Clinical decision making during supervised endotracheal intubations in academic emergency medicine

Endotracheal intubation in the emergency department (ED) is a critical and time-sensitive procedure requiring both technical skills and cognitive-based reasoning. Evidence on supervised resident-attending dyads with differing years of seniority on decision making during clinical encounters with endotracheal intubations is nascent.

To investigate the intersection of postgraduate years in clinical practice between resident and attending supervisor dyads and its associations for clinician choice of laryngoscopy technique and paralytic agent during ED intubations.

We conducted a retrospective analysis of intubations performed at a multi-site, urban, academic emergency medicine training program, analyzing institutional airway registry data from 2013 to 2023. Using a standardized predictor that accounted for similarity in years of clinical experience within a dyad between a resident and their supervising attending, we performed adjusted mixed-effects logistic regression examining the association of this dyad on two primary outcomes in endotracheal intubation decision making. Our primary outcome measures were the selection of a laryngoscopy technique (either DL or VL), and of a paralytic agent (either short-acting or long-acting) analyzed as categorical variables with a linear mixed effects model, using a binomial response distribution.

We examined 2969 intubations for choice of laryngoscopy technique (n = 1117, 37.6 %) and paralytic agent (n = 967, 32.6 %). Higher adjusted odds (aOR) were associated with resident choice of DL over VL when years of experience between residents and supervising attendings were more concordant (aOR 3.05, 95 % CI: 1.1-8.2). Choice of paralytic agent was not associated with differing years of experience.

Concordant years of experience between residents and their attendings were associated with technical skill-based laryngoscopy technique choice but not for cognitive-based reasoning in paralytic agent choice among ED intubations, suggesting supervising attending's years in clinical practice may influence decision making during time-sensitive procedures.