The heated humidification can facilitate secretion
clearance and decrease the development of bronchial
hyper-response symptoms.4 HFNC has been evaluated
in healthy subjects,3 patients with stable chronic
obstructive pulmonary disease,2 and in patients after abdominal
surgery.1 To our knowledge, the experience with
HFNC in patients with ARF is limited to sporadic cases.5,6