scholarly journals Optimizing access in the treatment of acute portal vein thrombosis: a pictorial review of different methods of obtaining access to the portal venous system for the purpose of lytic therapy with emphasis on the advantages and disadvantages of each technique

2013 ◽  
Vol 24 (4) ◽  
pp. S149-S150 ◽  
Author(s):  
M.T. Gudmundsson ◽  
M.M. Morshedi ◽  
S. Kikolski ◽  
S. Rose ◽  
H. Aryafar
Keyword(s):  
Portal Vein ◽  
Portal Vein Thrombosis ◽  
Venous System ◽  
Portal Venous System ◽  
Vein Thrombosis ◽  
Advantages And Disadvantages ◽  
Pictorial Review

scholarly journals The ABCD of portal vein thrombosis: a systematic approach

2020 ◽  
Vol 53 (6) ◽  
pp. 424-429
Author(s):  
Alexandre Makoto Minoda ◽  
Raissa Brito Fernandes Cadete ◽  
Sara Reis Teixeira ◽  
Valdair Francisco Muglia ◽  
Jorge Elias Junior ◽  
...  
Keyword(s):  
Portal Vein ◽  
Portal Vein Thrombosis ◽  
Systematic Approach ◽  
Careful Analysis ◽  
Venous System ◽  
Portal Venous System ◽  
Vein Thrombosis ◽  
Case Files ◽  
Collateral Vessels ◽  
And Diffusion

Abstract Portal vein thrombosis refers to complete or partial obstruction of the portal venous system, in the intrahepatic or extrahepatic venous tract or even in the splenic or superior mesenteric veins. This common and potentially fatal condition can develop in various clinical contexts, especially those of liver cirrhosis, hepatocellular carcinoma, and other solid tumors. Certain characteristics, such as the time since the onset of the thrombus (acute or chronic), its biology (hematic or tumoral), the presence of collateral vessels, and the magnetic resonance imaging aspects, are important components of a thorough, careful analysis, as well as informing decisions regarding the appropriate therapeutic strategy. Here, we present a brief review of the anatomy of the portal venous system and a systematic approach to analyzing the condition, using a mnemonic (ABCD, for age, biology, collaterals, and diffusion). We discuss the various imaging methods and illustrate our discussion with images selected from the case files archived at our facility.

scholarly journals Portal Vein Thrombosis: Diagnosis and Endovascular Management

2021 ◽  
Author(s):  
Connie Ju ◽  
Xin Li ◽  
Sameer Gadani ◽  
Baljendra Kapoor ◽  
Sasan Partovi
Keyword(s):  
Portal Vein ◽  
Portal Vein Thrombosis ◽  
Underlying Disease ◽  
Venous System ◽  
Portal Venous System ◽  
Endovascular Management ◽  
Vein Thrombosis ◽  
Endovascular Interventions ◽  
Clinically Significant ◽  
Optimal Approach

Background Portal vein thrombosis (PVT) is a rare but severe entity that can cause clinically significant sequela such as worsening portal hypertension or mesenteric ischemia. Those cases refractory to medical management may be referred for endovascular intervention. Several technical considerations have been described in the literature, but a cohesive comparison of these multiple techniques is lacking. Methods The purpose of this article is to review the diagnosis and endovascular management of PVT, including areas in which further research is warranted. Results Cases of PVT can be readily diagnosed using ultrasound, computed tomography, or magnetic resonance imaging. Treatment often begins with systemic anticoagulation and endovascular interventions may be used in selected cases. Determining the optimal approach to accessing the portal venous system depends on the underlying disease and chronicity of the thrombus and the degree of occlusion. Once access to the portal venous system is established, catheter-directed therapy may be performed to achieve recanalization. Conclusion Despite the heterogeneity in patient presentation, cases of PVT can be readily diagnosed across several imaging modalities. Strategizing interventional approaches involves evaluation of the underlying disease and the chronicity of the thrombus. Key Points:  Citation Format

CT features of non-malignant portal vein thrombosis: A pictorial review

2012 ◽  
Vol 36 (6) ◽  
pp. 561-568 ◽  
Author(s):  
Xingshun Qi ◽  
Guohong Han ◽  
Chuangye He ◽  
Zhanxin Yin ◽  
Wengang Guo ◽  
...  
Keyword(s):  
Portal Vein ◽  
Portal Vein Thrombosis ◽  
Vein Thrombosis ◽  
Pictorial Review ◽  
Ct Features

scholarly journals Diagnosis and management of portal vein thrombosis in patients with cirrhosis of liver

2018 ◽  
Vol 6 (26) ◽  
pp. 10-16
Author(s):  
Logan Adams ◽  
Somedeb Ball
Keyword(s):  
Portal Vein ◽  
Portal Vein Thrombosis ◽  
Common Complication ◽  
Portal Venous System ◽  
Vein Thrombosis ◽  
Contrast Enhanced ◽  
Chronic Complication ◽  
Hypertension Portal ◽  
Intrahepatic Portosystemic Shunt ◽  
Cirrhosis Of Liver

