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OpenTrials
Completed

NCT Number: NCT03592758

Ultrasound in Evaluation of Difficult Airway Management Predictive Indexes

evaluate the efficacy of the ultrasound approach in predicting difficult mask ventilation in a heterogeneous population of patients undergoing general anesthesia.

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Key information

Conditions

Airway Complication of Anesthesia

Age range

18 year and older

Sex eligibility

All sexes

Study type

Observational

Primary location

Policlinico Umberto I - UNiversità Sapienzadi Roma

Roma, 00100, Italy

About this study

Preoperative ultrasound of the upper airway and detection of 5 ultrasound measurements:

Trachea-skin distance at the level of the thyroid isthmus; Trachea-skin distance at the jugular level Front commissure-skin distance; Distance from skin to the thyroid membrane Distance between hyoid bone and skin. Comparison of this measurement with HAN-scale for prediction of difficult mask ventilation during general anesthesia

Who can participate

Healthy volunteers accepted: No

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

Inclusion criteria

  • all patient > 18years old undergoing general anesthesia for elective surgery

Exclusion criteria

  • Patients with fractures of the bones of the facial mass;
  • Patients with laryngeal tumors
  • Patients previously undergoing demolition of the larynx or neck;
  • Tracheostomized patients;
  • Pregnancy;
  • Inter-incisive distance <3 cm;
  • severely limited cervical mobility;
  • Patients who are not given muscle relaxants
  • Patient rejection.

Treatment and study plan

Primary outcomes

  1. ultrasound assessment

    Time frame: Ultrasound assessment will be performed 30 minutes before induction of general anaesthesia and the mask ventilation evaluation will be performed 3 minutes after induction with ''Han scale".

    the association between the ultrasound measurement and the difficulty of mask ventilation measured with the "Han scale". "Han scale" classify mask-ventilation in five grade of progressive difficulty: 0) mask ventilation did not attempt, 1) easy 2) difficult and requiring oral airway 3) very difficult requiring two practitioners 4) unable to mask ventilate.

    "Han scale" is the only grading scale available used routinely in anesthesiologic assessment of bag-mask ventilation.

Sponsors and collaborators

Lead sponsor

University of Roma La Sapienza

Other

Registry information

Important dates

Study start
2017
Primary completion
2018
Study completion
2018
First posted
Jul 19, 2018
Registry last updated
Jul 19, 2018

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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