CPAP‐induced sphenoid sinus pressures after endoscopic sinus surgery

Abstract

Key Points Positive pressure transmitted from continuous positive airway pressure (CPAP) to the sinuses and skull base in the early post‐operative period has not been studied in live subjects and controversy exists in when to restart this post‐operatively. This study found that approximately 32.76% and 13.52% of the delivered CPAP pressures reached the post‐surgical sphenoid sinus and the mid‐nasal cavity, respectively, suggesting that surgical factors such as tissue edema, nasal packing, blood, and nasal secretions may provide a protective effect.