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NCT Number: NCT04140981

Comparison of Ultrasonographic and Anthropometric Measurements in Difficult Airway Evaluation

In this study, anthropometric measurements (clinical measurements) will be applied in all patient groups; expected (to be difficult to provide airway patency as a result of detailed history, physical examination and evaluation tests performed by an experienced anesthesiologist), and unexpected (although it was not predicted that a difficulty was encountered). And ultrasounographic measurements will be applied in all patients. The aim of this study is to evaluate the predictive accuracy of ultrasonographic measurements.

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Key information

Conditions

Difficult Airway Intubation

Age range

18 year–75 year

Sex eligibility

All sexes

Study type

Observational

Primary location

Kırıkkale Univercity Faculty of Medicine Hospital

Kirikkale, 71450, Turkey (Türkiye)

About this study

In the preoperative period, the following clinical tests will be performed before the patient arrives in the operating room and when the patient arrives, the measurements will be made by ultrasonography.

  • Mallampati classification
  • Determination of mouth opening (interinsizer distance)
  • Thyromental distance
  • Sternomental distance

Preoperative evaluation of the patients and clinical results of the airway tests (mentioned above) will be recorded. The cervical soft tissue thickness will be measured and recorded at 3 levels (thyrohyoid membrane, vocal cord, hyoid bone) with the help of ultrasonography (mentioned above). In addition, since all patients will be under general anesthesia, laryngoscopic images (laryngoscopic evaluation according to Cormack Lehane classification) routinely recorded on the anesthesia follow-up sheet will be recorded.

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • patients under general anesthesia
  • ASA 1-2-3

Exclusion criteria

  • Patients who will undergo emergency surgery,
  • pregnant women,
  • children,
  • patients who may have difficulty in airway management due to cervical instability,
  • patients with trauma or malignancy in the neck region

Treatment and study plan

ultrasounography

Device

in preoperative period, airway ultrasounagraphy for all patients will be made

Primary outcomes

  1. Cormack Lehane classification

    Time frame: during the intubation period

    Laryngoscopic evaluation according to Cormack Lehane classification

Secondary outcomes

  1. ultrasonographic measurement

    Time frame: 15 min before the operation

    Preoperative ultrasonographic measurement will be made

Sponsors and collaborators

Lead sponsor

Kırıkkale University

Other

Registry information

Official study title

Evaluation of Ultrasounographic Measurements and Anthropometric Measurements as Predictors of Difficult Direct Laryngoscopy

Important dates

Study start
2019
Primary completion
2019
Study completion
2019
First posted
Oct 28, 2019
Registry last updated
Dec 20, 2019

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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