Physiology, Peripheral Vascular Resistance
Claire Delong, Sandeep Sharma
2021StatPearls29 citations
Abstract
Peripheral vascular resistance (systemic vascular resistance, SVR) is the resistance in the circulatory system that is used to create blood pressure, the flow of blood and is also a component of cardiac function. When blood vessels constrict (vasoconstriction) this leads to an increase in SVR. When blood vessels dilate (vasodilation), this leads to a decrease in SVR. If referring to resistance within the pulmonary vasculature, this is called pulmonary vascular resistance (PVR).
Topics & Concepts
Vascular resistanceVasoconstrictionVasodilationCirculatory systemPeripheralMedicinePeripheral resistanceCardiologyBlood pressureBlood flowBlood vesselInternal medicineCardiac outputBlood Pressure and Hypertension StudiesRenal function and acid-base balanceHeart Rate Variability and Autonomic Control