Palatoglossus coupling in selective upper airway stimulation

Clemens Heiser, Günther Edenharter, Murat Bas, Markus Wirth, Benedikt Hofauer

Research output: Contribution to journalArticlepeer-review

74 Scopus citations

Abstract

Objectives/Hypothesis: Selective upper airway stimulation (sUAS) of the hypoglossal nerve is a useful therapy to treat patients with obstructive sleep apnea. Is it known that multiple obstructions can be solved by this stimulation technique, even at the retropalatal region. The aim of this study was to verify the palatoglossus coupling at the soft palate during stimulation. Study Design: Single-center, prospective clinical trail. Methods: Twenty patients who received an sUAS implant from April 2015 to April 2016 were included. A drug-induced sedated endoscopy (DISE) was performed before surgery. Six to 12 months after activation of the system, patients' tongue motions were recorded, an awake transnasal endoscopy was performed with stimulation turned on, and a DISE with stimulation off and on was done. Results: Patients with a bilateral protrusion of the tongue base showed a significantly increased opening at the retropalatal level compared to ipsilateral protrusions. Furthermore, patients with a clear activation of the geniohyoid muscle showed a better reduction in apnea-hypopnea index. Conclusions: A bilateral protrusion of the tongue base during sUAS seems to be accompanied with a better opening of the soft palate. This effect can be explained by the palatoglossal coupling, due to its linkage of the muscles within the soft palate to those of the lateral tongue body. Level of Evidence: 4 Laryngoscope, 127:E378–E383, 2017.

Original languageEnglish
Pages (from-to)E378-E383
JournalLaryngoscope
Volume127
Issue number10
DOIs
StatePublished - Oct 2017

Keywords

  • Selective upper airway stimulation
  • hypoglossal nerve
  • obstructive sleep apnea
  • surgical treatment

Fingerprint

Dive into the research topics of 'Palatoglossus coupling in selective upper airway stimulation'. Together they form a unique fingerprint.

Cite this