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Related Experiment Videos

Does tongue size differ between patients with and without sleep-disordered breathing?

K L Do1, H Ferreyra, J F Healy

  • 1Department of Radiology, University of California, San Diego School of Medicine, USA.

The Laryngoscope
|September 13, 2000
PubMed
Summary

Patients with sleep-disordered breathing (SDB) may have larger tongue volumes, which correlate with BMI and neck circumference but not disease severity. Tongue size alone does not determine SDB severity.

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Area of Science:

  • Medical research
  • Sleep medicine
  • Radiology

Background:

  • Sleep-disordered breathing (SDB) affects numerous individuals, with potential contributing factors being investigated.
  • Tongue size is a potential anatomical factor in SDB, but its relationship with disease severity and patient characteristics requires clarification.

Purpose of the Study:

  • To investigate differences in tongue volume between patients with and without SDB.
  • To assess the correlation between tongue volume and clinical parameters such as BMI, neck circumference, age, Epworth Sleepiness Scale score, and apnea-hypopnea index (AHI).

Main Methods:

  • A prospective study involving 19 patients (9 with SDB, 10 without SDB).
  • Data collection included sleep questionnaires (Epworth Sleepiness Scale), physical examination, portable sleep studies, and magnetic resonance imaging (MRI).

Related Experiment Videos

  • Tongue volume was measured from MRI scans by an examiner blinded to patient diagnosis.

    • Main Results:

    • A trend indicated larger tongue volumes in patients with SDB compared to those without (P = .065).
    • Tongue volume showed a significant positive correlation with Body Mass Index (BMI) (P = .005) and neck circumference (P = .013).
    • No significant correlation was found between tongue volume and age (P = .23) or AHI (P = .40).

    Conclusions:

    • A statistical trend suggests larger tongue size in SDB patients, but it is independent of AHI.
    • Tongue size significantly correlates with BMI and neck circumference.
    • Tongue size variations alone may not explain SDB severity and could reflect overall body habitus in affected individuals.