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Mean arterial pressure : ウィキペディア英語版
Mean arterial pressure
The mean arterial pressure (MAP) is a term used in medicine to describe an average blood pressure in an individual. It is defined as the average arterial pressure during a single cardiac cycle.
==Calculation==
Total Peripheral Resistance (TPR) is represented mathematically by the formula:
R = ΔP/Q〔Total peripheral resistance, Wikipedia
R is TPR.
ΔP is the change in pressure across the systemic circulation from its beginning to its end.
Q is the flow through the vasculature (equal to cardiac output)
In other words:
Total Peripheral Resistance = (Mean Arterial Pressure - Mean Venous Pressure) / Cardiac Output
Therefore, Mean arterial pressure can be determined from:〔(Cardiovascular Physiology Concepts: Mean Arterial Pressure, Richard E. Klabunde, Ph.D )〕
:MAP = (CO \cdot SVR) + CVP
where:
*CO is cardiac output
*SVR is systemic vascular resistance
*CVP is central venous pressure and usually small enough to be neglected in this formula.

抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
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