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Obstructive Sleep Apnea in Children With Beckwith-Wiedemann Syndrome.

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Obstructive sleep apnea (OSA) is common in children with Beckwith-Wiedemann syndrome (BWS), particularly in younger patients and those with more severe symptoms. Macroglossia is a key feature associated with OSA in BWS patients.

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Area of Science:

  • Pediatric Endocrinology
  • Genetics
  • Sleep Medicine

Background:

  • Beckwith-Wiedemann syndrome (BWS) is a rare pediatric overgrowth disorder.
  • Macroglossia is a common feature in BWS, potentially leading to airway obstruction.
  • The prevalence and severity of obstructive sleep apnea (OSA) in children with BWS are not well understood.

Purpose of the Study:

  • To investigate the prevalence of OSA in children with BWS.
  • To explore the relationship between OSA severity and BWS genotype/phenotype.
  • To identify risk factors for OSA in this population.

Main Methods:

  • Retrospective review of medical records for 26 children with BWS.
  • Polysomnography, genetic testing, and clinical assessments were performed.
  • Analysis of obstructive apnea-hypopnea index (OAHI) in relation to age, genotype (IC2 LOM), and clinical features.

Main Results:

  • 76.9% of children with BWS had an OAHI > 2 events/h, indicating OSA.
  • OSA severity (OAHI) was significantly higher in children younger than 6 months.
  • No significant difference in OAHI was found between children with IC2 LOM and other BWS genetic causes, but OAHI correlated positively with BWS clinical score.

Conclusions:

  • There is a high prevalence of OSA in children with BWS, especially those with macroglossia.
  • Younger children and those with more pronounced BWS phenotypic features are at higher risk for OSA.
  • Clinical assessment and monitoring for OSA are crucial in pediatric BWS patients.