I am writing to request your participation in an online survey of high-flow nasal cannula oxygen therapy (HFNC) weaning practices in the United Kingdom. Although HFNC has become an established mode of respiratory support in paediatric patients, there is limited literature on how best to wean and discontinue the treatment.

The purpose of this survey will be to summarise current weaning practices in the UK and to identify facilitators and barriers to HFNC weaning. This is part of an MSc project I am carrying out with Imperial College London.

To be eligible to participate, you must be a health professional involved in monitoring and weaning of HFNC in paediatric patients. Consent is voluntary and all responses are anonymised. Please read the attached Participant Information Sheet for further information about this study. We welcome as many responses as possible from each paediatric unit.