Noninvasive Measurement of Cardiac Output in Pulmonary Hypertension Using Inert Gas Rebreathing
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 发起方
- 入组人数
- 34
- 试验地点
- 1
- 主要终点
- Cardiac output
研究概览
简要总结
The study hypothesis is that accuracy of CO measurement by IGR does not differ from classical CO measurement methods such as thermodilution or direct Fick method. This is why the study aims to determine whether non invasive cardiac output (CO) measurement using inert gas rebreathing (IGR)is a suitable method in patients with pulmonary hypertension. In order to examine this, the IGR method will be used in patients undergoing diagnostic or follow-up right heart catheterization.
详细描述
Inert Gas Rebreathing method enables non invasive measurement of cardiac output (CO) using the single rebreathing method. A mixture of blood soluble (N2O) and blood insoluble gas (SF6) and environmental air is inhaled and the amount of N2O, SF6, O2 and CO2 is measured by a photoacoustic analysator. The length of a measurement is about 1 minute.
As the gold standard measurement of CO is performed invasively, there is an urgent need for the development of non-invasive tools like IGR.
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
- 18 Years 至 —（Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •Written informed consent
- •Patients who undergo right heart catheterization
排除标准
- •Missing written informed consent
结局指标
主要结局
Cardiac output
时间窗: at baseline
次要结局
未报告次要终点