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Book

Physiology, Systemic Vascular Resistance

Jacob E. Trammel  1 , Amit Sapra  1
In: StatPearls [Internet]. Treasure Island (FL): StatPearls Publishing; 2025 Jan.
.
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Book

Physiology, Systemic Vascular Resistance

Jacob E. Trammel et al.
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Excerpt

Systemic vascular resistance (SVR), also known as total peripheral resistance (TPR), is the amount of force exerted on circulating blood by the vasculature of the body. Three factors determine the force: the length of the blood vessels in the body, the diameter of the vessels, and the viscosity of the blood within them. Total peripheral resistance is an important concept to understand because it plays a vital role in the establishment and manipulation of blood pressure. This relationship is expressed mathematically as MAP = CO x TPR, where CO stands for cardiac output, and MAP stands for mean arterial pressure.

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Conflict of interest statement

Disclosure: Jacob Trammel declares no relevant financial relationships with ineligible companies.

Disclosure: Amit Sapra declares no relevant financial relationships with ineligible companies.

References

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