DOPPLER PREDICTIONS OF PULMONARY-ARTERY PRESSURE, FLOW, AND RESISTANCE IN ADULTS
DOPPLER PREDICTIONS OF PULMONARY-ARTERY PRESSURE, FLOW, AND RESISTANCE IN ADULTS
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DOI：
10.1016/0002-8703(87)90658-2
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发表时间：
1987-06-01
影响因子：
4.8
通讯作者：
VOYLES, WF
中科院分区：
文献类型：
--
作者：
GRAETTINGER, WF;GREENE, ER;VOYLES, WF
我们通过多普勒超声心动图（DE）测量的主要肺动脉血流速度和直径来检测肺动脉压力(P)、血流(Q)和阻力(R)的无创预测的准确性。无创加速时间与射血时间（AN）之比与有创测定的平均肺动脉压（PI）和阻力（RI）相关。无创血流与热稀释血流（QI）相关。同时对9例成年患者（年龄22 ~ 73岁）进行有创和无创测量。结果：PI = 87 ~ 152an, r = 0.90, SEE = 7 mm Hg, p < 0.05；RI = 899-1722AN, r = 0.79, SEE = 121 dynes .cntdot。证交会.cntdot。Cm-5, p < 0.05；QI = -0.3 + 1.21QN, r = 0.95, SEE = 0.81。Min-1, p < 0.05。然后，我们前瞻性地使用这些方程来预测25例连续患者中的21例（技术上足够的83%）的PI、RI和QI。PI、RI和QI的变化范围为10 ~ 35mmhg， 39 ~ 456 dynes。证交会.cntdot。cm-5和3.51至8.39 L .cntdot。分别最低为1。结果：PI = 0.80P + 3, r = 0.72, SEE = 6 mm Hg, p < 0.05；RI = 0.75R-12, r = 0.64, SEE = 77。证交会.cntdot。Cm-5, p < 0.005；QI = 0.87Q + 0.38, r = 0.83, SEE = 0.86。Min-1, p < 0.05。这些结果表明，DE预测肺动脉压力、流量和阻力与随后插管时获得的值显著相关。
We examined the accuracy of noninvasive predictions of pulmonary artery pressure (P), flow (Q), and resistance (R) by means of main pulmonary artery blood velocities and diameters measured with Doppler echocardiography (DE). The ratio of noninvasive acceleration time to ejection time (AN) was correlated to invasively determined mean pulmonary artery pressure (PI) and resistance (RI). Noninvasive flows were correlated to thermodilution flows (QI). Simultaneous invasive and noninvasive measurements were made in nine adult patients (ages = 22 to 73 years). The results were: PI = 87-152AN, r = 0.90, SEE = 7 mm Hg, p < 0.05; RI = 899-1722AN, r = 0.79, SEE = 121 dynes .cntdot. sec .cntdot. cm-5, p < 0.05; and QI = -0.3 + 1.21QN, r = 0.95, SEE = 0.81 L .cntdot. min-1, p < 0.05. We then used these equations prospectively to predict PI, RI, and QI in 21 of 25 (83% technically adequate) consecutive patients. PI, RI, and QI ranged from 10 to 35 mm Hg, 39 to 456 dynes .cntdot. sec .cntdot. cm-5, and 3.51 to 8.39 L .cntdot. min-1, respectively. Results were: PI = 0.80P + 3, r = 0.72, SEE = 6 mm Hg, p < 0.05; RI = 0.75R-12, r = 0.64, SEE = 77 dynes .cntdot. sec .cntdot. cm-5, p < 0.005; and QI = 0.87Q + 0.38, r = 0.83, SEE = 0.86 L .cntdot. min-1, p < 0.05. These results suggest that DE predictions of pulmonary artery pressure, flow, and resistance correlate significantly with values subsequently obtained at catheterization.