Portal Venous Thrombosis or Sclerosis in Liver Transplantation Candidates: Preoperative CT Findings and Correlation with Surgical Procedure

Abstract

Before OLT, CT can aid in assessment of PV and associated findings and in surgical management.

MR Evaluation of Portal Hypertensive Collateral Shunting Vessels for Predicting Outcome after Transjugular Intrahepatic Portosystemic Shunt

“…Our results suggested that development of collateral shunts cannot be used to predict PV pressure, PV-IVC pressure gradient, or the rate of therapeutic success of TIPS. Our results concerning PV diameter are similar to those of Lafortune's conventional angiographic study 16 but contrary to those of Brancatelli and colleagues, 18 who evaluated only spleno-renal shunt and patients with portal complications, such as thrombosis or sclerosis. This discrepancy may be explained by the diŠerences in study design and population.…”

“…Preprocedural cross-sectional imaging of the liver and portal system can detect important contraindications to TIPS placement, such as multiple or huge hepatic cysts or hepatocellular carcinomas or obstruction or thrombosis of the portal or hepatic veins. 1,[9][10][11][12][13][14] Many researchers have investigated the relationships between diameter of the portal vein and portal pressure, 16 ‰ow direction, 17 development of the shunting vessels, 18 diameter of the shunting vessels and gastroesophageal bleeding, 19 or onset of encephalopathy. 20 Ito and associates 21 recently reported decreased diameter and hepatopetal ‰ow of the left gastric vein and the presence of non-variceal portosystemic shunt as predictive factors for variceal relapse after endoscopic therapies.…”

“…This cut-oŠ value was set based on results of previous reports. [16][17][18][19][20] Statistical analysis We performed statistical analysis using statistical analysis software (StatView version 5.0, SAS, Cary, NC, USA); compared mean age, Child-Pugh score, PV pressure, PV-IVC pressure gradient, post-TIPS pressure gradient, or PV diameter between the 2 groups using unpaired t test; and compared sex, emergent case number, or therapeutic success, early mortality, onset or worsening of hepatic encephalopathy, technical di‹culty, or shunt dysfunction rates after TIPS using Fisher's exact probability test. Quantitative variables were expressed as mean±standard deviation (SD), and statistical signiˆcance was established as Pº0.05.…”

Cost of treatment in HBeAg-Negative Chronic Hepatitis B Patients with 10-Year Projection Analysis

“…Increased intrahepatic portal resistance causes portal hypertension. Portosystemic collaterals are developed to alter the blood flow from the high-pressure portal system to the low-pressure systemic circulation [1,[4][5][6]9].…”

“…PVT was defined as the presence of the occlusive thrombus within the lumen of the portal vein or cordlike structure with no patent lumen of the portal vein [4]. A spontaneous splenorenal shunt was defined as the anastomosis of the splenic vein or perisplenic varices to an enlarged left renal vein.…”