Home High Flow Oxygen to Reduce Acute Exacerbation of COPD

"HFOT will be delivered validated medical devices and established as follow:~* Patient will be acclimatized to HFOT which will aim to achieve a flow of air of 30L/min at a temperature of 34°C using dedicated nasal canula.~* Once patient acclimatized, oxygen will be entrained in the HFOT device at a flow that will aim to achieve a saturation \> 90%. An arterial blood gas will be performed with such oxygen delivery, flowrate and temperature to ensure a PaO2 ≥ 8kPa"

LTOT delivery will be performed according to French guidelines