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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).
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| ULBT group | 344 adult patients undergoing general anesthesia with orotracheal intubation |
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| Measure | Description | Time Frame |
|---|---|---|
| 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 |
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Inclusion Criteria:
Exclusion Criteria:
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adult patients undergoing general anesthesia with orotracheal intubation
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| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Kwandong university colloge of medicine | Seoul | Seoul | South Korea |
| PubMed Identifier | Type | Citation | Retractions |
|---|---|---|---|
| 30630419 | Derived | Kim JC, Ki Y, Kim J, Ahn SW. Ethnic considerations in the upper lip bite test: the reliability and validity of the upper lip bite test in predicting difficult laryngoscopy in Koreans. BMC Anesthesiol. 2019 Jan 10;19(1):9. doi: 10.1186/s12871-018-0675-5. |
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