This Week in Pediatrics
Pediatrics - Medscape
Is Hypertension Undertreated in Pediatrics? Medscape Medical News May 21, 2026 · Prior Auth Rules Vary Widely Across Insurers, Study Finds · Medscape Medical News May 21, 2026 · PAS 2026 · Congenital CMV Linked to Substantial Long-Term Health Issues · Medscape Medical News May 21...
Is Hypertension Undertreated in Pediatrics?
The study population included 107,884 ... at the Pediatric Academic Societies (PAS) 2026 Meeting. Significantly fewer children than adults received an ARB (12.5% vs 42.0%)....
New surgeon general’s advisory raises alarm about screen time risks for kids and teens | CNN
The new surgeon general’s advisory mirrors many of those recommendations, including creating a family media plan and modeling healthy media habits. The American Academy of Pediatrics also recommends employing the “5 Cs of Media Use,” which are for families to consider media in th...
Research of the Day
Duration of Breastfeeding and Childhood Obesity Risk: Meta-Analysis of 150 Cohort Studies
This comprehensive meta-analysis synthesized data from 150 cohort studies involving over 2.5 million children to examine the relationship between breastfeeding duration and obesity risk. Children breastfed for 6+ months showed a 22% reduction in obesity risk at ages 5-10 compared to never-breastfed children.
Key findings: (1) Each additional month of breastfeeding associated with 3% lower obesity odds; (2) Effects persisted after adjusting for socioeconomic status and maternal BMI; (3) Exclusive breastfeeding showed stronger effects than mixed feeding.
These findings strengthen breastfeeding support recommendations. Counsel expectant parents on breastfeeding benefits, ensure access to lactation support, and address barriers to continued breastfeeding.
Popular Beliefs
ADD/ADHD is caused by poor parenting or too much sugar
What the evidence shows: ADHD has strong genetic and neurobiological components. While environment can influence symptom severity, poor parenting and diet do not cause ADHD. Evidence-based treatments include behavioral therapy and, when appropriate, medication. Blaming parents is harmful and delays effective intervention.
Teething causes high fevers and diarrhea
What the evidence shows: While teething may cause mild symptoms (gum irritation, drooling, slight temperature elevation), it does not cause high fever (>102°F/38.9°C) or diarrhea. These symptoms should prompt evaluation for other causes. Attributing significant illness to teething may delay diagnosis of serious conditions.
Shaving makes hair grow back thicker and darker
What the evidence shows: Shaving removes hair at the skin surface, leaving a blunt tip that may feel coarser as it grows out. However, it does not affect hair thickness, color, or growth rate. This is an optical illusion from the blunt vs. tapered hair shaft.
Behaviors
Secondhand Smoke Exposure and Cognitive Development: Cohort Study
This cohort study measured cotinine levels and cognitive outcomes in 2,000 children at multiple time points. Even low-level secondhand smoke exposure was associated with measurable effects on attention and working memory.
Key findings: (1) Detectable cotinine associated with 5-point IQ difference; (2) Higher rates of learning difficulties; (3) No safe threshold identified—any exposure had measurable effects.
Screen for smoke exposure at well visits. Counsel caregivers that even 'smoking outside' may not fully protect children. Connect families with smoking cessation resources.
Genetics
Genetic Predictors of Peanut Allergy Persistence
Genome-wide association study identifies genetic variants associated with peanut allergy persistence versus resolution. Children with certain variants are more likely to outgrow their allergy, informing timing of oral food challenges.
Key findings: (1) 4 genetic variants strongly associated with persistence; (2) Genetic testing could reduce unnecessary avoidance and challenges; (3) Environmental factors remain important in allergy development.
Genetic testing may soon help predict which children will outgrow allergies. For now, continue regular reassessment with IgE testing and oral challenges as clinically indicated.