title: Pentax Airway Scope® vs Macintosh laryngoscope for tracheal intubation in adult patients: a systematic review and meta-analysis.
abstract: The Pentax Airway Scope(®) is a single-use optical videolaryngoscope designed to assist with difficult tracheal intubation. We systematically reviewed the efficacy of the Pentax Airway Scope with that of a conventional laryngoscope for tracheal intubation in adults with 'normal' and 'difficult' airways. We included 17 randomised controlled trials with a total of 1801 participants. We used the DerSimonian and Laird random-effects model to calculate pooled relative risk or weighted mean differences. The relative risk (95% CI) of a Cormack-Lehane grade-1 laryngeal view was 2.40 (1.76-2.49) with the Pentax Airway Scope compared with the Macintosh laryngoscope, p < 0.00001. We found no other differences between the two laryngoscopes. Despite a superior laryngeal view, the Pentax Airway Scope provides little clinical benefit over the conventional laryngoscope.
authors.affiliation: Division of Dento-Oral Anaesthesiology, Tohoku University Graduate School of Dentistry, Miyagi, Japan.
authors.forename: H
authors.initials: H
authors.lastname: Hoshijima
authors.forename: N
authors.initials: N
authors.lastname: Kuratani
authors.forename: Y
authors.initials: Y
authors.lastname: Hirabayashi
authors.forename: R
authors.initials: R
authors.lastname: Takeuchi
authors.forename: T
authors.initials: T
authors.lastname: Shiga
authors.forename: E
authors.initials: E
authors.lastname: Masaki
mesh_terms: D000328:Adult; D006801:Humans; D007442:Intubation, Intratracheal / Q000295:instrumentation*; D020704:Laryngoscopes