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

Orotracheal Intubation Clinical Trial

Clinical Trial Details — Status: Completed

Administrative data

• NCT number: NCT01908218
• Other study ID #: 4-2008-0583
• Status: Completed
• Phase: N/A
• First received: July 17, 2013
• Last updated: July 22, 2013
• Start date: February 2009
• Est. completion date: February 2009

Study information

• Verified date: July 2013
• Source: Yonsei University
• Contact: n/a
• Is FDA regulated: No
• Health authority: Korea: Institutional Review Board
• Study type: Observational

Clinical Trial 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).

Recruitment information / eligibility

• Status: Completed
• Enrollment: 344
• Est. completion date: February 2009
• Est. primary completion date: February 2009
• Accepts healthy volunteers: No
• Gender: Both
• Age group: 20 Years to 80 Years

Eligibility

Inclusion Criteria:

• adult patients undergoing general anesthesia with orotracheal intubation

Exclusion Criteria:

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

Study Design

Observational Model: Ecologic or Community, Time Perspective: Retrospective

Related Conditions & MeSH terms

• Orotracheal Intubation

Locations

Country	Name	City	State
Korea, Republic of	Kwandong university colloge of medicine	Seoul

Sponsors (1)

Lead Sponsor	Collaborator
Yonsei University

Country where clinical trial is conducted

Korea, Republic of, 

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	Cormack and Lehane grade	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.	glottis view with direct laryngoscopy for 1 minute during anesthesia induction	No