一个新的系统,可以在实时中持续估计日内分析血压
Daniela Viramontes-Hörner1,2, Paul Stewart3, Jill Stewart4
1Centre for Kidney Research and Innovation, Academic Unit for Translational Medical Sciences, School of Medicine, University of Nottingham, UK.
概括
一种新的非侵入性方法可以通过体外电路传感器在血液透析期间估计静脉血压 (SBP). 这种实时SBP估计器与传统袖口测量相比表现良好,有助于管理静脉透析性低血压.
科学领域:
- 腎臟病學 (nephrology) 是一種醫學專業.
- 生物医学工程 生物医学工程
- 心血管监测 心血管监测
背景情况:
- 透析内低血压 (IDH) 是血液透析期间经常发生的严重并发症.
- 患者的不良结果与IDH有关.
- 目前的透析期间血压监测方法可能很繁.
研究的目的:
- 开发和验证一种新的,非侵入性的持续缩血压 (SBP) 估计器.
- 为了评估这个估计器的性能与血液透析期间的标准手臂袖SBP测量.
主要方法:
- 一项观察性单中心研究,涉及21名血液透析参与者,他们患有动脉静脉.
- 连续SBP是实时估计使用压力波传感器在体外电路内.
- 估计器值是时间平均值,并与两次4小时的两次手臂袖SBP测量相比较.
主要成果:
- 在实时SBP估计和手臂袖SBP (r=0.825,p<0.001) 之间发现了显著的关联.
- 平均差异很小 (-1.9±16 mmHg),没有系统偏差.
- 66%的估计值在袖口值的10%以内,95%的估计值在30%以内.
结论:
- 开发的实时SBP估计器在跟踪日内分析SBP方面表现良好.
- 这种非侵入性方法利用现有的体外电路传感器,减少了患者的负担.
- 这种有前途的血液透析监测工具需要进一步开发和大规模测试.
相关概念视频
01:30Equipments Used To Measure Blood Pressure
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Direct Method
This invasive approach involves cannulating a peripheral artery. During each cardiac contraction, pressure generates mechanical motion within the catheter, transmitted through rigid, fluid-filled tubing to a transducer. This transducer converts mechanical motion into electrical signals displayed as waveforms on a monitor. An automatic flushing system prevents blood backflow. Due to the potential risk of unexpected arterial blood loss, this method is primarily used in intensive...
This invasive approach involves cannulating a peripheral artery. During each cardiac contraction, pressure generates mechanical motion within the catheter, transmitted through rigid, fluid-filled tubing to a transducer. This transducer converts mechanical motion into electrical signals displayed as waveforms on a monitor. An automatic flushing system prevents blood backflow. Due to the potential risk of unexpected arterial blood loss, this method is primarily used in intensive...
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01:10Pre-Procedural Guidelines for Assessing Blood Pressure
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Accurate blood pressure assessment is crucial for diagnosing and managing various health conditions. To ensure the reliability of these measurements, healthcare professionals must adhere to standardized pre-procedural guidelines. These guidelines enhance patient safety and improve the overall quality of healthcare. The following steps are essential for obtaining accurate and consistent blood pressure readings, from using the appropriate tools to ensuring effective communication with the...
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01:28Special considerations while measuring blood pressure
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When assessing blood pressure (BP), healthcare professionals must consider various factors and potential unexpected outcomes to ensure accurate readings and provide proper patient care. Adhering to these guidelines is essential to achieving the most reliable results.
Monitoring Both Arms:
Monitoring BP in both arms during the initial assessment is advisable, as the systolic value may differ by five to ten mm Hg between arms. For subsequent BP assessments, use the arm with the higher reading.
Monitoring Both Arms:
Monitoring BP in both arms during the initial assessment is advisable, as the systolic value may differ by five to ten mm Hg between arms. For subsequent BP assessments, use the arm with the higher reading.
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01:23Assessment of blood pressure in brachial artery(two-step method)
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01:15Assessment of blood pressure in brachial artery(one-step method)
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Prepare for the Procedure:
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01:19Assessing Blood pressure using a doppler ultrasound
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Pre-Procedural Guidelines for Doppler Ultrasound Blood Pressure Assessment:
Preparation of Equipment:
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