Usefulness of Light Wand-guided Insertion of Flexible Reinforced Laryngeal Mask Airway: Comparison With Conventional Blind-insertion
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 发起方
- 入组人数
- 54
- 试验地点
- 1
- 主要终点
- Oropharyngeal leak pressure
研究概览
简要总结
Flexible LMA (Laryngeal mask airway) is very useful for variable situation but it is hard to insert in correct position because of it's flexible structure. Especially in classical way of manual LMA insertion, when the index finger could not guide the flexible LMA to the optimal position, we could not guarantee the correct position of the LMA. Therefore several studies have been investigated to improve this.
The light wand is a kind of stylet which have a light on the tip. Recently some studies demonstrated the usefulness of the light wand which could be used for indicating correct position of the LMA. We hypothesised there will be two advantages if the light wand is used as a stylet of the flexible LMA. First the stylet could support the mildness of the flexible LMA, and second the lightness could confirm the correct position of the flexible LMA.
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Parallel
- 主要目的
- Other
- 盲法
- Double (Participant, Outcomes Assessor)
入排标准
- 年龄范围
- 19 Years 至 75 Years（Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •The patient need general anesthesia using LMA and belonged to the ASA(American society of Anesthesiologist) class I or II
排除标准
- •The patient who has URI(upper respiratory infection) symptom within 14 days or
- •The patient's BMI(body mass index) exceeds 35 kg/m2
- •The patient has severe GERD(gastroesophageal reflux disease) or hiatus hernia
- •The patient who has any contraindication for LMA insertion
研究组 & 干预措施
Control group
The flexible LMA is inserted using "index finger technique"
Light wand group
The flexible LMA is inserted using light wand as a stylet
干预措施: light wand (Device)
结局指标
主要结局
Oropharyngeal leak pressure
时间窗: 5 minutes after LMA is inserted
The oropharyngeal leak pressure is measured by the pressure which the investigator could detect the audible sound by stethoscope on patient's cheek during the exhaust valve is closed and the fresh gas is allowed to flow into the lungs at 3 liters per minute.
次要结局
- The grade of oropharyngeal view through the fiberoptic assessment(5 minutes after LMA is inserted)
研究者
Jiyoung Yoo
clinical assistant professor
Ajou University School of Medicine