The Reliability and Validity of the Upper Lip Bite Test to Predict Difficult Laryngoscopy in Korean

Completed

• Conditions: Orotracheal Intubation

• Registration Number: NCT01908218
• Lead Sponsor: Yonsei University

Brief Summary

Anticipated difficulties at laryngoscopy give time to prepare alternative method and proper management.

Several methods to evaluate the anatomical structures has been used during preoperative period for airway assessment.

Evaluation methods are such as the Mallampati classification, mouth opening, thyromental distance and sternocostal distance.

the Upper Lip Bite test, evaluates the possibility of a patient cover the mucosa of the upper lip by the lower incisor.

The aim of this study was to assess the clinical usefulness of the Upper Lip Bite test(ULBT) in Korean compared to Modified Mallampati classification(MMT).

Detailed Description

Not available

Basic Information
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Recruitment & Eligibility
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Study & Design
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Trial Locations

Study Timeline

• Study Start: 2009-02
• Primary Completion: 2009-02
• Study Completion: 2009-02
• Status Verified: 2013-07
• Study First Submitted: 2013-07-17
• Study First Submitted QC: 2013-07-22
• Last Update Submitted: 2013-07-22
• Study First Posted: 2013-07-25
• Last Update Posted: 2013-07-25

Recruitment & Eligibility

• Status: COMPLETED
• Sex: All
• Target Recruitment: 344

Inclusion Criteria

• adult patients undergoing general anesthesia with orotracheal intubation

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Exclusion Criteria

• patient who have facial anomaly , 2. patients who required a rapid sequence induction

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Study & Design

• Study Type: OBSERVATIONAL
• Study Design: Not specified

Primary Outcome Measures

Name	Time	Method
Cormack and Lehane grade	glottis view with direct laryngoscopy for 1 minute during anesthesia induction	When the patients undergoing general anesthesia with orotracheal intubation, after obtained glottis view with direct laryngoscopy, the performer assessed Cormack and Lehane grade. (It takes about 1 minutes). A grade 1 and 2 were rated as an easy laryngoscopy. Difficult laryngoscopy was defined as the inability to visualize the vocal cords, each includes Grades 3 and 4.

Trial Locations

Locations (1)

Kwandong university colloge of medicine; 🇰🇷 Seoul, Korea, Republic of