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Assessment Of Difficult Airway Predictors: A Prospective Comparison Of Upper Airway Ultrasound And Conventional Anthropometric Measures

NCT ID: NCT07309978

Last Updated: 2025-12-30

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

NOT_YET_RECRUITING

Total Enrollment

200 participants

Study Classification

OBSERVATIONAL

Study Start Date

2025-12-25

Study Completion Date

2027-12-25

Brief Summary

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This prospective observational study aims to evaluate whether upper airway ultrasound measurements can improve the prediction of difficult airway compared with conventional anthropometric assessments. Adult patients undergoing elective procedures requiring airway management will be included. Ultrasound parameters such as tongue thickness, anterior neck soft tissue thickness, and hyomental distance will be measured before airway intervention. Standard clinical predictors (Mallampati score, thyromental distance, neck circumference, etc.) will also be recorded. The primary objective is to determine the diagnostic accuracy of ultrasound-based measurements in predicting difficult laryngoscopy and intubation. The study seeks to provide evidence supporting the integration of upper airway ultrasound into routine pre-anesthetic airway evaluation.

Detailed Description

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Conditions

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Prediction of Difficult Airway Difficult Airway Intubation

Study Design

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Observational Model Type

COHORT

Study Time Perspective

PROSPECTIVE

Study Groups

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Single Cohort

This cohort includes all adult participants undergoing airway evaluation with upper airway ultrasound and standard anthropometric measurements. No interventions are applied; participants are observed prospectively to assess the predictive value of ultrasound parameters for difficult airway.

No interventions assigned to this group

Eligibility Criteria

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Inclusion Criteria

* Adults aged 18-99 years
* Patients scheduled for elective surgery under general anesthesia
* ASA Physical Status I-III
* Able to provide informed consent
* Undergoing preoperative airway evaluation

Exclusion Criteria

* \- Emergency surgery cases
* Age \<18 years
* ASA Physical Status IV-V
* Pregnant or breastfeeding patients
* Patients with limited cooperation or inability to provide consent
* Known anatomical airway anomalies or previous major neck surgery
Minimum Eligible Age

18 Years

Maximum Eligible Age

99 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Saglik Bilimleri Universitesi Gulhane Tip Fakultesi

OTHER

Sponsor Role lead

Responsible Party

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Sami Eksert

anesthesiology specialist

Responsibility Role PRINCIPAL_INVESTIGATOR

Locations

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Sağlık Bilimleri Üniversitesi

Ankara, , Turkey (Türkiye)

Site Status

Countries

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Turkey (Türkiye)

Facility Contacts

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sami eksert, MD, Assoc. Prof.

Role: primary

References

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Roth D, Pace NL, Lee A, Hovhannisyan K, Warenits AM, Arrich J, Herkner H. Airway physical examination tests for detection of difficult airway management in apparently normal adult patients. Cochrane Database Syst Rev. 2018 May 15;5(5):CD008874. doi: 10.1002/14651858.CD008874.pub2.

Reference Type BACKGROUND
PMID: 29761867 (View on PubMed)

Rastogi A, Singh AK, Srivastava D, Kannaujia AK, Singh TK, Mishra P. Evaluation of ultrasound measured tongue thickness, tongue thickness-thyromental distance ratio, and skin-to-epiglottis distance in predicting unanticipated difficult laryngoscopy. J Anaesthesiol Clin Pharmacol. 2025 Jan-Mar;41(1):151-157. doi: 10.4103/joacp.joacp_423_23. Epub 2025 Jan 23.

Reference Type BACKGROUND
PMID: 40026745 (View on PubMed)

Yao W, Wang B. Can tongue thickness measured by ultrasonography predict difficult tracheal intubation? Br J Anaesth. 2017 Apr 1;118(4):601-609. doi: 10.1093/bja/aex051.

Reference Type BACKGROUND
PMID: 28403413 (View on PubMed)

Other Identifiers

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AEŞH-EK-2-25-276

Identifier Type: -

Identifier Source: org_study_id