Ultrasound Assessment of Changes in the Diameter of the Common Carotid Artery After Increasing the Preload of the Heart
2020年1月20日 更新者:Maciej Piwoda、Uniwersytecki Szpital Kliniczny w Opolu
Ultrasound Assessment of Changes in the Diameter of the Common Carotid Artery After Increasing the Preload of the Heart With Passive Leg Raise and Intravenous Fluid Infusion
Passive leg raise (PLR) and fluid challenge are useful tools in assessing the fluid responsiveness.
However, they require continuous monitoring of cardiac output, which is usually an invasive technique and in some cases not always available.
Vascular ultrasound can be an alternative to cardiac output monitoring in a fluid status evaluation.
The common carotid artery (CCA) is an easily accessible vessel.
It has recently been noted that the diameter of this artery changes after an intravenous fluid bolus.
It is possible that the change in the diameter of the common carotid artery during passive leg raise and fluid challenge can be a predictor of fluid responsiveness.
研究概览
研究类型
观察性的
联系人和位置
本节提供了进行研究的人员的详细联系信息,以及有关进行该研究的地点的信息。
学习地点
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Opolskie
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Opole、Opolskie、波兰、45-372
- Department of Anesthesiology and Intensive Care, Uniwersytecki Szpital Kliniczny w Opolu
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参与标准
研究人员寻找符合特定描述的人,称为资格标准。这些标准的一些例子是一个人的一般健康状况或先前的治疗。
资格标准
适合学习的年龄
18年 及以上 (成人、年长者)
接受健康志愿者
不
有资格学习的性别
全部
取样方法
概率样本
研究人群
Mechanically ventilated patients admitted to critical care unit.
描述
Inclusion Criteria:
- mechanically ventilated patients with circulatory failure, who are monitored with PiCCO and need fluid responsiveness assessment
Exclusion Criteria:
- contraindication for the volume administration (hydrostatic pulmonary edema or other evidence of fluid overload)
- contraindication for PLR test (e.g. after trauma)
- lack of possibility to examine the carotid arteries
- bilateral carotid surgery in the past
- bilateral anatomical defects of the carotid arteries
- unstable cardiac rhythm (e.g. atrial fibrillation)
学习计划
本节提供研究计划的详细信息,包括研究的设计方式和研究的衡量标准。
研究是如何设计的?
设计细节
队列和干预
团体/队列 |
干预/治疗 |
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Acute circulatory failure
Mechanically ventilated patients with acute circulatory failure, monitored with PiCCO method, who need fluid responsiveness assessment.
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During the procedure, the investigator will be imaging one of the carotid arteries with ultrasound.
In expiratory phase, four sets of three video loops will be recorded: before and after PLR and then before and after fluid challenge.
There also will be noted hemodynamic parameters measured with PiCCO monitor.
The fluid challenge is defined as administration of 500ml of crystalloid in less than 10 minutes.
Later, another investigator, who will be blinded to other data, will measure the maximal and minimal diameter of CCA in each loop.
The measurements will be averaged and eventually two values (maximal an minimal) from each set will be obtained.
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 |
措施说明 |
大体时间 |
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Changes in the diameter of the common carotid artery
大体时间:1 minute after PLR test and 1 minute after fluid challenge
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The diameter will be measured with ultrasound
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1 minute after PLR test and 1 minute after fluid challenge
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次要结果测量
结果测量 |
措施说明 |
大体时间 |
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Evaluation the value of changes in the diameter of CCA as the predictor of fluid responsiveness.
大体时间:1 minute after PLR test and 1 minute after fluid challenge
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The changes in the diameter of CCA will be compared with the changes in cardiac output measured with PiCCO method.
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1 minute after PLR test and 1 minute after fluid challenge
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合作者和调查者
在这里您可以找到参与这项研究的人员和组织。
研究记录日期
这些日期跟踪向 ClinicalTrials.gov 提交研究记录和摘要结果的进度。研究记录和报告的结果由国家医学图书馆 (NLM) 审查,以确保它们在发布到公共网站之前符合特定的质量控制标准。
研究主要日期
学习开始 (预期的)
2019年6月1日
初级完成 (预期的)
2020年10月1日
研究完成 (预期的)
2020年10月1日
研究注册日期
首次提交
2018年1月21日
首先提交符合 QC 标准的
2018年1月25日
首次发布 (实际的)
2018年1月26日
研究记录更新
最后更新发布 (实际的)
2020年1月23日
上次提交的符合 QC 标准的更新
2020年1月20日
最后验证
2020年1月1日
更多信息
此信息直接从 clinicaltrials.gov 网站检索,没有任何更改。如果您有任何更改、删除或更新研究详细信息的请求,请联系 register@clinicaltrials.gov. clinicaltrials.gov 上实施更改,我们的网站上也会自动更新.
fluid responsiveness assessment的临床试验
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University of California, San FranciscoNational Heart, Lung, and Blood Institute (NHLBI); National Institute of Nursing Research (NINR)完全的
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Fondazione IRCCS Ca' Granda, Ospedale Maggiore...Opera CRO, a TIGERMED Group Company完全的牙龈炎