Nasal High-Flow in COPD

The study will be a parallel group 2‐arms non blinded multicentre 2‐phase randomised controlled trial comparing the effect of nHFT on subjective recovery in COPD patients admitted to the hospital for a COPD exacerbation as compared to the standard care. First, we will define the optimal setting and gain more insight in insight in mechanisms why and how nHFT might work in a subpopulation, then continuing with inclusion in the randomized controlled trial including the 136 patients in total to prove efficacy in terms of patient‐centered outcomes. To get more insight in mechanisms why and how nHFT might work we incorporate: a) neuromechanical investigations and analyses; and b) anatomical investigations, both in patients and in experimental models, the latter in order to minimise patient effort.