Imaging for the snoring and sleep apnea patient

Area of Science:

• Medical Imaging
• Sleep Medicine
• Otolaryngology

Background:

• Obstructive sleep apnea (OSA) pathogenesis and treatment mechanisms are increasingly understood through advanced upper airway imaging.
• Static and dynamic imaging studies analyze upper airway structure and function during wakefulness and sleep.

Purpose of the Study:

• To review the role of upper airway imaging in understanding OSA.
• To highlight the importance of imaging in evaluating therapeutic interventions.

Main Methods:

• Review of static and dynamic imaging studies.
• Examination of upper airway anatomy and function during wakefulness and sleep.
• Analysis of imaging findings related to weight loss, mandibular repositioning devices, and surgery.

Main Results:

• Imaging emphasizes the role of lateral pharyngeal walls, tongue, and soft palate in airway caliber modulation.
• Upper airway imaging elucidates anatomical changes associated with weight loss, oral appliances, and surgery.
• MR imaging, nasopharyngoscopy, and cephalometrics are key imaging modalities for specific OSA interventions.

Conclusions:

• Upper airway imaging is essential for patients undergoing upper airway surgery (e.g., UPPP) and potentially for oral appliance evaluation.
• Imaging provides a framework for understanding airway closure in OSA, potentially leading to improved treatments.
• Further investigations using imaging may yield more effective therapeutic options for sleep apnea patients.