NCT01402752撤回不适用
System for Measuring Non-invasive Blood Flow in the Tracheobronchial Mucosa: Validation of Reproducibility
Centre Hospitalier Universitaire de Nīmes0 个研究点开始时间: 2013年11月1日最近更新:
适应症
干预措施
试验速览
- 阶段
- 不适用
- 状态
- 撤回
- 发起方
- 主要终点
- The reproducibility of two measures of Qaw at a five minute interval
研究概览
简要总结
The primary objective of this study is to evaluate the reproducibility of a method of measuring blood flow rates to the tracheo-bronchial mucosa using diluted dimethyl ether as a tracer.
研究设计
- 研究类型
- Interventional
- 分配方式
- Na
- 干预模型
- Single Group
- 主要目的
- Diagnostic
- 盲法
- None
入排标准
- 年龄范围
- 18 Years 至 —（Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 是
入选标准
- •The patient must have given his/her informed and signed consent
- •The patient must be insured or beneficiary of a health insurance plan
排除标准
- •The patient is under judicial protection, under tutorship or curatorship
- •The patient refuses to sign the consent
- •It is impossible to correctly inform the patient
- •Patient is pregnant
- •Patient is breast feeding
- •The patient is a smoker
- •The patient has, or has a history of, chronic respiratory insufficiency
- •The patient has a contra-indication for a treatment necessary in this study
研究组 & 干预措施
All patients
Experimental
All patients included in this study according to stated inclusion and exclusion criteria.
干预措施: Blood flow to the tracheo-bronchial mucosa (Biological)
结局指标
主要结局
The reproducibility of two measures of Qaw at a five minute interval
时间窗: Five minutes
Qaw is the blood flow measured in the tracheobronchial mucosa. Qaw = VDME/(FDME\*alpha\*10s) where VDME is the volume of dimethyl-ether exhaled (ml), FDME is the mean concentration of dimethyl-ether (%), alpha is the Bunsen coefficient for the dissolution of dimethyl ether in tissues and blood at 37°C (i.e. 9ml/ml).
次要结局
- The time necessary to complete one measure of Qaw (minutes)(Day 1)
研究者
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