Procedures
bronchiolitis
BRONCHIOLITIS
Trained research assistants (none of whom was a coauthor of this study) prescreened potentially eligible patients and confirmed the diagnosis of bronchiolitis with the treating physician. Once the planned discharge home had been communicated and permission to be approached for research obtained, the assistants confirmed eligibility, obtained consent, and collected baseline characteristics. The lack of knowledge about potential differences in benefit between the study devices was emphasized to the families.The assistants provided the families with the assigned suctioning devices and instructed them in their proper use, in person plus via a prerecorded video. The parents were instructed to suction the nose before each feeding for 72 hours and to avoid using nonassigned devices. The 72-hour intervention period was chosen because most infants with bronchiolitis experience unscheduled revisits within this time.The research assistants recorded the vital signs measured by the ED nurses before discharge. A follow-up questionnaire was sent to the caregiver’s email address via secure SickKids REDCap database at 72 hours and was reviewed by an intervention-blinded study manager (J.S. or M.R.) (eAppendix 1 in 