Comparison of Two Airway Devices in Paediatric Patients With Difficult Airway

NCT ID: NCT06767995

Last Updated: 2025-01-10

Basic Information

• Recruitment Status: COMPLETED
• Clinical Phase: NA
• Total Enrollment: 50 participants
• Study Classification: INTERVENTIONAL
• Study Start Date: 2021-03-01
• Study Completion Date: 2023-12-31

Brief Summary

The aim of current study was to compare Flexible fiberoptic bronchoscopy (FFB) and Glidescope devices in terms of intubation success and duration of intubation in patients under 12 months of age with PRS. In the present study, the investigators found similar initial intubation success rates with Glidescope and FFB. Although further studies are needed to determine the superiority of the two techniques, the investigators believes that advanced airway techniques should be prioritized and can be safely used by reducing the number of interventions.

Detailed Description

Flexible fiberoptic bronchoscopy (FFB) is considered the gold standard for airway management in both adult and pediatric patients with known or anticipated difficult airways. New generation videolaryngoscopy systems have also been successfully used as an alternative to FFB in pediatric patients with anticipated difficult airways. Airway management in patients with Pierre Robin Sequence (PRS) is challenging due to the classic triad of glossoptosis, micrognathia, and airway obstruction, along with potential accompanying syndromes and anomalies. It is clear that advanced airway techniques should be used in this patient group. However, there are not many studies in the literature demonstrating the success or superiority of these advanced airway techniques. The aim of current study was to compare FFB and Glidescope devices in terms of intubation success and duration of intubation in patients under 12 months of age with PRS. The current study is a prospective randomized controlled trial. Following ethical approval, between March 2021 and December 2023, intubation success and duration were compared between Flexible Intubation Video Endoscope (FIVE)® or GlideScope® Titanium devices in PRS patients under 12 months of age who underwent elective surgery under general anesthesia. Patients' anthropometric data such as age, weight, height, gender, preoperative airway examination measurements including mouth opening (MO), thyromental distance (TMD), frontal plane-chin distance (FPCD), and FPCD/weight index were recorded. Patients were randomized and intubated by two experienced faculty members using either FFB or Glidescope. Intubation success on the first attempt, intubation duration, glottic visualization time, and complications were recorded by a non-blinded research assistant. Both devices were compared for these parameters. The current study included 50 PRS patients, with 23 in the FFB group and 27 in the Glidescope group. There were no statistically significant differences between the two patient groups in terms of age, gender, anthropometric measurements, mouth opening, TMD, FPCD, and FPCD/weight index. There was no statistically significant difference in intubation success on the first attempt between the two groups (81.5% for Glidescope and 87% for FFB, p=0.430). The median intubation duration was statistically significantly shorter in the Glidescope group (35 seconds, IQR=10.5) compared to the FFB group (40 seconds, IQR=18) (p=0.032). Since the endotracheal tube passage times were similar in both groups, this difference was attributed to the time to achieve optimal glottic visualization. The median time to achieve optimal glottic visualization was 9.5 seconds (IQR=7.5) in the Glidescope group and 16 seconds (IQR=14) in the FFB group (p=0.002). However, the clinical significance of this difference cannot be conclusively determined. Moreover, complication rates during the procedure were similar between the two groups (18.5% for Glidescope and 13% for FFB, p=0.711). There is currently no validated test for predicting difficult preoperative airways in PRS patients. Literature reviews suggest that pediatric reference values for MO, TMD, and FPCD measurements are controversial, and more studies are needed to establish appropriate reference values. In the present study, the investigators found similar initial intubation success rates with Glidescope and FFB. Although further studies are needed to determine the superiority of the two techniques, the investigators believes that advanced airway techniques should be prioritized and can be safely used by reducing the number of interventions.

Conditions

Intubation; Difficult or Failed

Study Design

• Allocation Method: RANDOMIZED
• Intervention Model: CROSSOVER
• Primary Study Purpose: TREATMENT
• Blinding Strategy: SINGLE

Study Groups

Intubation with Flexible fiberoptic bronchoscopy

Patients were intubated with FFB and intubation success, intubation time, glottic visualization time and complications were recorded.

FFB is considered the gold standard for airway management in both adult and pediatric patients with known or anticipated difficult airways.

