Usage of Direct Acting Oral Anticoagulants in Cirrhotic and Non-Cirrhotic Portal Vein Thrombosis: A Systematic Review.

Thrombosis of the portal vein (PVT) is generally seen in the setting of liver cirrhosis and to a lesser extent in the absence of cirrhosis. There is no clear guidance in relation to approaching treatment with anticoagulation in this condition. The professional societies and guidelines recommend treatment with traditional anticoagulation like low-molecular-weight heparin and vitamin-K antagonists in patients presenting with acute portal vein thrombosis. There is no clarity in relation to treatment in the setting of chronic PVT and in patients with cirrhosis. Also, the role of direct-acting oral anticoagulants (DOACs) that are becoming a preferred choice for anticoagulation for various other indications is not clear in the case of PVT. There are a very few studies in the medical literature that have investigated the role of DOACs in patients with PVT in different settings. Thus, we performed a systematic review of the literature to study the use of DOACs in PVT in patients with and without cirrhosis. The results of the available studies show that DOACS appears to be a promising choice for the treatment of patients with PVT. The availability of more data in the future along with better availability of the approved reversal agents for various DOACs is expected to make DOACS a preferred choice for the clinicians to treat patients with PVT.