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无论是原发性高血压还是继发性高血压,尽管引起血压升高的原因不同,但其血流动力学改变却会有某些相似之处,而同为原发性高血压的不同病期的血流动力学改变又可以有不同的形式。一、血压调节的基本原理和有关系统血压(BP)是由影响血流的因素决定的,与此有关的两个主要因素是代表全身血流量的心输出量(CO)和总外周阻力(TPR),其关系一般以公式BP=CO×TPR表示之。全身毛细血管前阻力性血管水平产生的血管阻力是TPR的主要因素,
Whether it is essential hypertension or secondary hypertension, despite the reasons for the rise in blood pressure is different, but there are some changes in hemodynamic changes have similarities, but with different diseases of essential hypertension The hemodynamic changes can have different forms. First, the basic principles of blood pressure regulation and related systems Blood pressure (BP) is determined by the factors that affect the blood flow, the two main factors associated with this are the systemic output of cardiac output (CO) and total peripheral resistance (TPR ), The relationship between the general formula BP = CO × TPR said. Vascular resistance resulting from systemic pre-capillary vascular resistance is a major contributor to TPR,