There are no data available about effectiveness of Nasal High-flow (NHF)in chronic respiratory insufficiency.
Eleven COPD patients with stable hypercapnia were adjusted to NHF-system with a flow of 20 l/min. After six weeks patients were switched to non-invasive ventilation (NIV) for another six weeks period.
NHF led to significant decreases in resting pCO 2. Between the devices we found no differences in pCO 2 levels.