No possibility to recruit.

The purpose of the study is to assess the therapeutic education of patients with chronic respiratory failure who start to be treated with non invasive ventilation and during the first six months of ventilation.

Therapeutic education about non invasive ventilation in patients with chronic respiratory failure and alveolar hypoventilation is assessed during the first six months of ventilation thanks to a questionnaire. Moreover, the impact of this therapeutic education on non invasive ventilation compliance, blood gas, dyspnea and nocturnal desaturation is assessed.

Inclusion Criteria:

• Patients with chronic respiratory failure
• with alveolar hypoventilation required non invasive ventilation
• Adults and non-vulnerable subject
• Fluency in French

Exclusion Criteria:

• Age under eighteen years old
• Patient with guardianship
• No french-speaking
• Severe cognitive abnormalities
• No criteria to introduce non invasive ventilation

Patients