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Optimal Intubating Technique Using Videolaryngoscopy in Patients With Semi-rigid Neck Collar

Comparison of Sliding Technique and Conventional Technique for Videolaryngoscopy in Patients Undergoing Cervical Spine Surgery With Semi-rigid Neck Collar During Intubation

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04578119
Enrollment
178
Registered
2020-10-08
Start date
2020-10-07
Completion date
2021-09-07
Last updated
2022-05-11

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Cervical Spine Surgery, Intubation;Difficult

Brief summary

In the case of tracheal intubation using a video laryngoscope, both techniques, one is 'conventional technique' in which intubation is performed by placing the blade tip on the vallecula and the other is 'sliding technique' performed by sliding the blade under the epiglottis, are commonly conducted by anesthesiologists. Investigators would like to compare if the sliding technique can improve the condition of tracheal intubation in patients wearing semi-rigid neck collars in cervical spine surgery.

Detailed description

For patients who need to limit the movement of the cervical spine, the tracheal intubation becomes difficult because the head must be positioned in the neutral position. Most of all, with a semi-rigid neck collar that maintains the neutral position of the head and neck, movement is limited and the mouth is not well-opened make the environment of tracheal intubation worse, which result in hypoxia or throat complications related to general anesthesia. Fortunately, it is possible that the development of video laryngoscope assists tracheal intubation easier for patients who have the limited movement of the cervical spine. However, the preferred intubation style and instrument selection for each operator are varied; the established method is required. In the case of tracheal intubation using a video laryngoscope, both techniques, one is 'conventional technique' in which intubation is performed by placing the blade tip on the vallecula and the other is 'sliding technique' performed by sliding the blade under the epiglottis, are commonly conducted by anesthesiologists. Investigators would like to compare if the sliding technique can improve the condition of tracheal intubation in patients wearing semi-rigid neck collars in cervical spine surgery.

Interventions

PROCEDURESliding Intubating Technique

Sliding technique' means that endotracheal intubation is performed by sliding the videolayngoscope blade under the epiglottis smoothly.

Sponsors

Gangnam Severance Hospital
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
OTHER
Masking
TRIPLE (Subject, Investigator, Outcomes Assessor)

Eligibility

Sex/Gender
ALL
Age
20 Years to No maximum
Healthy volunteers
Yes

Inclusion criteria

\- Adult patients (over 19 years of age) with ASA class I-III undergoing cervical spine surgery at our institution in the department of spine neurosurgery

Exclusion criteria

* When rapid sequence induction is required * When awake intubation is required * If a subject is on the medication for asthma * If as subject cannot read or understand the consent form of study

Design outcomes

Primary

MeasureTime frameDescription
percentage of glottic opening (POGO) score (%)When we insert the endotracheal tube during anesthetic inductionThe POGO score represents the percentage of glottic opening seen, defined by the linear span from the anterior commisure to the interarytenoid notch.

Countries

South Korea

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026