Skip to content

Comparison of postoperative sore throat after videolaryngoscopic intubation: the conventional method versus withdraw-and-lift method

Comparison of postoperative sore throat after McGrath videolaryngoscopic intubation in expected difficult airway patients: the conventional method with a stylet versus withdraw-and-lift method without a stylet

Status
Recruiting
Phases
Unknown
Study type
Interventional
Source
CRIS
Registry ID
KCT0002427
Enrollment
104
Registered
2017-08-25
Start date
2017-10-01
Completion date
Unknown
Last updated
2019-03-11

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

Conditions

None listed

Interventions

Procedure/Surgery : During video-laryngoscopic intubation, the withdraw-and-lift method involves withdrawing the tip of the video laryngoscope blade 1-2 cm from the vallecular fossa and then lifting t

Sponsors

Seoul National University Hospital
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: Patients who receive lumbar or thoracic spine surgery under general anesthesia with ASA (American Society of Anesthesiologists) physical class I-III, aged 20-80 years. Patients with modified Mallampati class III or higher in pre-anesthesia airway evaluation.

Exclusion criteria

Exclusion criteria: Patients who do not agree with the study Patients with a history of gastroesophageal reflux Patients who has not fasted Patients with congenital or acquired upper respiratory lesions (Ex. tumor, polyp, trauma, abscess, inflammation, foreign body, etc.) Patients with a history of airway-related surgery, radiation therapy Patients with increased risk of airway aspiration or coagulopathy patients who have severely weak teeth

Design outcomes

Primary

MeasureTime frame
The incidence and the severity (numerical rating scale) of sore throat

Secondary

MeasureTime frame
Subglottic airway injury index (grade I-IV);The incidence of hoarseness;The number of trial and duration of intubation;Vocal cord exposure (Cormack-Lehane grade) at optimal view and intubation time;blood in oral cavity and endotracheal tube

Countries

Korea, Republic of

Contacts

Public ContactHyung-Chul Lee

Seoul National University Hospital

lucid80@gmail.com+82-2-2072-3108

Outcome results

None listed

Source: CRIS (via WHO ICTRP) · Data processed: Mar 2, 2026