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剖腹产麻醉技术对母胎最大的潜在危险与血流动力学有关,因母体外周阻力及动脉压的变化,不反映母体心排血量(CO)的变化,而 CO 变化对胎儿有极大危险性。用超声多普勒测量升主动脉速率,结合超声心动图(UCG)侧量主动脉孔面积计算
Caesarean section anesthesia has the greatest potential risk on the mother’s womb with hemodynamics. Changes in maternal peripheral resistance and arterial pressure do not reflect changes in maternal cardiac output (CO), and CO changes are extremely dangerous to the fetus. Ascending aortic velocity was measured by Doppler echocardiography and calculated by the area of the aortic orifice in echocardiography (UCG)