Hypoglossal Nerve Stimulation Outcomes in Pediatric Trisomy 21 Patients with Overweight or Obesity

Jeffrey C Mecham1, Hannah Gibbs1, Trenton House2

  • 1Department of Otolaryngology, Head and Neck Surgery, Mayo Clinic, Phoenix, Arizona, U.S.A.

The Laryngoscope
|November 9, 2024
PubMed

Insights

Body mass index (BMI) does not impact hypoglossal nerve stimulator (HNS) outcomes in pediatric patients with Down syndrome. Obese and non-obese children with Down syndrome showed similar favorable responses to HNS therapy.

Area of Science:

  • Pediatric Otolaryngology
  • Sleep Medicine
  • Genetics

Background:

  • Obstructive sleep apnea (OSA) is prevalent in pediatric patients with Down syndrome (DS).
  • Hypoglossal nerve stimulator (HNS) implantation is an emerging treatment for OSA in this population.
  • The impact of body mass index (BMI) on HNS outcomes in pediatric DS patients is not well-established.

Purpose of the Study:

  • To evaluate the association between BMI and HNS implantation outcomes in pediatric patients with Down syndrome.
  • To compare HNS outcomes between overweight/obese and non-obese pediatric DS patients.

Main Methods:

  • Retrospective cohort study of pediatric patients (<21 years) with DS who underwent HNS implantation (2022-2024).
  • Patients were categorized based on BMI percentile (overweight/obese vs. non-obese).
  • Primary outcome was the reduction in apnea-hypopnea index (AHI) post-implantation.

Main Results:

  • Twenty patients (11 overweight, 8 obese) received HNS implants.
  • No significant correlation was found between BMI percentile and AHI reduction (r=0.06, p=0.8).
  • Obese and non-obese groups showed comparable preoperative AHI, postoperative AHI, and AHI reduction (83.8% obese vs. 81.9% non-obese).

Conclusions:

  • BMI status (obesity defined as BMI >95th percentile) does not significantly affect postoperative AHI outcomes following HNS implantation in pediatric DS patients.
  • HNS therapy is effective in reducing AHI in both obese and non-obese pediatric DS patients.
Abstract

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