Ultrasound in Evaluation of Difficult Airway Management Predictive Indexes

Status

Completed

Phases

Unknown

Study type

Observational

Source

ClinicalTrials.gov

Registry ID

NCT03592758

Enrollment

200

Registered

2018-07-19

Start date

2017-06-01

Completion date

2018-06-14

Last updated

2018-07-19

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Airway Complication of Anesthesia

Brief summary

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

Detailed description

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

Interventions

None listed

Study design

Observational model

COHORT

Time perspective

PROSPECTIVE

Eligibility

Sex/Gender

ALL

Age

18 Years to No maximum

Healthy volunteers

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.

Design outcomes

Primary

Measure	Time frame	Description
ultrasound assessment	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.

Countries

Italy

Outcome results