Cervical Spine Motion During Tracheal Intubation: Video Laryngoscope vs Rigid Video Stylet

Study Overview
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Brief Summary
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In this study, investigators are going to compare cervical spine motion during tracheal intubation using video laryngoscope or rigid video stylet in patients with simulated cervical immobilization.

Detailed Description
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In patients with an unstable cervical spine, neck extension during tracheal intubation may result in harmful events such as spinal cord injury. Thus, it is important to minimize cervical spine motion in these patients. In this randomized crossover study, investigators are going to compare cervical spine motion during tracheal intubation using video laryngoscope or rigid video stylet in patients with simulated cervical immobilization.

Official Title
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A Randomized Comparison of Cervical Spine Motion During Tracheal Intubation Using Video Laryngoscope or Rigid Video Stylet in Patients With Simulated Cervical Immobilization

Conditions
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Intubation

Intervention / Treatment
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* Device: rigid video stylet intubation
* Device: video laryngoscope intubation


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Patients aged 18-80 years undergoing elective endovascular cerebral aneurysm coiling to general anesthesia in a neuroangiography suite Exclusion Criteria: Patients with upper airway abnormalities such as inflammation, abscesses, tumors, polyps, and trauma Patients with a medical history of gastroesophageal reflux disease and previous airway surgery, at high risk for aspiration, coagulation disorders, or a Hunt Hess grade of 3-5

Ages Eligible for Study
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Minimum Age: 18 Years
Maximum Age: 80 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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No

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Other
Allocation: Randomized
Intervention Model: Crossover Assignment
Masking: Double


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Experimental: Group A<br>rigid video stylet intubation - video laryngoscope intubation | Device: rigid video stylet intubation<br>* intubation using rigid video stylet<br>Device: video laryngoscope intubation<br>* intubation using video laryngoscope<br>|
| Experimental: Group B<br>video laryngoscope intubation - rigid video stylet intubation | Device: rigid video stylet intubation<br>* intubation using rigid video stylet<br>Device: video laryngoscope intubation<br>* intubation using video laryngoscope<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| maximum cervical spine motion | maximum angles measured at the occiput-C1, C1-C2, C2-C5 segments | during tracheal intubation | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| intubation time | time interval between insertion of the device into the oral cavity and its removal | during tracheal intubation | 
| number of intubation trial | number of intubation trial | during tracheal intubation | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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cervical spine motion, video laryngoscope, rigid video stylet