Evaluation of Difficult Laryngoscopy With Ultrasonography in Pediatric Patients

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

121 participants

Study Classification

OBSERVATIONAL

Study Start Date

2023-05-10

Study Completion Date

2024-01-04

Brief Summary

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Pediatric patients pose challenges in airway management due to anatomical and physiological changes. Using recommended predictive tests for predicting difficult airway can be improved by combining them with ultrasound measurement of the anterior soft tissues of the neck. In this study, the investigators aim to evaluate the ultrasound measurement of anterior neck soft tissues in paediatric patients before anesthesia induction, to anticipate difficult laryngoscopy.

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Detailed Description

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Eligible participants for this study will be patients aged 2-8 years scheduled for elective surgery under general anesthesia who have provided informed consent. During the preoperative evaluation, demographic data and airway physical examination results (Mallampati score) of the patients will be recorded. Patients who have received preoperative sedation will be positioned supine on the operating table, and ultrasound-guided measurements of soft tissue distances will be taken using a linear probe with a frequency range of 6-13 Hz. The distance between the hyoid bone and skin (DSHB), distance between the vocal cord anterior commissure and skin (DSAC), and distance between the epiglottis and skin (DSE) will be measured. The A/E (Anterior Commissura/Epiglottis) ratio will be calculated after measurements.

After standard monitoring and anesthesia induction, difficult laryngoscopy will be evaluated using the Modified Cormack Lehane Score, which grades the visibility of vocal cords and glottic structures. A grade of 3 or 4 on this scale will be considered as difficult laryngoscopy and recorded as such. Tracheal intubation will be performed by an anesthesiologist with at least two years of experience who is unaware of the ultrasound measurements.

Conditions

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Intubation; Difficult or Failed Difficult Laryngoscopy

Study Design

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Observational Model Type

COHORT

Study Time Perspective

PROSPECTIVE

Study Groups

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2-8 Years Paediatric Patients

During the preoperative evaluation, demographic data and airway physical examination results (Mallampati score) of the patients will be recorded. Patients who have received preoperative sedation will be positioned supine on the operating table, and ultrasound-guided measurements of soft tissue distances will be taken using a linear probe with a frequency range of 6-13 Hz. The distance between the hyoid bone and skin (DSHB), distance between the vocal cord anterior commissure and skin (DSAC), and distance between the epiglottis and skin (DSE) will be measured. The A/E (Anterior Commissura/Epiglottis) ratio will be calculated after measurements.

After standard monitoring and anesthesia induction, difficult laryngoscopy will be evaluated using the Modified Cormack Lehane Score, which grades the visibility of vocal cords and glottic structures. A grade of 3 or 4 on this scale will be considered as difficult laryngoscopy and recorded as such.