Should lateral wall collapse be a contraindication for hypoglossal nerve stimulation?

Area of Science:

• Otolaryngology
• Sleep Medicine
• Surgical Outcomes

Background:

• Obstructive sleep apnea (OSA) treatment often involves hypoglossal nerve stimulation (HNS).
• Oropharyngeal lateral wall collapse is a key factor in OSA.
• The impact of lateral wall collapse on HNS outcomes requires further investigation.

Purpose of the Study:

• To evaluate the effect of oropharyngeal lateral wall collapse severity on HNS treatment outcomes.
• To identify predictors of surgical success in HNS patients.

Main Methods:

• A retrospective analysis of 111 HNS patients was conducted.
• Patients were categorized by lateral wall collapse severity (Complete, Partial, None) via DISE.
• Outcomes including AHI reduction, ESS scores, and surgical success rates were compared between groups.

Main Results:

• No significant differences in baseline characteristics or adherence were observed between groups.
• Patients with Partial/None lateral wall collapse achieved significantly higher surgical success rates (84.84%) compared to those with Complete collapse (66.67%).
• Complete lateral wall collapse was associated with lower surgical success in HNS.

Conclusions:

• Complete lateral wall collapse is a negative predictor for HNS surgical success.
• Partial or no lateral wall collapse indicates a higher likelihood of successful HNS treatment.
• Oropharyngeal anatomy assessment is crucial for patient selection in HNS therapy.