopic traction maculopathy, rhegmatogenous retinal detachment, and glaucoma. The effective prevention of myopia in childhood requires a multidisciplinary approach that integrates ophthalmologic care with lifestyle, nutrition, and sleep interventions. Early detection through regular visual screening in schools and primary care settings and timely ophthalmology referrals are critical to preventing high myopia. |
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Question: What are the roles of linezolid, intravenous immunoglobulin (IVIG), and corticosteroids in pediatric invasive group A streptococcal infection (iGAS)? Can any improve outcomes beyond beta-lactams and clindamycin? Finding: Two of 46 patients with iGAS died. Nearly all received beta-lactams plus clindamycin. Linezolid was effective in refractory cases. IVIG and corticosteroids had variable efficacies. Meaning: Linezolid may be valuable in refractory cases. IVIG may be considered in severe presentations. The role of corticosteroids remains less clearly defined. |
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Height, weight, and body mass index percentiles should be tracked in routine childhood health checkups to address the age of adiposity rebound in early childhood. Comprehensive interventional lifestyle counselling in primary practice after growth and nutritional status assessments might be an early, effective strategy for preventing obesity and decreasing the double burden of disease in later life. Therefore, there is an urgent need for a cooperative and supportive health care system. |
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Question: How is arterial blood pressure related to cerebral oxygenation during the immediate postnatal transition in neonates? Finding: Among preterm infants requiring respiratory support, cerebral oxygenation was associated with diastolic and mean arterial pressures, indicating passive pressure perfusion. Meaning: Compromised preterm infants are vulnerable to impaired autoregulation with cerebral oxygenation fluctuations, highlighting the need for hemodynamic and cerebral monitoring plus routine monitoring of arterial oxygen saturation and heart rate. |
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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: Does atrial septal defect (ASD) physiology affect postrepair mitral valve growth in patients with coarctation of the aorta or an interrupted aortic arch? Finding: Mitral valve growth occurred after biventricular repair but not single-ventricle palliation, particularly in patients with small valves and low ASD pressure gradients. Meaning: The ASD pressure gradient determines mitral valve growth and should guide surgical strategies in patients with borderline hypoplastic left heart syndrome. |
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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: Does high-protein enteral nutrition better increase the average nitrogen balance (NB) and decrease the intestinal fatty acid-binding protein (I-FABP) level of critically ill postoperative children than standard-protein enteral nutrition? Finding: The study demonstrated a significant increase in average NB but no significant decrease in I-FABP levels in the high- versus low-protein group. Meaning: These findings suggest that high-protein enteral nutrition can improve NB in critically ill postoperative children, thereby supporting their recovery. |
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· South Korea faces a severe demographic crisis with the lowest global fertility rate. Despite significant investments, the total fertility rate continues to decline. · It is necessary to fully mobilize national capabilities and execute comprehensive strategies that focus on both intangible and tangible values. · Immediate and decisive action is essential to addressing these challenges effectively. |
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Question: What are the clinicopathological features and outcomes of pediatric C3 glomerulopathy (C3G) in resource-limited settings? Finding: Children with C3G in resource-limited settings have significant morbidities, and most experience kidney sequelae despite treatment. Electron microscopy was performed in only 50% of our patients, while none received complement assays or genetic testing. Meaning: Pediatric C3G presentation, management, and kidney outcomes vary. Its thorough evaluation and management are challenging in resource-limited settings. |
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Question: What are the most common enteric pathogens in acute diarrhea among children younger than 5 years of age, and which age group is most susceptible? Finding: Bacteria were the most common causative microorganisms of diarrhea, followed by viruses, parasites, and fungi. The 1–2-year age group was the most commonly affected. Meaning: There is a need to formulate preventive strategies targeting children exposed to enteric pathogens to limit diarrhea. |
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Question: What genes are commonly altered in mother-neonate dyads immediately after shared exposure to preeclampsia? Finding: Perinatal/peripartum gene expression in preeclampsia is context-dependent, involves diverse signaling pathways, and is associated with some perinatal features. Meaning: Our results may help build the fundamentals for managing future cardiometabolic risks in these populations. Further investigation of the long-term influence of these candidate genes on cardiometabolic phenotypes is required. |
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Question: How do body mass index (BMI) and metabolic markers change over time in severely obese Korean children and adolescents receiving only lifestyle modifications? Finding: Among 124 participants, BMI z scores decreased modestly over 2.6 years, primarily in younger prepubertal boys. However, most remained severely obese, with minimal improvement in body composition or metabolic markers. Meaning: Lifestyle interventions alone have limited efficacy for severe pediatric obesity. Early and more intensive treatments are required. |
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Question: Is helmet therapy effective for positional plagiocephaly? What factors influence helmet therapy efficacy for positional plagiocephaly? Finding: Helmet therapy is effective for infants with moderate to severe positional plagiocephaly, and its effectiveness is influenced by age at treatment initiation, severity of head asymmetry, and daily duration of helmet wear. Meaning: Pediatricians should initiate helmet therapy for positional plagiocephaly sooner, ideally before 9 months of age, to maximize treatment efficacy. |
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Question: Can pediatric autoimmune hemolytic anemia (AIHA) be effectively managed using first-line steroids? Finding: In this single-center study, pediatric patients with AIHA achieved normal hemoglobin levels within 16.5 days (range, 9.0–22.0 days) of first-line steroid treatment and maintained effective responses for 2 months. Meaning: These outcomes highlight the efficacy of steroid treatment in pediatric versus adult AIHA and underscore the need for multicenter trials to establish standardized treatment guidelines. |
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· Neonatal ichthyosis-sclerosing cholangitis (NISCH) syndrome is a rare autosomal recessive disorder characterized by cholestasis and manifestations such as generalized ichthyosis, alopecia, and dental anomalies. · The clinical features of NISCH syndrome are distinct and necessitate an early genetic diagnosis. · The disease phenotype can vary significantly, ranging from no liver involvement and transient neonatal cholestasis to end-stage liver disease. · Management requires a multidisciplinary approach with long-term follow-up. |
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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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Question: Does epilepsy affect neurocognitive functions in pediatric drug-resistant focal epilepsy? Finding: Diffusion magnetic resonance imaging (MRI) connectome could identify new imaging markers for seizure-associated structural abnormalities. New markers reflect deviations of local efficiency in neurocognitive networks and provide outstanding discretionary capacity for neurocognitive impairments, achieving an accuracy range of 90%–98% in the independent test patients. Meaning: Supplementary MRI-driven decisions could be performed for personalized interventions to mitigate long-term neurocognitive effects. |
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 © 2026 by Korean Pediatric Society.





