Examining the intubation complications of different glottal elevation techniques using the McGRATH MAC videolaryngoscope.: A multicentre randomized controlled trial

Examining the intubation complications of different glottal elevation techniques using the McGRATH MAC videolaryngoscope.: A multicentre randomized controlled trial - Examining the intubation complications of different glottal elevation techniques using the McGRATH MAC videolaryngoscope.: A multicentre randomized controlled trial

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

JPRN

Registry ID

JPRN-UMIN000055803

Enrollment

800

Registered

2024-10-10

Start date

2024-10-20

Completion date

Unknown

Last updated

2026-06-29

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

Conditions

Patients aged 18 years and over undergoing standby surgery under general anesthesia

Interventions

McGRATH MAC Videolaryngoscopic glottis elevation with direct elevation for tracheal intubation. McGRATH MAC Videolaryngoscopic glottis elevation with indirect elevation for tracheal intubation.

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: Patients who fulfill all of the following conditions are eligible. 1. patients scheduled for general anesthesia in standby surgery 2. patients with American Society Association physical status class I to III 3. patients who are at least 18 years of age at the time consent is obtained 4. patients with sufficient judgment to understand the study and whose written consent has been obtained.

Exclusion criteria

Exclusion criteria: 1. patients with a history of intubation difficulties 2. patients with cervical spondylosis 3. patients with gastro-oesophageal reflux disease 4. patients with epiglottis cysts 5. patients with a Body Mass Index (BMI) of more than 35 kg/m2

Design outcomes

Primary

Measure	Time frame
intubation complications	—

Countries

Japan

Contacts

Public ContactAki Hirai

Wakayama Medical University Department of Anesthesiology

akihri@wakayama-med.ac.jp073-441-0611

Outcome results

None listed

Source: JPRN (via WHO ICTRP) · Data processed: Jul 3, 2026