Sleep apneic episodes increase after general anaesthesia up to the third postoperative night. A mandibular advancement device, called MAD, is a small device that is inserted in the patient's mouth during the night and allows the advancement of the mandible, preventing sleep apneic episodes. The objective of this randomized controlled trial is to determine whether a MAD reduces the impact of general anaesthesia on the increase of the sleep apneic episodes in the postoperative period. All patients will have their sleep-related respiratory data measured using a portable respiratory polygraphy recorder (ResMed Embletta® system). This portable recorder allows a non-invasive recording of nasal airflow through a nasal cannula, oxygen saturation (SpO2) via finger pulse oximetry, respiratory efforts through thoracic and abdominal belts, and body position.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
PREVENTION
Masking
DOUBLE
Enrollment
100
Patients will have a mandibular advancement device during the first postoperative night
Centre Hospitalier Universitaire Vaudois and University of Lausanne
Lausanne, Canton of Vaud, Switzerland
Supine AHI
Apnea-Hypopnea index in the supine position
Time frame: Postoperative night 1
Global AHI
Gobal Apnea-Hypopnea index: the number of apnoea and hypopnoea per hour of recording
Time frame: Postoperative night 1
OAI
Obstructive apnoea index: the number of apnoea from an obstructive origin per hour of recording
Time frame: Postoperative night 1
CAI
Central apnoea index: the number of apnoea from a central origin per hour of recording
Time frame: Postoperative night 1
Hypopnea index
Hypopnea index: the number of hypopnoea per hour of recording
Time frame: Postoperative night 1
ODI
Obstruction desaturation index: number of oxygen desaturation (≥3%) episodes per hour of sleep.
Time frame: Postoperative night 1
Respiratory Rate
Respiratory Rate
Time frame: Postoperative night 1
Percentage of supine time
Percentage of supine time
Time frame: Postoperative night 1
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