Relationship between venous return and right-atrial pressure.
The dynamics and amplitude of changes in venous return and right atrial pressure (central venous pressure) in response to pressor stimuli were studied in acute experiments on cats. The increase in venous return was accompanied by either increase, or decrease in the central venous pressure. Thus, shifts in systemic venous return were not accompanied by simultaneous and co-directed changes in the central venous pressure. These findings suggest the absence of a direct relationship between these parameters.
Tkachenko
B I
BI
Department of Visceral System Physiology, Institute of Experimental Medicine, Russian Academy of Medical Sciences, St. Petersburg.
Evlakhov
V I
VI
Poyasov
I Z
IZ
D000818:Animals; D016275:Atrial Function; D001783:Blood Flow Velocity; D001794:Blood Pressure; D002415:Cats; D002496:Central Venous Pressure / Q000502:physiology*; D006439:Hemodynamics; D014680:Veins / Q000502:physiology*; D014682:Vena Cava, Inferior / Q000502:physiology*; D014683:Vena Cava, Superior / Q000502:physiology*