Appropriate Laryngeal Mask Airway Size in Patients With Overweight: A Comparison of the Actual Body Weight and Ideal Body Weight
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 入组人数
- 100
- 试验地点
- 1
- 主要终点
- Oropharyngeal leak pressure
研究概览
简要总结
The classic laryngeal mask airway is one of the keystones of modern anaesthetic practice. It achieves a reliable airway with a low incidence of major complications and pharynges-laryngeal morbidity. The manufactures of laryngeal mask airway recommend the proper size selection by actual body weight. It was recommended a size 3 for 30-70kg, a size 4 for 70-90 kg, and size 5 for > 90 kg. Obesity increases the fat tissue around an upper airway and decreases the pharyngeal cross sectional area. Also it was reported that pharyngeal area was reduced according to the increasing of BMI. Therefore, the aim of this study is to determine which of actual body weight or ideal body weight is proper on the size selection of laryngeal mask airway.
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Parallel
- 主要目的
- Prevention
- 盲法
- None
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
- •age 20~70
- •body mass index > 25 kg/m2
- •patient who needs surgery with laryngeal mask airway
排除标准
- •difficult airway
- •upper airway infection or disease of airway
- •history of gastroesophageal reflux
- •history of head and neck surgery
研究组 & 干预措施
ideal body weight
LMA size based on ideal body weight
干预措施: ideal body weight based size (Device)
actual body weight
LMA size according to actual body weight
干预措施: actual body weight based size (Device)
结局指标
主要结局
Oropharyngeal leak pressure
时间窗: 10mins
Oropharyngeal leak pressure is measured when the airway pressure becomes the plateau state in condition of gas flow 3 L/min and flow out valve 30 cmH2O.
次要结局
未报告次要终点