Indirect Laryngoscopy and Ultrasonography in Prediction of Difficult Airway

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

COMPLETED

Total Enrollment

140 participants

Study Classification

OBSERVATIONAL

Study Start Date

2019-06-15

Study Completion Date

2019-12-15

Brief Summary

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This study was designed to assess the success of indirect laryngoscopy and ultrasonographic measurements in the prediction of difficult airway. All patients were examined by indirect laryngoscopy and ultrasonography preoperatively and the predictive values for difficult airway of these methods were compared.

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Detailed Description

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Difficult airway is a condition that increases the patient's vital risk and leaves the anesthesia and surgical team in a difficult position. Failure to perform an adequate preoperative evaluation may result in the team being unprepared. Therefore, various methods have been investigated in the prediction of difficult airway from past to present. With the development of technology, imaging methods have become routine applications in clinical use. Ultrasonography and indirect laryngoscopy have been shown to be used in predicting difficult airway in the literature, but there is no study showing which is a better predictor.

Conditions

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Difficult Intubation

Study Design

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Observational Model Type

COHORT

Study Time Perspective

CROSS_SECTIONAL

Study Groups

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Study group

Patients over the age of 18 who underwent surgery in the ear, nose and throat department.

Ultrasonographic upper airway measurements

Intervention Type DIAGNOSTIC_TEST

Ultrasonographic upper airway measurements: Epiglottis-skin distance, Hyoid bone-skin distance, Anterior commissure-skin distance and Thickness of tounge root.

Indirect Laryngoscopy: Grading of laryngoscopic view (I=Visible anterior commissure and vocal cords, II= visible posterior part of vocal cords and posterior commissure, III= Visible posterior commissure and epiglottis, IV= Visible only epiglottis tip and posterior pharyngeal wall)

Interventions

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Ultrasonographic upper airway measurements

Ultrasonographic upper airway measurements: Epiglottis-skin distance, Hyoid bone-skin distance, Anterior commissure-skin distance and Thickness of tounge root.

Indirect Laryngoscopy: Grading of laryngoscopic view (I=Visible anterior commissure and vocal cords, II= visible posterior part of vocal cords and posterior commissure, III= Visible posterior commissure and epiglottis, IV= Visible only epiglottis tip and posterior pharyngeal wall)

Intervention Type DIAGNOSTIC_TEST

Other Intervention Names

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Indirect Laryngoscopy

Eligibility Criteria

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Inclusion Criteria

* Subject is operated in ear, nose and throat department.
* Subject over the age of 18.
* Subject giving consent to participate in the study.

Exclusion Criteria

* Subject under the age of 18
* Subject with a history of radiotherapy in the head and neck region,
* Subject with facial deformity,
* Subject whose neck movements have been restricted by previous trauma or surgery,
* Subject has laryngeal disease
* Previously operated subject with known airway assessment
* Morbidly obese subject with BMI\> 40

Minimum Eligible Age

18 Years

Maximum Eligible Age

70 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes