Changes in site of obstruction in obstructive sleep apnea patients according to sleep position: A DISE study

Objectives/Hypothesis This study aimed to evaluate changes in obstruction site in obstructive sleep apnea (OSA) patients according to sleep position. Study Design Prospective case series. Methods Eighty‐five patients who had undergone level 1 sleep study and drug‐induced sleep endoscopy in the supine and lateral positions were included. Obstruction sites were classified as soft palate (SP), tongue base (TB), lateral wall (LW), and larynx (LX)....