Change in Tongue Strength and Fatigue After Upper Airway Stimulation Therapy

Change in Tongue Strength and Fatigue After Implantation of Upper Airway Stimulation System

Upper airway stimulation (UAS) is an effective surgical alternative for patients with obstructive sleep apnea (OSA) who fail continuous positive airway pressure (CPAP) therapy. This stimulation could lead to alterations in tongue strength and fatigability which could alter treatment outcome. The aim of the study is to investigate if UAS alters tongue strength and fatigability.

Inclusion Criteria:

• 18 years old or older
• upper airway stimulation group: Upper airway stimulation system implanted at least 4 weeks ago
• OSA group: OSA confirmed by 18-channel inpatient overnight polysomnography (PSG)
• test group: No medical history for OSA and Epworth Sleepiness Scale (ESS) below 11

Exclusion Criteria:

• history of a neuromuscular disorder
• previous tongue surgery