Modified Thyromental DistanceNCT07606079
Comparison of Different Scales for The Prediction of Difficult Airway
An observational study of Modified Thyromental Distance, run by Prof. Dr. Cemil Tascıoglu Education and Research Hospital Organization at 1 site in Turkey (Türkiye).
Trial summary
Although many tests exist for predicting a difficult airway, the search for a test with substantially higher specificity and sensitivity is still ongoing. The aim of this study is to evaluate the specificity and sensitivity of modified thyromental distance and modified sternomental distance measurements, scaled… Read more about this study
- Who is it for?
- Ages 18 years and older
- Conditions the study is for
- Modified Thyromental Distance
- How many people
- 850 participants
- Where
- 1 siteTurkey (Türkiye)
- Study dates
- 1 Jan 2026to 30 Jun 2026
- Phase
- Observational
- Are there results?
- Not yet: the study is under way
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 18 years and older
- All sexes
- No healthy volunteers
- Adult, Older adult
Study population: Patients aged 18 years and older.
Who may be able to join
- Patients aged 18 years and older who agreed to participate in the study
Who cannot join
- Patients who refused to participate in the study
- Patients with limited neck mobility
- Patients whose mouth opening is smaller than the width of their own three fingers
Trial locations and contacts
1 site in 1 country. Contact the study team or a site near you to ask about taking part.
Turkey (Türkiye)1 site, 1 recruiting
- Recruiting
Prof. Dr. Cemil Tascioglu City Hospital
Istanbul, 34384
Burak Çağrı Çevik, +905302651095, burakcagricevik@gmail.com
Serap Karacalar, Professor Doctor
About this study
Although many tests exist for predicting a difficult airway, the search for a test with substantially higher specificity and sensitivity is still ongoing. The aim of this study is to evaluate the specificity and sensitivity of modified thyromental distance and modified sternomental distance measurements, scaled according to the patient's own three-finger breadth, in predicting difficult laryngoscopy and difficult tracheal intubation.
- Conditions
- Modified Thyromental Distance
- Keywords
- Difficult airway, Modified thyromental distance
What is being measured
The primary outcome is the main question the study is designed to answer.
Sensitivity and specificity of patient-specific modified thyromental distance for predicting difficult intubation
Measured: During the 6-month study period, for each patient, the Cormack-Lehane score will be recorded when direct laryngoscopy is performed after induction of anesthesia in the perioperative period.
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted26 May 2026
- Study start1 Jan 2026
- Primary completion30 Jun 2026 (estimated)
- Study completion30 Jun 2026 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Modified Thyromental DistanceStudies of the same condition, open and under way.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Observational
- Observational model
- Cohort
- Time perspective
- Prospective
- Enrolment
- 850 participants (estimated)
Sponsor and investigators
- Lead sponsor
- Prof. Dr. Cemil Tascıoglu Education and Research Hospital Organization
- Sponsor type
- University, hospital or other
- Responsible party
- Principal investigator, SERAP KARACALAR, Prof. Dr. Cemil Tascıoglu Education and Research Hospital Organization
- Investigators
- Serap Karacalar, Professor Doctor, Principal investigator, SBU Prof. Dr. Cemil Tascioglu City Hospital
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT07606079
- Sponsor's protocol ID
- SBU-AVR-SK-01
- Status last verified
- May 2026
- First submitted
- 13 May 2026
- Last updated
- 26 May 2026
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- No
Study at a glance
From the registry record, last updated by the sponsor on 26 May 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Comparison of Different Scales for The Prediction of Difficult Airway
- ClinicalTrials.gov ID
- NCT07606079
- Acronym / sponsor ID
- SBU-AVR-SK-01
- Conditions
- Modified Thyromental Distance
- Keywords
- Difficult airway, Modified thyromental distance
- Study type
- Observational
- Recruitment status
- Recruiting
- Enrolment
- 850 participants (estimated)
- Lead sponsor
- Prof. Dr. Cemil Tascıoglu Education and Research Hospital OrganizationUniversity, hospital or other
- Study start
- 1 Jan 2026 (actual)
- Primary completion
- 30 Jun 2026 (estimated)
- Study completion
- 30 Jun 2026 (estimated)
- First posted
- 26 May 2026 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
Although many tests exist for predicting a difficult airway, the search for a test with substantially higher specificity and sensitivity is still ongoing. The aim of this study is to evaluate the specificity and sensitivity of modified thyromental distance and modified sternomental distance measurements, scaled according to the patient's own three-finger breadth, in predicting difficult laryngoscopy and difficult tracheal intubation.
Study design
- Observational model
- Cohort
- Time perspective
- Prospective
Who may qualify
- Ages
- 18 years and older
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
- Study population
- Patients aged 18 years and older.
Key inclusion criteria (1 listed)
- Patients aged 18 years and older who agreed to participate in the study
Key exclusion criteria (3 listed)
- Patients who refused to participate in the study
- Patients with limited neck mobility
- Patients whose mouth opening is smaller than the width of their own three fingers
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Primary outcome
Sensitivity and specificity of patient-specific modified thyromental distance for predicting difficult intubation
Time frame: During the 6-month study period, for each patient, the Cormack-Lehane score will be recorded when direct laryngoscopy is performed after induction of anesthesia in the perioperative period.
Results and safety
This study is still under way. Results are not available in the source record yet.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 26 May 2026.
- Individual participant dataSharing planned: No
Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part.
Serap Karacalar, Professor Doctor principal investigator
SBU Prof. Dr. Cemil Tascioglu City Hospital
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
An observational study of Modified Thyromental Distance, run by Prof. Dr. Cemil Tascıoglu Education and Research Hospital Organization at 1 site in Turkey (Türkiye).
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 1 inclusion and 3 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: looking for participants now, as of the sponsor's last update on 26 May 2026. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in Turkey (Türkiye). Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
This study is still under way. Results are not available in the source record yet.
How can a doctor refer a patient or contact the research team?
Contact Burak Ç Çevik, Resident Doctor (+905302651095, burakcagricevik@gmail.com), or a site near the patient. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Sensitivity and specificity of patient-specific modified thyromental distance for predicting difficult intubation (time frame: During the 6-month study period, for each patient, the Cormack-Lehane score will be recorded when direct laryngoscopy is performed after induction of anesthesia in the perioperative period.). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 26 May 2026.