Tkachenko B I, Evlakhov V I, Poyasov I Z
Department of Visceral System Physiology, Institute of Experimental Medicine, Russian Academy of Medical Sciences, St. Petersburg, Russia.
Bull Exp Biol Med. 2002 Oct;134(4):318-20. doi: 10.1023/a:1021931508946.
Dynamics of changes in right-atrial pressure and venous pressure measured in the inferior and superior vena cava at their orifices (central venous pressure) after bolus injection of 20 ml physiological saline or epinephrine (5.0 mg/kg) was studied in acute experiments on cats. The initial pressure in the right atrium was equal to that in caval veins. Pressor stimuli either increased or decreased the right atrial pressure, but always increased blood pressure in the caval veins. Moreover, right atrial pressure returned to the initial level more rapidly compared to that in caval veins. Our results suggest that the dynamics of the right-atrial pressure does not reflect the shifts in the central venous pressure.
在猫的急性实验中，研究了在快速推注20毫升生理盐水或肾上腺素（5.0毫克/千克）后，右心房压力以及在下腔静脉和上腔静脉开口处测量的静脉压力（中心静脉压）的变化动态。右心房的初始压力与腔静脉中的压力相等。升压刺激要么增加要么降低右心房压力，但总是增加腔静脉中的血压。此外，与腔静脉相比，右心房压力恢复到初始水平的速度更快。我们的结果表明，右心房压力的动态变化并不能反映中心静脉压的变化。
