袖口振荡度和侵入性血压之间的平均动脉压差异
Dean S Picone1,2, Martin G Schultz3, Matthew K Armstrong4
1School of Health Sciences, Faculty of Medicine and Health, University of Sydney, Sydney, NSW, Australia. Dean.Picone@sydney.edu.au.
概括
自动化血压 (BP) 设备可能会因为平均动脉压 (MAP) 测量的不准确性而导致静脉压和静脉压估计的错误. 了解这些差异对于准确的BP监测至关重要.
科学领域:
- 心血管生理学心血管生理学
- 医疗器械技术 医疗器械技术
- 临床测量 临床测量
背景情况:
- 自动袖子振荡计血压 (BP) 设备被广泛使用,但与侵入性测量的差异仍然存在.
- 从自动化设备中获得的平均动脉压 (MAP) 的准确性是潜在影响缩压 (SBP) 和腹缩压 (DBP) 血压估计的关键因素.
- 自动化MAP错误和随后的SBP/DBP估计错误之间的准确关系尚未完全阐明.
研究的目的:
- 为了确定自动化袖口振荡计平均动脉压 (MAP) 测量中的不准确性是否会导致自动化袖口静脉压 (SBP) 和静脉压 (DBP) 血压 (BP) 估计中的错误.
- 在多个自动化BP设备中量化MAP (袖口侵入性) 和SBP和DBP (袖口侵入性) 的差异之间的关联.
主要方法:
- 来自五项涉及262名接受冠状动脉血管造影的患者的研究数据的分析.
- 使用五种不同的自动化BP设备和通过导管侵入性MAP同时测量袖口振荡计MAP.
- 计算袖口振荡和侵入性MAP,SBP和DBP之间的差异 (∆),以评估设备的准确性.
主要成果:
- 在五种设备中的四种中,在∆MAP和∆SBP之间发现了显著的关联,∆MAP解释了∆SBP6-52%的变异.
- 在相同的四种设备中,在∆MAP和∆DBP之间也观察到显著的关联,∆MAP解释了∆DBP的35-52%的变异.
- 这些发现表明,自动化MAP测量的不准确与自动化SBP和DBP估计中的错误有关.
结论:
- 自动化袖口振荡计MAP和侵入性MAP之间的差异与自动化SBP和DBP的错误有关.
- 需要进一步的研究来提高自动袖口BP设备的准确性.
- 对于自动化BP设备中使用的算法,提高透明度是必要的,以便更好地了解测量差异.
相关概念视频
01:21Sites for measruring blood pressure
1.4K
Blood pressure measurement is a fundamental clinical procedure, providing crucial data for assessing cardiovascular health. Among the various sites for this measurement, the brachial and popliteal arteries are predominantly utilized due to their accessibility and the reliability of their readings. This lesson delves into the anatomical significance, methodology, and considerations of measuring blood pressure at these locations.
The Brachial Artery: Primary Site for Blood Pressure Measurement
The Brachial Artery: Primary Site for Blood Pressure Measurement
1.4K
01:30Equipments Used To Measure Blood Pressure
786
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...
786
01:17Measurement of Blood Pressure
800
Assessing blood pressure is a standard procedure executed in virtually all medical environments. The method utilized today was established over a hundred years ago by an innovative Russian doctor, Dr. Nikolai Korotkoff. The soft ticking noise, known as Korotkoff sounds, heard while taking blood pressure readings results from turbulent blood flow within the vessels. The apparatus required for this procedure includes a sphygmomanometer, a blood pressure cuff attached to a gauge, and a...
800
01:28Special considerations while measuring blood pressure
696
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.
696
01:23Assessment of blood pressure in brachial artery(two-step method)
644
Measuring blood pressure is a fundamental skill in healthcare that aids in diagnosing and monitoring hypertension and other cardiovascular conditions. An aneroid sphygmomanometer, commonly used in clinical settings, offers a manual and precise method for blood pressure measurement. The technique for using this instrument involves specific steps that must be carefully executed to ensure accuracy. The following detailed description outlines a two-step technique for assessing blood pressure using...
644
01:15Assessment of blood pressure in brachial artery(one-step method)
550
This procedural guide systematically measures blood pressure using an oscillometric digital sphygmomanometer, emphasizing accuracy, patient safety, and comfort.
Prepare for the Procedure:
Prepare for the Procedure:
550