The relationship of hepatic circulation and the wedged hepatic vein pressure (W.H.V.P) and portal vein pressure in portal hypertension

1966 ◽  
Vol 1 (2) ◽  
pp. 69-69
Author(s):  
Z. Honda
Keyword(s):  
Portal Hypertension ◽  
Portal Vein ◽  
Hepatic Vein ◽  
Hepatic Circulation ◽  
Portal Vein Pressure ◽  
Relationship Of ◽  
The Relationship ◽  
Wedged Hepatic Vein Pressure

Comparison between portal vein pressure and wedged hepatic vein pressure in hepatitis B-related cirrhosis

1989 ◽  
Vol 9 (3) ◽  
pp. 326-330 ◽  
Author(s):  
Han-Chieh Lin ◽  
Yang-Te Tsai ◽  
Fa-Yauh Lee ◽  
Ting-Tsung Chang ◽  
Sun-Sang Wang ◽  
...  
Keyword(s):  
Hepatitis B ◽  
Portal Vein ◽  
Hepatic Vein ◽  
Portal Vein Pressure ◽  
Wedged Hepatic Vein Pressure

scholarly journals COMPARISON OF WEDGED HEPATIC VEIN PRESSURE WITH PORTAL VEIN PRESSURE IN HUMAN SUBJECTS WITH CIRRHOSIS 12

1955 ◽  
Vol 34 (2) ◽  
pp. 213-218 ◽  
Author(s):  
Telfer B. Reynolds ◽  
Donald C. Balfour ◽  
David C. Levinson ◽  
William P. Mikkelsen ◽  
Arthur C. Pattison
Keyword(s):  
Portal Vein ◽  
Hepatic Vein ◽  
Human Subjects ◽  
Portal Vein Pressure ◽  
Wedged Hepatic Vein Pressure

scholarly journals The Surgical Treatment for Portal Hypertension: A Systematic Review and Meta-Analysis

2013 ◽  
Vol 2013 ◽  
pp. 1-10 ◽  
Author(s):  
Lanning Yin ◽  
Haipeng Liu ◽  
Youcheng Zhang ◽  
Wen Rong
Keyword(s):  
Portal Hypertension ◽  
Portal Vein ◽  
Variceal Bleeding ◽  
Meta Analysis ◽  
Portal Pressure ◽  
Combined Treatment ◽  
Cochrane Library ◽  
Quality Of Reporting ◽  
Portal Vein Pressure ◽  
Shunt Procedure

Aim. To compare the effectiveness of surgical procedures (selective or nonselective shunt, devascularization, and combined shunt and devascularization) in preventing recurrent variceal bleeding and other complications in patients with portal hypertension. Methods. A systematic literature search of the Medline and Cochrane Library databases was carried out, and a meta-analysis was conducted according to the guidelines of the Quality of Reporting Meta-Analyses (QUOROM) statement. Results. There were a significantly higher reduction in rebleeding, yet a significantly more common encephalopathy () in patients who underwent the shunt procedure compared with patients who had only a devascularization procedure. Further, there were no significant differences in rebleeding, late mortality, and encephalopathy between selective versus non-selective shunt. Next, the decrease of portal vein pressure, portal vein diameter, and free portal pressure in patients who underwent combined treatment with shunt and devascularization was more pronounced compared with patients who were treated with devascularization alone (). Conclusions. This meta-analysis shows clinical advantages of combined shunt and devascularization over devascularization in the prevention of recurrent variceal bleeding and other complications in patients with portal hypertension.

Assessment of the agreement between wedge hepatic vein pressure and portal vein pressure in cirrhotic patients

2005 ◽  
Vol 37 (8) ◽  
pp. 601-608 ◽  
Author(s):  
U. Thalheimer ◽  
G. Leandro ◽  
D.N. Samonakis ◽  
C.K. Triantos ◽  
D. Patch ◽  
...  
Keyword(s):  
Portal Vein ◽  
Hepatic Vein ◽  
Portal Vein Pressure ◽  
Cirrhotic Patients

Portal venous pressure and portasystemic shunting in experimental portal hypertension

