# Accuracy of Upper Lip Bite Test and Measurement of Skin-to-epiglottis Distance in Predicting Difficult Laryngoscopy: a Prospective Observational Study

> **NCT05881694** · — · UNKNOWN · sponsor: **Cairo University** · enrollment: 210 (estimated)

## Conditions studied

- Difficult Laryngoscopy
- Upper Lip Bite Test

## Interventions

_None listed._

## Key facts

- **NCT ID:** NCT05881694
- **Lead sponsor:** Cairo University
- **Sponsor class:** OTHER
- **Phase:** —
- **Study type:** OBSERVATIONAL
- **Status:** UNKNOWN
- **Start date:** 2023-05-30
- **Primary completion:** 2023-10-01
- **Final completion:** 2023-10-05
- **Target enrollment:** 210 (ESTIMATED)
- **Last updated:** 2023-06-06


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT05881694

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT05881694, "Accuracy of Upper Lip Bite Test and Measurement of Skin-to-epiglottis Distance in Predicting Difficult Laryngoscopy: a Prospective Observational Study". Retrieved via AI Analytics 2026-06-05 from https://api.ai-analytics.org/clinical/NCT05881694. Licensed CC0.

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