Rigid Video Stylet Vs Conventional Lightwand Intubation

Study Overview
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Brief Summary
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Lightwand is a useful alternative device for intubation but scooping movement can induce damage and microbleeding of oral mucosa, postoperative hoarseness,sore throat. Optiscope is rigid video stylet which has camera on distal tip of device. In many previous studies, rigid video stylet has proven advantages compared with other intubating devices.

Official Title
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: Rigid Video Stylet Can Provide More Successful Intubation Than Conventional Lightwand Intubation in Patients With Cervical Spine Operation : A Prospective Randomized Study

Conditions
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Hoarseness, Intubation, Sorethroat

Intervention / Treatment
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* Device: Conventional lightwand intubation
* Device: Rigid video stylet


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Patients scheduled for cervical spine surgery under general anesthesia aged between 20- 80 yrs Exclusion Criteria: Patient who disagrees to participate this study Patient who has history of gastro-esophageal reflux disease, previous airway surgery, an increased risk of aspiration, coagulation disorders Patient who has congenital or acquired abnormalities of the upper airway, tumours, polyps, trauma, abscesses, inflammation or foreign bodies in the upper airway

Ages Eligible for Study
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Minimum Age: 20 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: Treatment
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Single


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Active Comparator: Lightwand<br>Conventional lightwand intubation will performe for intubation | Device: Conventional lightwand intubation<br>* Conventional lightwand intubation technique will perform during intubation<br>|
| Experimental: Optiscope<br>Rigid video stylet, manufactural named Optiscope, will perform for intubation | Device: Rigid video stylet<br>* Rigid video stylet will inserted through endotracheal tube before induction. After induction with propofol and remifentanil using TIVA infusion pump, rocuronium 0.6mg/kg were used to facilitate intubation. After 2minutes, board-certificated anesthesiologist perform intubation using Optiscope.<br>* Other names: Optiscope® (Pacific Medical, Seoul, Republic of Korea);|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Primary success rate of intubation | compare primary success rate of intubation using Optiscope with lightwand intubation | within 90 sec from insertion of device | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Intubation time | Check the intubation time (sec) Intubation time defines from insertion of device to oral cavity of patients to confirm successful intubation | within 90 seconds from insertion of device | 
| postoperative complications | check the postoperative hoarseness, sorethroat and using numeric rating scale (0-10 point) we checked sorethroat score | During PACU stay time expected up to 1hr | 
| postoperative complications | check the postoperative hoarseness, sorethroat and using numeric rating scale (0-10 point) we checked sorethroat score | 24 hr after operation | 
| hemodynamic change | check the changes of mean blood pressure, heart rate, pulse oximetry before and after intubation | baseline and 1minute after intubation | 
| number of intubation trial and scooping movements | Check the number of intubation tiral and scooping movements during intubation | during intubation time, an expected average of 1minute |