Determination of the Optimal Size of Oropharyngeal Airway; Correlation With External Body Measurements
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 入组人数
- 149
- 试验地点
- 2
- 主要终点
- Optimal size of OPA
研究概览
简要总结
There are several studies that have measured various oropharyngeal airway space distances using radiological method. However, direct confirmation of optimal size of oropharyneal airways (OPAs) in individual using fiberoptic bronchoscope (FOB) is lacking as now. The purposes of this study were to directly determinate the proper size of OPA in individual by FOB via different sizes of OPA in adults under general anestheisia. Additionally, we examine the relationships among the size of OPA, straight length from the incisors to the tip of the epiglottis by laryngoscopy, patient height, and external facial measurements.
研究设计
- 研究类型
- Interventional
- 分配方式
- Na
- 干预模型
- Single Group
- 主要目的
- Prevention
- 盲法
- Single (Outcomes Assessor)
入排标准
- 年龄范围
- 20 Years 至 70 Years（Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •ASA class I-II
- •20-70 years adults
排除标准
- •an abnormal airway anatomy in preoperative radiologic study.
- •cervical spine pathology,
- •a history of difficult intubation,
- •neurologic disease or cardiovascular disease,
- •obesity (body mass index ≥ 30 kg m-1),
- •dental problem
结局指标
主要结局
Optimal size of OPA
时间窗: 1 min after each FOB measurement
Primary Outcome - 기술(Description) The distance from the distal end of OPA to the tip of the epiglottis was calculated by the difference between measured distance from the incisors to the tip of the epiglottis via each OPA by FOB and typical distance from the flange to distal end of each OPA via inside tube of OPA. When the size of OPAs was longer than distance from the incisors to the tip of the epiglottis, OPAs were partly withdrawn and repositioned the distal end of OPAs is placed just above the tip of epiglottis. Then, the length from the incisors to the flange of OPAs was measured. The optimal size of OPAs in individuals was defined that the distal end of OPA is placed the tip of epiglottis as close as possible without impingement on the epiglottis when the flange of OPA contact with the four central incisors.
次要结局
未报告次要终点