Assessment of Facial Measurements, the Length of Mouth Corner-mandible Angle and Incisors-mandible Angle, for Determining the Proper Sizes of Oropharyngeal Airway

Yonsei University

Status: Completed

Conditions: General Anesthesia

Treatments: Device: the length between mouth corner-mandible angle; Device: the length between incisor and mandible angle

Study type: Interventional

Funder types: Other

Identifiers

NCT01945411

4-2013-0440

Details and patient eligibility

About

The purpose of this study is to assess the facial measurements for determining the proper sizes of oropharyngeal airway. Investigators hypothesized that the length between incisors and mandible angle is more appropriate to estimate the size of oropharyngeal airway compared with the length between mouth corner and mandible angle.

Enrollment: 113 patients

Sex: All

Ages: 20 to 80 years old

Volunteers: No Healthy Volunteers

Inclusion criteria

• adult patients undergoing surgery that requires general anesthesia

Exclusion criteria

• anticipated difficult intubation
• patients without teeth or with loose teeth
• cervical spine disease
• upper airway disease
• body mass index over 35 kg/m2
• pregnancy

Trial design

Primary purpose: Treatment

Allocation: Randomized

Interventional model: Crossover Assignment

Masking: None (Open label)

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113 participants in 2 patient groups

Experimental

Experimental group

Description:

the length between incisor and mandible angle

Treatment:

Device: the length between incisor and mandible angle

Active comparator

Active Comparator group

Description:

the length between mouth corner-mandible angle

Treatment:

Device: the length between mouth corner-mandible angle