使用颈总动脉血管内血压估计临界关闭压。
Estimation of critical closing pressure using intravascular blood pressure of the common carotid artery.
机构信息
Department of Rehabilitation Medicine, the Second Affiliated Hospital of Guangzhou Medical University, Guangzhou, China.
Department of Cardiology, the Second Affiliated Hospital of Guangzhou Medical University, Guangzhou, China.
出版信息
Med Eng Phys. 2022 Apr;102:103759. doi: 10.1016/j.medengphy.2022.103759. Epub 2022 Jan 15.
PURPOSE
Radial artery, femoral artery, and aortic arterial blood pressures (ABPs) can be used to estimate cerebral critical closing pressure (CrCP) and resistance-area product (RAP). However, the use of the common carotid artery (CCA) intravascular blood pressure to estimate CrCP is unclear. Thus, using continuous ABP monitoring, we compared the CrCP and RAP estimated from CCA measurements with the corresponding values acquired from the radial artery.
METHODS
In this retrospective cross-sectional study, we analyzed CrCP and RAP estimations from 21 patients with normal cerebral blood vessels between July 23, 2010, and February 9, 2011, using linear regression of the cerebral blood flow velocity-ABP relationship.
RESULTS
Bland-Altman analysis showed that the average differences (95% limits of agreement) between the radial artery and the left CCA were -6.3 (-53.1 - 40.6) mmHg and -0.08 (-0.41 - 0.25) mmHg s cm for CrCP and RAP, respectively.
CONCLUSIONS
The CrCP and RAP estimated from the CCA measurements are consistent with the corresponding values obtained from the radial artery.
目的
桡动脉、股动脉和主动脉动脉血压（ABP）可用于估计脑临界关闭压（CrCP）和阻力-面积乘积（RAP）。然而，使用颈总动脉（CCA）血管内血压来估计 CrCP 的方法尚不清楚。因此，我们使用连续 ABP 监测，比较了从 CCA 测量中估计的 CrCP 和 RAP 与从桡动脉获得的相应值。
方法
在这项回顾性的横断面研究中，我们使用大脑血流速度-ABP 关系的线性回归，分析了 2010 年 7 月 23 日至 2011 年 2 月 9 日期间 21 例正常脑血管患者的 CrCP 和 RAP 估计值。
结果
Bland-Altman 分析显示，桡动脉与左 CCA 之间 CrCP 和 RAP 的平均差异（95%一致性界限）分别为-6.3（-53.1 至 40.6）mmHg 和-0.08（-0.41 至 0.25）mmHg·s·cm。
结论
从 CCA 测量中估计的 CrCP 和 RAP 与从桡动脉获得的相应值一致。
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