Influence of videolaryngoscopy using McGrath Mac™ on the need for a helper to perform intubation during general anaesthesia: A multicentre randomised video - no-video trial

Objective: We hypothesized was that use of a videolaryngoscope modifies the practice of tracheal intubation. Design: Randomized single-blinded study. Setting: Three institutions: one academic, one non-profit and one profit. Participants: Inclusion criteria were patients aged 18 years minimum, requiring orotracheal intubation, without a predicted difficult intubation (Arne score <11). Non-inclusion criteria was patients requiring a rapid-sequence intubation. 300 patients were included, 271 randomised, 256 analysed: 123 in the No-Video group and 133 in the Video group. Intervention: Tracheal intubation uses a McGrath Mac™ videolaryngoscope. Patients were randomised into two groups: a Video group (screen activated) and a No-Video group (screen hidden). Primary and secondary outcome measures: The main outcome was the need for help for the anaesthesiologist or the nurse anaesthetist in performing tracheal intubation, the sequence being video recorded. Secondary outcomes inc...