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Glottis Visualization in Different Lifting Methods

Comparison of Epiglottis Lifting Methods Using a McGrath Video Laryngoscope: Direct vs. Indirect

Status
Completed
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT05967338
Enrollment
1
Registered
2023-08-01
Start date
2022-07-01
Completion date
2023-03-01
Last updated
2023-08-01

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Glottis Visualization, Intubation

Keywords

Endotrakeal intubation, Epiglottis, Glottis, McGrath MAC video laryngoscope

Brief summary

Among the various types of video laryngoscopes, the McGrath MAC video laryngoscopy (VL) has become popular because it is lightweight and can be quickly and hygienically prepared by changing the blade. The aim of this study was to compare the efficacy of two different methods (direct and indirect) for epiglottis removal during visualization of the glottis using the McGrath MAC VL.

Interventions

DEVICEusing McGrath Video Laryngoscope

glottis visualization in indirect and direct lifting methods by using McGrath Video Laryngoscope

Sponsors

Zonguldak Bulent Ecevit University
Lead SponsorOTHER

Study design

Observational model
COHORT
Time perspective
PROSPECTIVE

Eligibility

Sex/Gender
ALL
Age
18 Years to 65 Years
Healthy volunteers
Yes

Inclusion criteria

* ASA I-II * general anesthesia in elective surgeries * 18-65 years old * body mass index (25-30) * no risk of difficult intubation

Exclusion criteria

* Allergic to study drugs * pregnant women * emergency cases * those with a history of difficult intubation * those without consent * those at risk of aspiration

Design outcomes

Primary

MeasureTime frameDescription
POGO scores1 day (through intubation )percentage of glottic opening

Secondary

MeasureTime frameDescription
Cormack-Lehane classification1 day (through intubation )assessment of laryngeal view during laryngoscopy

Countries

Turkey (Türkiye)

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026