Sleep Findings
Polysomnography (PSG) was performed during the 24-hour HEMII-pH period. Patients were invited to fulfill the French version of Epworth Slippiness Scale (ESS)11 and the Pichot fatigue scale.12 Regarding the PSG data, the following data were extracted by a board-certified sleep physician (GA) using the Cidelec v2.2.6. software (Cidelec, Loire, France): Apnea-Hypopnea Index (AHI); total number of arousals; number of arousals/hour; % of time with O2 saturation level<90%; and the 4 sleep phases including the paradoxical sleep. OSAS status was retrieved from the home sleep study findings considering an AHI≥ 5 per hour as a positive OSAS diagnosis. OSAS severity was scored according to the report of the American Academy of Sleep Medicine based on the patient’s AHI: mild (5-14 events/hour); moderate (15-30 events/hour); or severe (>30 events/hour).13 Patients with AHI<5 were excluded.