The effect of increased venous return on the venous pressure in patients with congestive heart failure. Am Heart J. 1950 Apr; 39 (4):592–603.Hultgren H N . The effect of increased venous return on the venous pressure in patients with congestive heart failure. Am Heart J. 1950;39:592-...
The effect on blood pressure and mood/sensation changes caused by fostering venous return during dialysis decrease in blood pressure rate of change, during the latter half of dialysis, and the conditions fostering venous return did not show such a decrease. ... Y Hitomi,M Hayashi,Y Kinugawa,....
Varicose veinscan also sometimes lead to circulatory problems with blood return. Veins that are varicosed are weakened and broken, and can often be identified by a spidery, web-like look that appears on the surface of the skin. They can be caused by a number of things, but age and injur...
According to Guyton’s theory of venous reflux, increased right atrial pressure reduces venous return, leading to systemic venous congestion and impaired lactate clearance [30, 31]. Although few studies focused on the correlation between RVSI and lactate levels, evidence supporting a positive ...
We studied effects on venous return of alpha- and beta-adrenergic agonists in anesthetized dogs. Blood from the superior and inferior venae cavae (venous return) was drained at the level of the tricuspid valve into a reservoir, from which blood was pumped into the right atrium at a constant ...
We attempted to identify active contractions of the diaphragm through their effect on the blood flow velocity in the inferior vena cava (IVC). We assumed that contracting the diaphragm should increase cranial flow velocity in IVC by a simultaneous increase in abdominal pressure and decrease in ...
On the other hand, hemorrhage (or any decrease in intravascular volume) has the opposite effect, resulting in a decrease in maximal venous return or cardiac output. In addition, because veins are more compliant than other blood vessels, changes in circulating blood volume produce larger alterations...
Rapid removal of 30% of the blood volume caused significant (p< .05) decreases in all measurements. Conclusions about initial hemodynamic responses to massive hemorrhage are: (1) total peripheral resistance decreased, (2) large vein resistance to flow, venous return, increased, and (3) the ...
Experiments on cats treated with nitroglycerin showed dynamic relationship between changes in caval venous flows: blood flow increased in the superior vena... BI Tkachenko,VI Evlakhov,IZ Poyasov - 《Bull Exp Biol Med》 被引量: 1发表: 2003年 Effect of venous pressure on hepatic microcirculation ...
The main function of the venous system is to collect blood from the capillary networks and to return that blood to the heart. Less commonly recognized, a major function of the venous system is to serve as a reservoir for the blood. About 75% of the systemic blood is found on the venous...