Factors associated with treatment failure of high-flow nasal cannula among children with bronchiolitis: a single-centre retrospective study.

This is the first study exploring predictors of HFNC failure among Canadian children with bronchiolitis. Patient age, HFNC duration, and Modified Tal score were associated with HFNC failure. These factors should be considered when initiating HFNC for bronchiolitis to identify patients at risk for deterioration.