The interaction between hepatic arterial and portal venous blood flows; simultaneous measurement by transit time ultrasonic volume flowmetry.
The interaction between hepatic arterial and portal venous blood flows; simultaneous measurement by transit time ultrasonic volume flowmetry.
复制标题
肝动脉和门静脉血流之间的相互作用；
作者：
F. Jakab;Z. Ráth;F. Schmal;P. Nagy;J. Faller
对14例麻醉的内脏癌（主要是胰头癌）患者，采用通过时间超声体积流量计进行术中肝脏传入循环，即肝动脉和门静脉流量的测量。肝动脉流量、门静脉流量和总肝流量为0.377+/-0.10； 0.614+/-0.21；分别为 0.992 +/- 0.2761/分钟。肝动脉流量与门静脉流量的比率为0.66+/-0.259。门静脉暂时闭塞后，肝动脉流量急剧增加（29.8 +/- 6.1%，p < 0.01），而肝动脉暂时闭塞对门静脉循环没有任何显着影响。肝动脉流量和门静脉流量之间的相互作用存在很大争议，但是，正如本文提供的数据所示，毫无疑问，门静脉流量的减少会立即引起肝动脉循环的显着增加。
Intra-operative measurement of the afferent circulation of the liver, namely hepatic artery and portal venous flow was carried out in 14 anesthetized patients with carcinoma of the splanchnic area, mainly in the head of the pancreas, by means of transit time ultrasonic volume flowmetry. The hepatic artery flow, portal venous flow and total hepatic flow were 0.377 +/- 0.10; 0.614 +/- 0.21; 0.992 +/- 0.2761/min, respectively. The ratio of hepatic arterial flow to portal venous flow was 0.66 +/- 0.259. There was a sharp, significant increase in hepatic arterial flow (29.8 +/- 6.1%, p < 0.01) after the temporary occlusion of portal vein, while the temporary occlusion of the hepatic artery did not have any significant effect on portal venous circulation. The interaction between hepatic arterial flow and portal venous flow is much in dispute, but, as the data presented here show, there is no doubt that the decrease in portal venous flow immediately gives rise to a significant increase in hepatic artery circulation.