Portal vein thrombosis (PVT) is an occlusion of the portal venous system and is a common complication of liver cirrhosis. It can present as either an acute or chronic complication. Acute PVT can present with abdominal pain, diarrhea, ileus, and bleeding. Chronic PVT is often asymptomatic; however, it can be discovered in cases of worsening portal hypertension. Portal vein thrombosis is diagnosed by imaging modalities, such as ultrasound and computed tomography. Contrast-enhanced imaging can be used in cases with difficult visualization. Despite the hemostatic imbalance in cirrhosis, anticoagulants can be safely used to recanalize the vein. Transjugular intrahepatic portosystemic shunt procedures are also an effective method for recanalization.

scholarly journals Anomalies of the Portal Venous System in Dogs and Cats as Seen on Multidetector-Row CT: An Overview and Systematization Proposal

2019 ◽  
Author(s):  
Giovanna Bertolini
Keyword(s):  
Portal Vein ◽  
Venous System ◽  
Low Flow ◽  
Portal System ◽  
Multidetector Row Computed Tomography ◽  
Portal Venous System ◽  
Multidetector Row Ct ◽  
Multidetector Row ◽  
Vein Thrombosis ◽  
Portosystemic Shunts

This article offers an overview of congenital and acquired vascular anomalies involving the portal venous system in dogs and cats, as determined by multidetector-row computed tomography angiography. Congenital absence of the portal vein, portal vein hypoplasia, portal vein thrombosis and portal collaterals are described. Portal collaterals are further discussed as high- and low-flow connections, and categorized in hepatic arterioportal malformation, arteriovenous fistula, end-to-side and side-to-side congenital portosystemic shunts, acquired portosystemic shunts, cavoportal and porto-portal collaterals. Knowledge of different portal system anomalies helps understand the underlying physiopathological mechanism and is essential for surgical and interventional approaches.

scholarly journals Anomalies of the Portal Venous System in Dogs and Cats as Seen on Multidetector-Row Computed Tomography: An Overview and Systematization Proposal

2019 ◽  
Vol 6 (1) ◽  
pp. 10 ◽  
Author(s):  
Giovanna Bertolini
Keyword(s):  
Computed Tomography ◽  
Portal Vein ◽  
Venous System ◽  
Low Flow ◽  
Portal System ◽  
Multidetector Row Computed Tomography ◽  
Portal Venous System ◽  
Multidetector Row ◽  
Vein Thrombosis ◽  
Portosystemic Shunts

This article offers an overview of congenital and acquired vascular anomalies involving the portal venous system in dogs and cats, as determined by multidetector-row computed tomography angiography. Congenital absence of the portal vein, portal vein hypoplasia, portal vein thrombosis and portal collaterals are described. Portal collaterals are further discussed as high- and low-flow connections and categorized in hepatic arterioportal malformation, arteriovenous fistula, end-to-side and side-to-side congenital portosystemic shunts, acquired portosystemic shunts, cavoportal and porto-portal collaterals. Knowledge of different portal system anomalies helps understand the underlying physiopathological mechanism and is essential for surgical and interventional approaches.

scholarly journals Management of Anticoagulation for Portal Vein Thrombosis in Individuals with Cirrhosis: A Systematic Review

2012 ◽  
Vol 2012 ◽  
pp. 1-6 ◽  
Author(s):  
Geneviève Huard ◽  
Marc Bilodeau
Keyword(s):  
Systematic Review ◽  
Liver Cirrhosis ◽  
Portal Vein ◽  
Portal Vein Thrombosis ◽  
Current Knowledge ◽  
Vein Thrombosis ◽  
Advantages And Disadvantages ◽  
Risk Of Bleeding ◽  
Coagulation Abnormalities ◽  
Increased Risk

Non-neoplastic portal vein thrombosis (PVT) is an increasingly recognized complication of liver cirrhosis. It is often diagnosed fortuitously and can be either partial or complete. The clinical significance of PVT is not obvious except in some situations such as when patients are on the waiting list for liver transplantation. The only known therapy is anticoagulation which has been shown to permit the disappearance of thrombosis and to prevent further extension. Anticoagulation is a challenging therapy in individuals with liver cirrhosis because of the well-recognized coagulation abnormalities observed in that setting and because of the increased risk of bleeding, especially from gastrointestinal tract caused by portal hypertension. We herein review the current knowledge on that topic in order to highlight the advantages and disadvantages of the currently proposed therapeutic attitudes in face of the diagnosis of PVT in individuals with cirrhosis.

scholarly journals Evolution of Nonmalignant Portal Vein Thrombosis in Liver Cirrhosis: A Pictorial Review

2021 ◽  
Vol 12 (10) ◽  
pp. e00409
Author(s):  
Shixue Xu ◽  
Xiaozhong Guo ◽  
Benqiang Yang ◽  
Fernando Gomes Romeiro ◽  
Massimo Primignani ◽  
...  
Keyword(s):  
Liver Cirrhosis ◽  
Portal Vein ◽  
Portal Vein Thrombosis ◽  
Vein Thrombosis ◽  
Pictorial Review
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