Possibility of cardiac output monitoring from the intra-arterial blood pressure profile.
Possibility of cardiac output monitoring from the intra-arterial blood pressure profile.
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通过动脉内血压曲线监测心输出量的可能性。
DOI：
10.3109/10641968509073555
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发表时间：
1985
期刊：
影响因子：
--
通讯作者：
G. Muiesan
中科院分区：
文献类型：
--
作者：
C. Alicandri;R. Fariello;E. Boni;A. Zaninelli;G. Muiesan
一种从动脉内血压曲线估计心输出量（CO）的方法（“等高线法”）在8例患者中进行了测试：6例原发性高血压，1例嗜铬细胞瘤和1例直立性低血压。CO（1/min）由以下公式得出：PSA（1+St/Dt）× HR 10（-3），其中PSA是压力曲线收缩部分下的面积，St是收缩时间，Dt是舒张时间，X是校正因子，HR是心率，10（-3）是从ml/min到1/min的转换因子。2种方法之间的相关性非常显著：所有患者在不同条件下（仰卧、倾斜、动态和静态运动）的r值范围为0.91至0.97，截距接近0，斜率接近1。这些结果表明，CO是正确的测量从动脉内血压曲线的“轮廓法”。连续的血流动力学监测可以通过将“轮廓法”应用于用牛津技术获得的动脉内血压曲线而得到。
A method for estimating cardiac output (CO) from the intra-arterial blood pressure profile ("contour method") was tested in 8 patients: 6 with essential hypertension, 1 with a pheochromocytoma and 1 with orthostatic hypotension. CO (1/min) was derived by the following formula: PSA (1+St/Dt) X HR 10(-3), where PSA is the area under the systolic portion of the pressure curve, St is the systolic and Dt the diastolic time, X is a correction factor, HR is the heart rate and 10(-3) is a conversion factor from ml/min to 1/min. The "contour method" was compared to the thermodilution CO method. The correlation between the 2 methods was highly significant: the r value in all patients during different conditions (supine, tilt, dynamic and static exercise) ranged from 0.91 to 0.97 with an intercept close to 0 and a slope close to 1. These results indicate that CO is properly measured from the intra-arterial blood pressure profile by the "contour method". A continuous hemodynamic monitoring can be derived applying the "contour method" to the intra-arterial blood pressure profile obtained with the Oxford technique.