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背景中心动脉压(CAP)是升主动脉根部的血压。研究结果表明 CAP 与心脑血管病终点事件密切相关,如何准确、方便的测量 CAP 是目前研究的热点。目的评价 CAP 无创性检测方法与有创导管测量的一致性和重复性。方法采用无创的桡动脉脉波检测装置和有创的动脉导管分别测量105例心血管病人和32例非心血管病人的 CAP。结果两组受试者导管法与无创方法测量的 CAP 的差值98%及97%落在95%的一致性区间内;两组测量 CAP 的组内相关系数(ICC)均为0.99,简单相关系数分别为0.98、0.99。两组受试者前后两次测量 CAP的差值绝大部分(98%、94%)在95%的一致性区间内;两组测量桡动脉增益指数(rAI)的 ICC 均为0.99,简单相关系数分别为0.97、0.99,两组受试者前后两次测量的 rAI 差值大部分(95%、97%)在95%的一致性区间内。结论无创性脉波检查装置测量 CAP 与导管法测量的一致性较好,测量 CAP 和 rAI 重复性也较好。
Background Artery pressure (CAP) is the blood pressure at the root of the ascending aorta. The results show that CAP is closely related to the end point of cardiovascular disease, how to accurately and conveniently measure CAP is the hotspot of current research. Objective To evaluate the consistency and repeatability of noninvasive detection of invasive catheter in patients with CAP. Methods Noninvasive radial artery pulse wave detection device and invasive ductus arteriosus were used to measure the CAP of 105 patients with cardiovascular disease and 32 patients with non-cardiovascular disease. Results The difference of CAP between the two groups was 98% and 97%, respectively. The difference between the two groups was 95%. The correlation coefficient (ICC) between the two groups was 0.99 and the correlation coefficient The coefficients are respectively 0.98 and 0.99. The difference between the two groups before and after the two measurements of CAP (98%, 94%) was in the 95% consistency range; the ICC of the radial artery gain index (rAI) were 0.99 The coefficients were 0.97 and 0.99, respectively. The majority of rAI differences (95%, 97%) measured twice before and after the two groups were within a 95% agreement range. Conclusions The noninvasive pulse wave examination device is better in measuring the consistency between CAP and catheter, and the repeatability of CAP and rAI is better.