Beyond the Guidelines: Anticoagulant Treatment of Patients with Recent Portal Vein Thrombosis in the Setting of Liver Cirrhosis

Abstract Portal vein thrombosis, in the clinical setting of liver cirrhosis, is a complication which increases mortality rate by leading to specific complications. Its presence also serves as a negative prognostic factor for these patients. Specialized literature, although rich in papers on this subject, presents loose and sometimes contradictory information regarding its prognosis and specific treatment. This paper brings into discussion the issue of recent portal vein thrombosis in cirrhotic patients, with emphasis on indications for initiation of anticoagulant therapy and the optimal drug of choice. It also highlights the utility of using correct terminology for facilitating clinical approach of guideline recommendations as well as increasing the quality of published scientific papers. The coagulation homeostasis of the cirrhotic patient presents many particularities that can make the optimal therapeutic choice extremely difficult when portal vein thrombosis is established. Absence of randomized clinical trials and lack of consensus regarding anticoagulant treatment in these patients leaves it up to the clinician to decide when and what anticoagulant to use. Analysis of the newest guidelines and recent meta-analysis made it possible to identify the right context for initiating therapy with the most used anticoagulants currently: low molecular weight heparin, vitamin K antagonists and direct oral anticoagulants.