Trial · NCT07902986
Sniffing Position vs Left Head Rotation (LeHeR) Maneuver for Glottic View During Direct Laryngoscopy
NCT07902986, Not yet recruiting, Sakarya University
3 sourcestrials-2026-11-12-0.5.0
Cite this record
ConductScience Library. Sniffing Position vs Left Head Rotation (LeHeR) Maneuver for Glottic View During Direct Laryngoscopy. Trials, record NCT07902986. Release trials-2026-11-12-0.5.0, 12 Nov 2026. https://conductscience.org/library/trials/NCT07902986
On this page
Trial
As registered on ClinicalTrials.gov, in the graph's capture of the registry.
- Title
- Sniffing Position vs Left Head Rotation (LeHeR) Maneuver for Glottic View During Direct Laryngoscopy
- NCT number
- NCT07902986
- Status
- Not yet recruiting
- Enrollment
- 150 participants, estimated
- Lead sponsor
- Sakarya University
- Conditions
- Difficult Intubation, Laryngoscopy, Airway Management
- Interventions
- Direct laryngoscopy in the sniffing position, Left Head Rotation (LeHeR) maneuver
- First posted
- 2026-10-29
- Last updated
- 2026-10-29
Source ClinicalTrials.gov
Registered outcomes11
Each outcome the trial registered, primary first, in ClinicalTrials.gov's words.
| List | Outcome | Time frame | Description |
|---|---|---|---|
| Primary | Modified Cormack-Lehane Grade in the Sniffing Position Versus the LeHeR Position | During direct laryngoscopy, approximately 3-10 minutes after induction of general anesthesia | Glottic view obtained during direct laryngoscopy with a Macintosh blade, graded using the modified Cormack-Lehane classification (1, 2A, 2B, 3A, 3B, 4; higher grades indicate a worse view). Each patient is assessed first in the sniffing position and then after 45° left head rotation (LeHeR), and the paired grades are compared within the same patient. |
| Primary | Percentage of Glottic Opening (POGO) Score in the Sniffing Position Versus the LeHeR Position | During direct laryngoscopy, approximately 3-10 minutes after induction of general anesthesia | Percentage (0-100%) of the glottic opening visible from the anterior commissure to the interarytenoid notch during direct laryngoscopy; higher values indicate a better view. Each patient is assessed first in the sniffing position and then after 45° left head rotation (LeHeR), and the paired scores are compared within the same patient. |
| Secondary | Intubation Difficulty Scale (IDS) Score | During endotracheal intubation, from first laryngoscopy until confirmed tracheal intubation | IDS score calculated as the sum of seven parameters (N1-N7): number of additional attempts, number of additional operators, number of alternative techniques, Cormack-Lehane grade minus 1 in the position in which intubation is achieved, increased lifting force (0/1), need for external laryngeal pressure (0/1), and vocal cord position (abducted 0 / adducted 1). Score 0 = easy intubation, 1-5 = slight difficulty, \>5 = moderate to major difficulty. |
| Secondary | Ease of Intubation | During endotracheal intubation, from first laryngoscopy until confirmed tracheal intubation | Ease of intubation categorized as: easy (successful at first attempt without additional maneuvers), moderate (successful at first attempt with additional maneuvers such as external laryngeal manipulation or stylet/bougie, or at second attempt), difficult (more than two attempts, a different operator or a different technique required, but ultimately successful), or impossible (fiberoptic/awake intubation required or failed intubation). |
| Secondary | Number of Participants Requiring Additional Airway Maneuvers | During endotracheal intubation, from first laryngoscopy until confirmed tracheal intubation | Number of participants requiring BURP (backward-upward-rightward pressure), external laryngeal manipulation, or return of the head to the sniffing position to achieve intubation after the LeHeR maneuver. |
| Secondary | Number of Participants Requiring a Bougie or Stylet | During endotracheal intubation, from first laryngoscopy until confirmed tracheal intubation | Number of participants in whom a gum elastic bougie or stylet is required to achieve endotracheal intubation. |
| Secondary | Intubation Time | During endotracheal intubation, from first laryngoscopy until confirmed tracheal intubation | Time in seconds from passage of the laryngoscope blade between the lips to the appearance of the first end-tidal carbon dioxide waveform on capnography. |
| Secondary | Number of Participants With Airway Trauma | From first laryngoscopy until 5 minutes after intubation | Number of participants with signs of airway trauma, defined as blood on the laryngoscope blade or endotracheal tube, or lip, dental or oropharyngeal mucosal injury. |
| Secondary | Heart Rate | Baseline (before induction), after induction, and at 1, 3, 5 and 10 minutes after intubation | Heart rate (beats/min) recorded at predefined time points to assess hemodynamic and oxygenation changes associated with laryngoscopy and intubation. |
| Secondary | Mean Arterial Pressure | Baseline (before induction), after induction, and at 1, 3, 5 and 10 minutes after intubation | Mean arterial pressure (mmHg) recorded at predefined time points to assess hemodynamic and oxygenation changes associated with laryngoscopy and intubation. |
1 to 10 of 11Source ClinicalTrials.gov
See all 11 registered outcomesOutcomes0
Each outcome the trial posted results for, in ClinicalTrials.gov's words.
None in this release.
Results by group0
Each measurement the trial posted, group by group, in the words and numbers it posted.
None in this release.
Participant flow0
How many started, completed or left each group, period by period.
None in this release.
Adverse events0
Each adverse event the trial posted, group by group: the participants affected out of those at risk.
None in this release.
Adverse event totals0
The totals the trial posted for each group.
None in this release.
Papers0
The papers the trial lists on ClinicalTrials.gov.
None in this release.
Grants0
The grants NIH RePORTER links to the trial, newest funded first: NIH's, and some of AHRQ's, CDC's, FDA's and VA's. Each shows its title, principal investigators, organization and funder in its newest year.
None in this release.
Trial comparisons0
Comparisons of the trial's two groups, calculated by ConductScience from the counts it posted.
None in this release.
Tests0
The ConductCognition tests this trial's registered outcomes name, as ScienceGraph matched them in trial-tests-2026-11-12-0.2.1.
None in this release.
Data dates
The day each source was copied for this release.
Sources 3
- ClinicalTrials.gov's posted results, through CTTI's AACTFreely available. Acknowledgement requested
- ClinicalTrials.govNo license stated
- NIH RePORTER's clinical studies and project filesPublic domain
Each source's terms
- ClinicalTrials.gov's posted results, through CTTI's AACTClinicalTrials.gov data via Aggregate Analysis of ClinicalTrials.gov (AACT), CTTI. CTTI makes its materials freely available and requests acknowledgement. https://aact.ctti-clinicaltrials.org/documentation/299
- ClinicalTrials.govnone stated
- NIH RePORTER's clinical studies and project filesPublic domain (NIH RePORTER)
ClinicalTrials.gov's data carry an international copyright outside the United States: https://clinicaltrials.gov/about-site/terms-conditions.
For software
Read this trial from software.
The record and each of its lists are JSON, twenty rows a page. No key.
GET https://conductscience.org/api/trials/v1/NCT07902986
GET https://conductscience.org/api/trials/v1/NCT07902986/registered