Physiological Effects of HFNC During Exercise in Patients With Fibrosing Interstitial Lung Diseases

Evaluation of the Physiological Effects of High Flow Nasal Canulae Oxygen Therapy During Exercise in Patients With Fibrosing Interstitial Lung Diseases

in this study, the investigators aim to describe the effects of highflow nasal canulae oxygen therapy (HFNC) on respiratory muscle function during exercise in patients with fibrosing interstitial lung diseases (ILD) during an endurance test

Inclusion Criteria:

• Cared for as part of a respiratory rehabilitation program (ADIR association)
• Presenting diffuse fibrosing interstitial pneumonitis, documented by CT scan data and whatever its etiology
• Presenting severe hypoxemia in ambient air (SpO2<90%) during an exercise test (6-minute walk test or functional exercise test)

Exclusion Criteria:

• Patient with a contraindication to carrying out a respiratory rehabilitation program
• Patient having presented an exacerbation of PID, pneumothorax or pneumomediastinum in the 3 months preceding potential inclusion
• Tracheostomized patient
• Patient with a contraindication to the placement of a nasogastric tube
• Pregnant or breastfeeding women or women of childbearing age without effective means of contraception (a pregnancy test will be carried out)
• Protected adult patient (guardianship or curatorship)
• Patient deprived of liberty by court or administrative decision
• Refusal of patient participation or consent