“…The wide variety of indications reported in studies included in systematic reviews, 31,36 surveys 28,29,40,41 and guidelines 20,42 support the need for updated evidence of the effectiveness of HHHFNC for a variety of indications, not simply following ventilation. Although a recent meta-analysis has been published examining extubation failure and the incidence of BPD for HHHFNC compared with NCPAP, 36 there is also the need for a review of the evidence for other relevant outcomes and comparators.…”