Voice Tessitura and Size of the Required Laryngeal Mask
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 入组人数
- 161
- 试验地点
- 1
- 主要终点
- Concordance between the weight and the tessitura threshold
研究概览
简要总结
The choice of the size of the laryngeal mask (i-gel) is based on the weight. Even following the weight recommendations, it is quite common to choose a mask that is too big or too small, which leads to ventilation leaks (too small), or insertion failures (too big) and leads to a change of mask for bigger or smaller.
The i-gel are laryngeal masks (2nd generation) which consist of gel and have been designed by molding on larynx corpses. The masks are not inflatable (so not adaptable).
I-gel masks are used in adult and pediatric patients for weights ranging from 2 Kg to over 90 Kg to provide ventilation during general anesthesia.
Patients with a deep voice probably need a larger laryngeal mask than their weight alone suggests.
The investigators propose to measure the lowest sound emitted by the patient because it would seem logical that the larger the larynx is, the more the voice is serious.
This hypothesis will be verified a posteriori by the size of the laryngeal mask used and adapted by comparing it to the range of the voice.
研究设计
- 研究类型
- Observational
- 观察模型
- Cohort
- 时间视角
- Prospective
入排标准
- 年龄范围
- 10 Years 至 —（Child, Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •Age ≥ 10 years
- •Planned surgical procedure with the use of a laryngeal mask
排除标准
- •Refusal to participate in the study.
结局指标
主要结局
Concordance between the weight and the tessitura threshold
时间窗: 1 day
Concordance between the size of the mask proposed as a function of the weight and that determined after determination of the tessitura threshold for each mask size by ROC curves.
次要结局
- Determining the tessitura threshold corresponding to each mask size(1 day)