Effect of Laryngoscope Blade Size on First Pass Success of Tracheal Intubation in Critically Ill Adults.

ABSTRACT: Tracheal intubation (TI) is a common procedure in critical care, often performed with a Macintosh curved blade used for direct laryngoscopy (DL). Minimal evidence informs the choice between Macintosh blade sizes during TI. We hypothesized that Macintosh 4 blade would have higher first-attempt success than Macintosh 3 blade during DL.

Design

Retrospective analysis using a propensity score and inverse probability weighting of data from six prior multicenter randomized trials.

Setting and participants

Adult patients who underwent nonelective TI at participating emergency departments and ICUs. We compared the first-pass success of TI with DL in subjects intubated with a size 4 Macintosh blade on the first TI attempt to subjects with a size 3 Macintosh blade on the first TI attemp

SUBMITTER: Landefeld KR 

PROVIDER: S-EPMC9990830 | biostudies-literature | 2023 Mar

REPOSITORIES: biostudies-literature