Upper airway sensory function in children with obstructive sleep apnea syndrome
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Updated: Jun 11, 2026

Drug-Induced Sleep Endoscopy (DISE) with Target Controlled Infusion (TCI) and Bispectral Analysis in Obstructive Sleep Apnea
Published on: December 6, 2016
Ignacio E Tapia1, Preetam Bandla, Joel Traylor
1Sleep Center, The Children's Hospital of Philadelphia, University of Pennsylvania School of Medicine, Philadelphia, PA 19104, USA.
Insights
Children with obstructive sleep apnea syndrome (OSAS) have reduced sensation in their tongue and palate. This impaired upper airway sensation may contribute to breathing issues during sleep.
Area of Science:
- Pediatric Sleep Medicine
- Neuroscience
- Otolaryngology
Background:
- Obstructive sleep apnea syndrome (OSAS) in children is linked to impaired physiological responses during sleep.
- A potential contributing factor is dysfunction in the upper airway sensory pathway.
Purpose of the Study:
- To investigate whether children with OSAS exhibit diminished upper airway sensation compared to healthy controls.
- To explore the afferent limb of the upper airway sensory pathway in pediatric OSAS.
Main Methods:
- A case-control study involving children aged 6-16 years with OSAS and age/BMI-matched controls.
- Two-point discrimination (TPD) was measured using modified calipers on the anterior tongue, interior cheek, and hard palate during wakefulness.
Main Results:
- Children with OSAS demonstrated significantly impaired TPD in the anterior tongue and hard palate compared to controls.
- TPD in the interior cheek did not differ significantly between the OSAS and control groups.
- The OSAS group had a significantly higher apnea-hypopnea index than the control group.
Conclusions:
- Children with OSAS exhibit impaired tactile sensation in the anterior tongue and hard palate while awake.
- This sensory deficit may stem from a primary sensory abnormality or be secondary to OSAS-related nerve damage or hypoxemia.
- Further research is warranted to assess sensory function after OSAS treatment.
Study Objectives:
Children with the obstructive sleep apnea syndrome (OSAS) have impaired responses to hypercapnia, subatmospheric pressure, and inspiratory resistive loading during sleep. This may be due, in part, to an impairment in the afferent limb of the upper airway sensory pathway. Therefore, we hypothesized that children with OSAS had diminished upper airway sensation compared to controls.
Design:
Case-control.
Setting:
Academic hospital.
Participants:
Subjects with OSAS aged 6-16 years, and age- and BMI-matched controls.
Interventions:
Two-point discrimination (TPD) was measured during wakefulness with modified calipers in the anterior tongue, right interior cheek, and hard palate.
Results:
Thirteen children with OSAS and 9 controls were tested. The age (mean +/- SD) for OSAS and controls was 11 +/- 4 vs. 13 +/- 2 years (NS); OSAS BMI Z score 2.4 +/- 0.5, controls 2.2 +/- 0.5 (NS); OSAS apnea hypopnea index 31 +/- 48, controls 0.4 +/- 0.5 events/hour (P < 0.001). Children with OSAS had impaired TPD in the anterior tongue (median [range]) = 9 [3-14] mm, controls 3 [1-7], P = 0.002) and hard palate (OSAS 6 [3-9] mm, controls 3 [1-4], P < 0.001). TPD in the cheek was similar between the groups (P = 0.12).
Conclusion:
TPD in the anterior tongue and hard palate was impaired in children with OSAS during wakefulness. We speculate that this impairment might be due to a primary sensory function abnormality or secondary to nerve damage and/or hypoxemia caused by OSAS. Further studies after treatment of OSAS are needed.
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