Sublingual Tonometry to Assess Tissue Perfusion in Patients With Chronic Obstructive Pulmonary Disease (COPD) (subton)
A New Method of Sublingual Tonometry to Assess Tissue Perfusion in Patients With COPD and Healthy Individuals
Sublingual positioning of a silicon capillary system is applied. After 15 min, while the individual is in resting position with closed mouth and normal tidal breathing through the nose is performed, the silicon capillary system is connected to a capnometer and CO2 tension is measured.
The investigators hypothesis is that this setup offers a non-invasive assessment of ventilatory efficiency with similar accuracy as arterial PCO2.
研究概览
详细说明
We have developed a new silicon capillary system for sublingual monitoring of CO2 tension in order to assess tissue perfusion. This set up is non-invasive, cheaper than previous tonometry devices and easier to apply in clinical routine. We have recruited patients with stable COPD and healthy individuals.
Sublingual tonometry results were evaluated after 15 min of tidal breathing with a capnometer for CO2 tension. Corresponding end tidal CO2 (PETCO2)and arterial blood gas values (pH, PaCO2, PaCO2) were also investigated.
研究类型
注册 (实际的)
阶段
- 不适用
联系人和位置
学习地点
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Deszk、匈牙利、6772
- Department of Pulmonology, Albert Szent-Györgyi Clinical Center, University of Szeged
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参与标准
资格标准
适合学习的年龄
- 孩子
- 成人
- 年长者
接受健康志愿者
有资格学习的性别
描述
Inclusion Criteria:
- COPD patients with stable disease
Exclusion Criteria:
- acute exacerbation of COPD
学习计划
研究是如何设计的？
设计细节
- 主要用途：诊断
- 分配：非随机化
- 介入模型：并行分配
- 屏蔽：无（打开标签）
武器和干预
参与者组/臂 |
干预/治疗 |
|---|---|
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实验性的：COPD patients and healthy individuals
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Stable patients with COPD and healthy individuals were asked to open their mouth and a small butterfly silicon capillary was placed sublingually.
After 15 minutes, while the mouth was closed completely and nose breathing was performed, the capillary system was connected to a capnometer and sublingual tonometric PCO2 was measured.
At the same time, PETCO2 was also measured and arterial blood was drawn for pH, PO2 and PCO2 analysis
其他名称：
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研究衡量的是什么？
主要结果指标
结果测量 |
大体时间 |
|---|---|
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sublingual tonometric PCO2 - arterial PCO2
大体时间：one year
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one year
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次要结果测量
结果测量 |
大体时间 |
|---|---|
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sublingual tonometric PCO2 - PETCO2
大体时间：one year
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one year
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合作者和调查者
调查人员
- 首席研究员：Attila Somfay, MD,PhD、Department of Pulmonology, University of Szeged, Hungary
出版物和有用的链接
研究记录日期
研究主要日期
学习开始
初级完成 (实际的)
研究完成 (实际的)
研究注册日期
首次提交
首先提交符合 QC 标准的
首次发布 (估计)
研究记录更新
最后更新发布 (估计)
上次提交的符合 QC 标准的更新
最后验证
更多信息
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