# Combined Ultrasound and Upper Lip Bite Test Assessment of Difficult Laryngoscopy in Obese Patients

> **NCT07642206** · NA · NOT_YET_RECRUITING · sponsor: **Cairo University** · enrollment: 134 (estimated)

## Conditions studied

- Airway Assessment

## Interventions

- **DIAGNOSTIC_TEST:** Hyomental distance measured using ultrasound in neutral head position, maximum head extension and during upper lip bite test

## Key facts

- **NCT ID:** NCT07642206
- **Lead sponsor:** Cairo University
- **Sponsor class:** OTHER
- **Phase:** NA
- **Study type:** INTERVENTIONAL
- **Status:** NOT_YET_RECRUITING
- **Start date:** 2026-07-01
- **Primary completion:** 2027-02-01
- **Final completion:** 2027-03-01
- **Target enrollment:** 134 (ESTIMATED)
- **Last updated:** 2026-06-12


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT07642206

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT07642206, "Combined Ultrasound and Upper Lip Bite Test Assessment of Difficult Laryngoscopy in Obese Patients". Retrieved via MORVS 2026-10-20 from https://api.morvs.ai/clinical/NCT07642206. Licensed CC0.

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