Force and Pressure Distribution Using Macintosh and GlideScope Laryngoscopes in Normal Airway: an in Vivo Study
研究概览
详细说明
Forces applied on soft upper tissues by different laryngoscope blades during direct laryngoscopy and intubation are considered to be major stimuli to cause serious damages to the patients, such as local injures to incisors, larynx and spinal column, or hemodynamic changes in heart rate and/or blood pressure due to autonomic nervous system stimulation.
In order to reduce risk of such injures, indirect videolaryngoscopy provides the advantage of an easier laryngeal visualization with less need for the mouth-pharyngeal-laryngeal axes alignment, thereby reducing the detrimental effects above mentioned.
The aim of this study is to measure the minimal force exertion to achieve not only glottis view but also a successful intubation, comparing GlideScope and Macintosh laryngoscope, in patients with normal airway conditions. Furthermore, The investigators measured the following parameters: pressure distribution upon the blade; time required to visualize the glottis; time required to complete oro-tracheal intubation.
研究类型
注册 (实际的)
阶段
- 不适用
联系人和位置
学习地点
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Rome、意大利、00128
- University Hospital Campus BioMedico
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参与标准
资格标准
适合学习的年龄
接受健康志愿者
有资格学习的性别
描述
Inclusion Criteria:
- Patients classified as American Society of Anesthesiologists physical status (ASA-PS) class 1 or 2
- Patients whose intubation was associated with a Cormack-Lehane grade 1
Exclusion Criteria:
- younger than 18 yrs
- older than 65 yrs
- body-mass index (BMI) between 18 and 30
- predicted difficult intubation according to SIAARTI (Italian Society Anaesthesia, Analgesia, Resuscitation and Intensive Care)
学习计划
研究是如何设计的？
设计细节
- 主要用途：预防
- 分配：随机化
- 介入模型：并行分配
- 屏蔽：单身的
武器和干预
参与者组/臂 |
干预/治疗 |
|---|---|
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有源比较器：Direct laryngoscope
Includes cases in which the forces applied by Macintosh direct laryngoscope onto soft tissue of the pharynx during glottis visualization and intubation were measured.
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Force and pressure distribution applied by direct or indirect laryngoscope during glottis visualization and intubation were measured using film pressure transducers.
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有源比较器：Indirect laryngoscope
Includes cases in which the forces applied by GlideScope indirect laryngoscope onto soft tissue of the pharynx during glottis visualization and intubation were measured.
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Force and pressure distribution applied by direct or indirect laryngoscope during glottis visualization and intubation were measured using film pressure transducers.
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研究衡量的是什么？
主要结果指标
结果测量 |
措施说明 |
大体时间 |
|---|---|---|
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Force Applied and Pressure Distribution Upon the Blade of Laryngoscopes During Tracheal Intubation.
大体时间：Force measurement is referred to an average of 45 seconds in patients scheduled to undergo elective surgery under general anaesthesia
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The pressure distribution exerted upon the tissues by the blade was measured (in Newton)through pressure film transducers put on the blade of both direct and indirect laryngoscopes, in order to compare the two devices.
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Force measurement is referred to an average of 45 seconds in patients scheduled to undergo elective surgery under general anaesthesia
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次要结果测量
结果测量 |
措施说明 |
大体时间 |
|---|---|---|
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Time Required to Visualize the Glottis and Complete Oro-tracheal Intubation
大体时间：On average 20 seconds
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Since the time needed for laryngoscopy and intubation could represent one of the major contributors to the stress response during these procedures, times to achieve the glottis visualization and to perform the entire intubation were recorded.
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On average 20 seconds
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合作者和调查者
调查人员
- 首席研究员：Massimiliano Carassiti, Professor、Campus Biomedico
出版物和有用的链接
研究记录日期
研究主要日期
学习开始
初级完成 (实际的)
研究完成 (实际的)
研究注册日期
首次提交
首先提交符合 QC 标准的
首次发布 (估计)
研究记录更新
最后更新发布 (实际的)
上次提交的符合 QC 标准的更新
最后验证
更多信息
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