Randomized Controlled Trial Between Auto-titration and Manual Titration of Non-invasive Ventilation in Obesity Hypoventilation Syndrome

Manual Group: during a complete polysomnography, adding transcutaneous capnography and the basic ventilators curves, the ventilators setting will be adjusted in order to correct respiratory events and patient-ventilator asyncrony. A 10 hours face-to-face investigator training meeting is programmed before opening the inclusion period.

Automatic Group: the A40 ventilator in the automatic AVAPS mode will be adjusted in order to achieve 8-10 ml/kg of ideal weight.