Group Type: ACTIVE_COMPARATOR

Flexible fiberoptic bronchoscopy

Intervention Type: DEVICE

If Flexible Intubation Video Endoscope® (FIVE) will be used, the appropriate endotracheal tube is loaded into the bronchoscope and made ready. The number of attempts and duration of successful intubation were recorded by a non-blinded research assistant. The stopwatch was started when the FFB started to pass through the patient's mouth/nose, and as soon as the ventilation of the lungs was confirmed by the end tidal carbon dioxide trace, the stopwatch was stopped and this time was recorded as the successful intubation time. The time between passing FFB through the mouth/nose and obtaining the best glottic view was recorded as the best glottic visualization time. The endotracheal tube passage time was defined as the intubation time minus the best glottic visualization time and recorded. Complications during the procedure were recorded.

Intubation with Glidescope

Patients were intubated with Glidescope and intubation success, intubation time, glottic visualization time and complications were recorded.

New generation videolaryngoscopy systems have also been successfully used as an alternative to FFB in pediatric patients with anticipated difficult airways. One of the most frequently used is Glidescope.

Group Type: ACTIVE_COMPARATOR

Glidescope

Intervention Type: DEVICE

If GlideScope® Titanium is to be used, a 50-60° angle is applied with the appropriate stylet, and the appropriate one from 3 pediatric blade sizes is selected according to the clinical experience of the relevant practitioner. The number of attempts and duration of successful intubation were recorded by a non-blinded research assistant. The stopwatch was started as soon as the videolaryngoscope started to pass through the patient's mouth, and the stopwatch was stopped as soon as the ventilation of the lungs was confirmed by the end tidal carbon dioxide trace, and this time was recorded as the successful intubation time. The time between passing the videolaryngoscope through the mouth/nose and obtaining the best glottic view was recorded as the best glottic visualization time. Endotracheal tube transit time was defined as intubation time minus best glottic visualization time and recorded. Complications during the procedure were recorded.

Interventions

Flexible fiberoptic bronchoscopy

If Flexible Intubation Video Endoscope® (FIVE) will be used, the appropriate endotracheal tube is loaded into the bronchoscope and made ready. The number of attempts and duration of successful intubation were recorded by a non-blinded research assistant. The stopwatch was started when the FFB started to pass through the patient's mouth/nose, and as soon as the ventilation of the lungs was confirmed by the end tidal carbon dioxide trace, the stopwatch was stopped and this time was recorded as the successful intubation time. The time between passing FFB through the mouth/nose and obtaining the best glottic view was recorded as the best glottic visualization time. The endotracheal tube passage time was defined as the intubation time minus the best glottic visualization time and recorded. Complications during the procedure were recorded.

Intervention Type: DEVICE

Glidescope

If GlideScope® Titanium is to be used, a 50-60° angle is applied with the appropriate stylet, and the appropriate one from 3 pediatric blade sizes is selected according to the clinical experience of the relevant practitioner. The number of attempts and duration of successful intubation were recorded by a non-blinded research assistant. The stopwatch was started as soon as the videolaryngoscope started to pass through the patient's mouth, and the stopwatch was stopped as soon as the ventilation of the lungs was confirmed by the end tidal carbon dioxide trace, and this time was recorded as the successful intubation time. The time between passing the videolaryngoscope through the mouth/nose and obtaining the best glottic view was recorded as the best glottic visualization time. Endotracheal tube transit time was defined as intubation time minus best glottic visualization time and recorded. Complications during the procedure were recorded.

Intervention Type: DEVICE

Other Intervention Names

Flexible Intubation Video Endoscope (FIVE)®; GlideScope® Titanium

Eligibility Criteria

Inclusion Criteria

• Being under 12 months,
• Being diagnosed with Pierre Robin Sequence,
• Being subjected to elective surgery,
• To be operated between 01 March 2021 and 31 December 2023.

Exclusion Criteria

• Patients requiring emergency surgery, patients requiring rapid serial intubation,
• Patients who have already been taken to the operating room by intubation or tracheostomy,
• Patients who will not be processed under general anesthesia,
• Patients who do not have family consent and informed consent cannot be obtained

• Minimum Eligible Age: 1 Day
• Maximum Eligible Age: 12 Months
• Eligible Sex: ALL
• Accepts Healthy Volunteers: No

Sponsors

Hacettepe University

OTHER

Sponsor Role: lead

Responsible Party

Begum Ercan

Medical Doctor, Specialist

Responsibility Role: PRINCIPAL_INVESTIGATOR

Locations

Hacettepe University Faculty of Medicine

Ankara, Sihhiye, Turkey (Türkiye)

Countries

Turkey (Türkiye)

Provided Documents

Document Type: Study Protocol, Statistical Analysis Plan, and Informed Consent Form

View Document

Other Identifiers

HacettepeÜ-AR-BE-01

Identifier Type: -

Identifier Source: org_study_id