Department of Medicine and Surgery, University of Insubria, Varese, Italy.
Department of Pathology, Faculty of Medicine and Surgery, University of Malta, Msida, Malta.
Expert Rev Hematol. 2023 Feb;16(2):121-129. doi: 10.1080/17474086.2023.2184340. Epub 2023 Feb 27.
Liver cirrhosis is accompanied by several hemostatic alterations, which contribute to the current theory of "rebalanced hemostasis." Splanchnic vein thrombosis (SVT) is a frequent complication of liver cirrhosis (17-26% of the cirrhotic patients), and liver cirrhosis is a common risk factor for SVT (24-28% of SVT cases).
This narrative review aims to describe the current state of the art on the anticoagulant treatment of cirrhotic SVT, with a particular focus on the possible role of the direct oral anticoagulants (DOACs) and recent guidelines on this topic.
Early anticoagulant therapy is recommended in cirrhotic patients with acute SVT, to obtain vessel recanalization and decrease the rates of portal hypertension-related complications. Gastroesophageal varices do not represent a contraindication to anticoagulation, if adequate prophylaxis of variceal bleeding is established, and varices band ligation can be safely performed without the need to stop the anticoagulant treatment. The conventional treatment of cirrhotic SVT consisted of low molecular weight heparin, as initial treatment of choice, eventually followed by vitamin K antagonists, but the DOACs can be considered as a reasonable alternative in patients with compensated liver cirrhosis.
肝硬化伴有多种止血变化,这有助于当前的“平衡止血”理论。肝门静脉血栓形成(SVT)是肝硬化的常见并发症(17-26%的肝硬化患者),而肝硬化是 SVT 的常见危险因素(24-28%的 SVT 病例)。
本叙述性评论旨在描述肝硬化性 SVT 的抗凝治疗现状,特别关注直接口服抗凝剂(DOAC)的可能作用以及该主题的最新指南。
急性 SVT 的肝硬化患者推荐早期抗凝治疗,以实现血管再通并降低与门静脉高压相关并发症的发生率。胃食管静脉曲张并不构成抗凝治疗的禁忌症,如果建立了充足的静脉曲张出血预防措施,并且可以安全地进行静脉曲张结扎而无需停止抗凝治疗。肝硬化性 SVT 的传统治疗包括低分子量肝素,作为首选的初始治疗,最终可转为维生素 K 拮抗剂,但 DOAC 可被认为是代偿性肝硬化患者的合理替代治疗。