Obstructive sleep-disordered breathing, including obstructive sleep apnea (OSA), represents a significant yet underdiagnosed condition in the pediatric population, particularly among adolescents with obesity. The tongue is a central anatomical contributor to upper airway collapsibility; however, its biomechanical properties have been investigated almost exclusively in adult populations, leaving a critical gap in knowledge regarding younger individuals. This study aims to assess tongue biomechanical and echographic characteristics using quantitative ultrasound modalities - shear-wave elastography (SWE), acoustic attenuation, and echo intensity - in adolescents aged 12 to 18 years with obesity and obstructive sleep disorders. The study adopts a mixed design combining (1) an observational cross-sectional comparison between participants with obesity and OSDB and age- and sex-matched healthy controls at baseline, and (2) a prospective longitudinal cohort component evaluating changes in tongue ultrasound characteristics over the course of a 30-week multidisciplinary inpatient weight-loss program delivered as standard care at the Zeepreventorium (De Haan, Belgium). An additionnal methodological objective consists in determining intra-rater and inter-rater reliability of the ultrasound acquisition protocol providing a reproducible framework for future studies.
Age range
12 Years – 18 Years
Sex
ALL
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Tongue stiffness
Timeframe: at baseline and after 30-weeks weight loss program
Tongue thickness
Timeframe: at baseline and after 30 weeks weight loss program
Echo Intensity
Timeframe: at baseline and after a 30 weeks weight loss program
Acoustic Attenuation
Timeframe: at baseline and after a 30 weeks weight loss program