The first-line treatment of severe Obstructive Sleep Apnea/Hypopnea Syndrome (OSAHS) is nocturnal ventilation with Continuous Positive Airway Pressure (CPAP). and The second-line treatment is the mandibular advancement orthosis (MAO)].~CPAP is the most effective treatment to reduce the apnea-hypopnea index (AHI). However, its tolerance is sometimes difficult, causing many discontinuations.~The purpose of this review is to evaluate a vascular morbimortality criteria:~Cardiovascular: myocardial infarction, heart failure, rhythm disorder~Neurological: transient or non transient stroke~ophthalmologic: anterior ischemic optic neuropathy, occlusion of the central artery or central retinal vein occlusion
a monocentric,non interventional, prospective study to compare cardiovascular risk in patients with Obstructive Sleep Apnea/Hypopnea Syndrome treated with Continuous Positive Airway Pressure (CPAP) and Mandibular Advancement Orthosis.