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A Smarter Screen for Sleep Apnea Stimulation

A four-factor staging system stratified response rates from 90.9% to 37.5% in a retrospective cohort study, although the model showed only moderate discrimination (C statistic, 0.68) and requires external validation

  • By

  • Kathryn Wighton

  • May 8, 2026

  • 4 min

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  • 1

    A clinical staging system may stratify response to hypoglossal nerve stimulation in obstructive sleep apnea patients based on four baseline factors.

  • 2

    In a study of 119 patients, 69.7% met response criteria, with median apnea-hypopnea index decreasing significantly post-implantation.

  • 3

    Key factors associated with better response included smaller neck circumference, BMI below 30, preimplant AHI below 30, and absence of comorbidities.

  • 4

    The study's four-category staging system showed moderate discrimination, with a C statistic of 0.68, indicating limited predictive performance.

  • 5

    Findings require validation in independent cohorts, and the study's limitations include a predominantly male and White population, affecting generalizability.

Original Source(s)

A Smarter Screen for Sleep Apnea Stimulation

  • by Kathryn Wighton

  • May 8, 2026

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