Introduction
Obstructive sleep apnea syndrome (OSAS) is a prevalent disorder affecting 2% to 7% of U.S. adult population [1,2]. OSAS is associated with cardiovascular, cognitive, stroke disorders, and death [2,3]. The identification of the upper airway collapse site may be performed by drug-induced sleep endoscopy (DISE), which provides useful information for the treatment strategy [1]. The classical DISE method involves the use of continuous propofol infusion in operating room [1]. This approach is usually performed in ambulatory and requires the patient monitoring after the anesthesia. In this preliminary study, we assessed the feasibility, safety and patient satisfaction of hypnosis-induced sleep endoscopy (HISE).