# Effect of Back up Head Elevated Position on Laryngeal Visualization.

> **NCT04716218** · NA · COMPLETED · sponsor: **Hallym University Kangnam Sacred Heart Hospital** · enrollment: 64 (actual)

## Conditions studied

- Intubation;Difficult

## Interventions

- **PROCEDURE:** back up head elevated position

## Key facts

- **NCT ID:** NCT04716218
- **Lead sponsor:** Hallym University Kangnam Sacred Heart Hospital
- **Sponsor class:** OTHER
- **Phase:** NA
- **Study type:** INTERVENTIONAL
- **Status:** COMPLETED
- **Start date:** 2021-01-18
- **Primary completion:** 2021-03-31
- **Final completion:** 2021-03-31
- **Target enrollment:** 64 (ACTUAL)
- **Last updated:** 2026-01-29


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT04716218

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT04716218, "Effect of Back up Head Elevated Position on Laryngeal Visualization.". Retrieved via AI Analytics 2026-05-24 from https://api.ai-analytics.org/clinical/NCT04716218. Licensed CC0.

---

*[Clinical trials dataset](/datasets/clinical-trials) · CC0 1.0*