Improvement of the Glottic View by the Use of Video Laryngoscope
试验速览
- 阶段
- 不适用
- 入组人数
- 39
- 试验地点
- 1
- 主要终点
- POGO (Percentage of Glottic Opening) score
研究概览
简要总结
This study aims to compare the exposure of glottis by the use of video and direct laryngoscopy.
详细描述
It is well known that a video laryngoscope can provide better glottic view than a direct laryngoscope. However, to date, a direct laryngoscope has been the standard equipment for tracheal intubation. Recently, it seems that use of the video laryngoscope has increased. However, the advantage of the video laryngoscope over a direct laryngoscope has not been measured quantitatively. In this study, the glottic view by the use of video laryngoscope will be compared with that of the direct laryngoscope simultaneously, by using C-MAC S-imager installed with a disposable Macintosh blade. Intubating anesthesiologists will use it as if it is a direct laryngoscope. Simultaneously, the glottic views visualized on the monitor of the video laryngoscope will be recorded and evaluated later. For quantitative comparison, the glottic view will be scored with the Percentage of glottic opening scale, for both direct laryngoscopy and video laryngoscopy. Also, the glottic view will be compared by Cormack-Lehane grade.
研究设计
- 研究类型
- Observational
- 观察模型
- Case Only
- 时间视角
- Prospective
入排标准
- 年龄范围
- 18 Years 至 —（Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •Patients who are over 18 years old, and are planning surgeries that require general anesthesia and tracheal intubation.
排除标准
- •Patients who are not agreed to participate in the trial
- •Patients who have a poor dental condition which requires other than direct laryngoscopy
- •Patients who require rapid sequence induction technique
- •Patients with cervical spine instability
结局指标
主要结局
POGO (Percentage of Glottic Opening) score
时间窗: during laryngoscopy
POGO (Percentage of Glottic Opening) score of the glottic view by video/direct laryngoscope during laryngoscopy without external laryngeal manipulation. (Percentage of glottic opening score, which means a better outcome at higher score: linear span from the anterior commissure to the interarytenoid notch; 0%, only interarytenoid notch seen; 100% full view of vocal cords)
Cormack-Lehane grade
时间窗: during laryngoscopy
Cormack-Lehane grade with video/direct laryngoscope, during laryngoscopy without external laryngeal manipulation (Cormack-Lehane grade, which means a better outcome at lower score: grade 1, Full view of glottis; grade 2a, Partial view of glottis; grade 2b, Only posterior extremity of glottis or arytenoid cartilages; grade 3, Only epiglottis seen; grade 4, Neither glottis nor epiglottis seen)
次要结局
- Cormack-Lehane grade with external laryngeal manipulation(during laryngoscopy)
- POGO score with external laryngeal manipulation(during laryngoscopy)
研究者
Dongwook Won
Associate professor
Seoul National University Hospital