N/A
Completed N=100
McGRATH MAC Video Laryngoscope
Intubation; Difficult
Source: ClinicalTrials.gov NCT02250521 ↗
Enrolled (actual)
100
Serious AEs
0.0%
Results posted
Nov 2018
Primary outcomePrimary: Number of Participants Successfully Intubated on First Attempt With Use of Either a Direct or Indirect Laryngoscopic View — 72; 16 Participants
Summary
This study was designed to determine the first attempt success rate of tracheal intubation with the McGRATH™ MAC laryngoscope using direct visualization in patients with known difficult airways, as well as exploring the possibility of identifying a particular direct Cormack-Lehane (C-L) grade view where indirect (video) visualization can be most beneficial during laryngoscopy and intubation.
Outcome Measures
| Outcome | Result | p-value |
|---|---|---|
| PRIMARY Number of Participants Successfully Intubated on First Attempt With Use of Either a Direct or Indirect Laryngoscopic View |
72; 16 | — |
| SECONDARY Glottic View With Direct Laryngoscopy |
11; 18; 27; 21; 17 | — |
| SECONDARY Glottic View With Indirect Laryngoscopy |
51; 17; 16; 6; 4 | — |
| SECONDARY Time for Direct View Laryngoscopy During the First Attempt |
12.41 | — |
| SECONDARY Time for Indirect View Laryngoscopy During the First Attempt |
14.73 | — |
| SECONDARY Time for Intubation |
35.91 | — |
| SECONDARY Number of Intubation Attempts |
88; 5; 1 | — |
| SECONDARY Number of Participants Who Received External Laryngeal Manipulation During the First Attempt |
42 | — |
| SECONDARY Number of Participants on Whom Bougie (Introducer) Was Used to Facilitate Intubation on the First Attempt |
12 | — |
| SECONDARY Subjective Ease of Laryngoscopy |
22; 29; 23; 19; 1 | — |
| SECONDARY Subjective Ease of Intubation |
20; 39; 21; 13; 1 | — |
Eligibility Criteria
Inclusion Criteria
- BMI 40 cm for females and > 43 cm for males; Thyromental distance < 6 cm; Ratio of the patient's height to thyromental distance ≥ 23.5; Sternomental distance < 12 cm
Exclusion Criteria
- BMI ≥ 50 kg/m2
- emergency status
- cervical injury or pathology
- neck irradiation
- known difficult airway
- risk of gastric aspiration
- hemodynamic instability
- requiring rapid sequence intubation
Data sourced from ClinicalTrials.gov (NCT02250521). Outcome figures and adverse-event rates are extracted automatically from the registry's posted results and are provided for clinician reference, not as a substitute for the primary publication. Informational only — not medical advice.