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Evaluation of transmitted glow point at a priori chosen depth (1 cm below vocal cords) for lightwand intubation: a prospective observational study

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Affiliated Author(s)
박지훈홍지희이지원
Alternative Author(s)
Park, Ji HoonHong, Ji HeeLee, Ji Won
Journal Title
Journal of International Medical Research
ISSN
1473-2300
Issued Date
2020
Keyword
Intubationcricoid cartilagelightwandgeneral anaesthesiabronchoscopetransmitted glow
Abstract
Objective:
When performing lightwand intubation, an improper transmitted glow position before tube advancement can cause intubation failure or laryngeal injury. This study was performed to explore the transmitted glow point corresponding to a priori chosen depth for lightwand intubation.

Methods:
Before lightwand intubation, we marked the transmitted glow point from a bronchoscope on the neck when it reached 1 cm below the vocal cords. Lightwand intubation was then performed using this marking point. The distances from the mark to the upper border of the thyroid cartilage, upper border of the cricoid cartilage, and suprasternal notch were measured.

Results:
In total, 107 patients were enrolled. The success rate of lightwand intubation using the mark was 93.5% (95% confidence interval, 88.7%–99.2%) at the first attempt. The marking point was placed 12.0 mm (95% confidence interval, 10.6–13.4 mm) below the upper border of the cricoid cartilage.

Conclusion:
Anaesthesiologists should be aware of the appropriate point of the transmitted glow on the patient's neck when performing lightwand intubation. We suggest that this point is approximately 1 cm below the upper border of the cricoid cartilage.
Department
Dept. of Anesthesiology & Pain Medicine (마취통증의학)
Publisher
School of Medicine (의과대학)
Citation
Eunyoung Cho. (2020). Evaluation of transmitted glow point at a priori chosen depth (1 cm below vocal cords) for lightwand intubation: a prospective observational study. Journal of International Medical Research, 48(12), 300060520974249-. doi: 10.1177/0300060520974249
Type
Article
DOI
10.1177/0300060520974249
URI
http://kumel.medlib.dsmc.or.kr/handle/2015.oak/43462
Appears in Collections:
1. School of Medicine (의과대학) > Dept. of Anesthesiology & Pain Medicine (마취통증의학)
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