Comparison of Conventional Lightwand Intubation Versus Video-laryngoscope Guided Lightwand Intubation in Simulated Cervical Spine-immobilized Patients

Not Applicable

Completed

• Conditions: General Anesthesia
• Interventions: Device: lightwand alone; Device: Video-laryngoscope guided lightwand

• Registration Number: NCT03169556
• Lead Sponsor: Yonsei University

Brief Summary

Among advanced intubation equipment for difficult intubation, a lighted stylet (lightwand) is a widely used equipment in cervical immobilized patients. However, a lightwand, which is used blind, is difficult to make midline positioning and can increase airway complications and hemodynamic changes. In contrast, videolaryngoscope can view vocal cord indirectly through camera, however, it requires cervical movement. Therefore, investigator hypothesized that the combined use of video-laryngoscope and lightwand for intubation can improve the efficacy of intubation compared to the use of lightwand alone in cervical immobilized patients.

Detailed Description

Not available

Study Timeline

• Study Start: 2016-12-19
• Study First Submitted: 2017-05-17
• Study First Submitted QC: 2017-05-25
• Study First Posted: 2017-05-30
• Status Verified: 2017-10
• Primary Completion: 2017-10-13
• Study Completion: 2017-10-13
• Last Update Submitted: 2017-10-26
• Last Update Posted: 2017-10-30

Recruitment & Eligibility

• Status: COMPLETED
• Sex: All
• Target Recruitment: 318

Inclusion Criteria

1. Aged between 20- 80 yrs
2. Patients scheduled surgery under the general anesthesia

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Exclusion Criteria

1. Patient who has history of gastro-esophageal reflux disease, previous airway surgery, anatomical abnormality in the upper airway, or coagulopathy
2. Patients with body mass index >35kg/m2, hemodynamic instability or loosening teeth
3. Patient who disagrees to participate this study or lacks decision-making ability, illiteracy, or foreigner
4. American Society of Anesthesiologists physical status ≥ 3

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Study & Design

• Study Type: INTERVENTIONAL
• Study Design: PARALLEL

Arm && Interventions

Group	Intervention	Description
lightwand	lightwand alone	-
video-laryngoscope guided lightwand	Video-laryngoscope guided lightwand	-

Primary Outcome Measures

Name	Time	Method
The success rate of intubation	Within 90 sec after insertion of lightwand or video-laryngosocpe into oral cavity.	Confirm the success intubation through end-tidal carbon dioxide on a capnography
The duration of intubation	Within 90 sec after insertion of lightwand or video-laryngosocpe into oral cavity.	Define as the duration between insertion of lightwand or video-laryngoscope to oral cavity and removal all intubating devices from oral cavity.

Secondary Outcome Measures

Name	Time	Method
number of intubation trial and scooping movements	during intubation time, intubation attempts allows maximum 3 times, within 90 sec in each time	The number of intubation tiral and scooping movements during intubation
Blood pressure change	from start of intubation to 5minute after intubation	The difference between maximum mean blood pressure and minimum blood pressure
Postoperative sore throat	at 1hr after PACU arrival and 24hr after operation	Check using visual analog scale (0-100 points)
Postoperative hoarseness	at 1hr after PACU arrival and 24hr after operation	Check "Yes or No" through questioning the patient
Injuries of oral cavity	at immediate after intubation and extubation	Check any blood in lips, teeth, endotracheal cuff, and oral cavity
Heart rate change	from start of intubation to 5minute after intubation	The difference between maximum heart rate and minimum minimum heart rate

Trial Locations

Locations (1)

Department of Anesthesiology and Pain Medicine, Severance Hospital, Yonsei University College of Medicine; 🇰🇷 Seoul, Korea, Republic of