1989 ◽  
Vol 257 (1) ◽  
pp. G52-G57 ◽  
Author(s):  
J. G. Geraghty ◽  
W. J. Angerson ◽  
D. C. Carter
Keyword(s):  
Portal Hypertension ◽  
Portal Vein ◽  
Venous Pressure ◽  
Portal Pressure ◽  
Rapid Change ◽  
Quadratic Function ◽  
Portal Venous Pressure ◽  
Portal Vein Ligation ◽  
Strong Positive Correlation ◽  
The Relationship

The relationship between portal venous pressure and the degree of portasystemic shunting was studied in portal vein-ligated and cirrhotic rats anesthetized with halothane. One day after partial portal vein ligation there was a strong positive correlation (r = 0.80, n = 7) between portal pressure and shunting of mesenteric venous blood as measured by injection of radioactive microspheres. The relationship subsequently underwent rapid change but stabilized by 14 days postligation, when higher levels of shunting were again associated with higher portal pressures up to a limit of approximately 70% shunting, above which pressures did not increase further. This relationship was well described by a quadratic function (r = 0.75, n = 17). In cirrhotic rats there was no relationship between portal pressure and shunting (r = -0.01, n = 10). The results suggest that in the prehepatic model there is little inherent variability in capacity to develop shunts, which open to a degree directly related to portal pressure, but that this relationship may be altered in cirrhotic portal hypertension.

scholarly journals The relationship between intrahepatic portal systemic shunts and microsphere induced portal hypertension in the rat liver

Gut ◽  
1998 ◽  
Vol 42 (2) ◽  
pp. 276-282 ◽  
Author(s):  
X Li ◽  
I S Benjamin ◽  
B Alexander
Keyword(s):  
Blood Flow ◽  
Portal Hypertension ◽  
Steady State ◽  
Portal Vein ◽  
Rat Liver ◽  
Venous Pressure ◽  
Portal Venous Pressure ◽  
Portal Vein Ligation ◽  
The Relationship ◽  
Wedged Hepatic Venous Pressure

Background—Portal hypertension is associated with gross haemodynamic disturbances characterised by high cardiac output, low peripheral vascular resistance, increased splanchnic blood flow, and portal systemic shunting.Aims—To study the relationship between intrahepatic portal systemic shunts and microsphere induced portal hypertension in the rat liver.Methods—Different sized microspheres were sequentially injected into the portal vein of male Wistar rats.Results—Steady state portal venous pressure was increased by 102.2 (35.6)% (14.9 (3.6) mm Hg) and 272.3 (78.0)% (24.0 (2.2) mm Hg) above the basal pressure following sequential injections of 15 and 80 μm diameter microspheres, respectively. Sequential injection of 15, 40, and 80 μm diameter microspheres in either ascending or descending order of size did not generate further increases in portal venous pressure. A single injection of 1.8 × 105 80 μm microspheres consistently produced a steady state portal venous pressure of 19.0 (1.3) mm Hg but did not approach the much higher value of 36.6 (43.2) mm Hg measured during clamping of the portal vein. These data indicate that the opening of patent intrahepatic shunts was responsible for the reduced pressures observed during microsphere injections and further evidence for this was provided by the location of microspheres in the pulmonary vascular bed. The elevation in portal venous pressure achieved by microsphere injections was not significantly different to that produced in rats subjected to partial portal vein ligation (20.7 (0.5) mm Hg, p>0.05). Wedged hepatic venous pressure decreased from 6.7 (0.7) to 3.0 (0.6) mm Hg following injection of 80 μm microspheres, suggesting a decrease in total hepatic blood flow. Conversely, injection of 15 μm microspheres induced an increase in wedged hepatic venous pressure from 7.0 (1.0) mm Hg to 12.4 (1.8) mm Hg, indicating a localised redistribution of blood flow at the presinusoidal level of the portal venous vascular network and increased intrahepatic shunt flow.Conclusion—It is suggested that there may be a protective pathophysiological role for these shunts when the liver is subjected to changes which induce acute portal hypertension.

The relationship of hemorrhoids to portal hypertension

1980 ◽  
Vol 23 (8) ◽  
pp. 567-569 ◽  
Author(s):  
Donald M. Jacobs ◽  
Melvin P. Bubrick ◽  
Gerald R. Onstad ◽  
Claude R. Hitchcock
Keyword(s):  
Portal Hypertension ◽  
Relationship Of ◽  
The Relationship
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