The physiology of blood pressure:How do we evaluate “afterload”? Kei OTA 1 , Takeshi NOMURA 1 1Department of Intensive Care Medicine Tokyo Women's Medical University pp.95-101
Published Date 2020/1/1
DOI https://doi.org/10.11477/mf.3102200713
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The concept of “afterload” is evaluated from two viewpoints:stress to ventricular systolic stroke work and resistance to blood flow into the aorta. To evaluate heart disease, left ventricle myocardial wall stress is evaluated, and valvular disease or heart failure is treated. In patients in septic shock with an intact normal heart structure, the evaluation of resistance to blood flow into the aorta is useful for determining medical treatment strategies. Understanding the aortic input impedance including peripheral vascular resistance provides various information from examination of the arterial waveform. This section outlines cardiac afterload and aortic input impedance and discusses optimal afterload.

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