Dipartimento di Medicina Interna e Specialità Mediche, Sapienza Università di Roma, Rome, Italy.
Dig Liver Dis. 2012 Apr;44(4):275-9. doi: 10.1016/j.dld.2011.10.016. Epub 2011 Nov 25.
Bleeding complications, particularly in the gastro-intestinal tract, may complicate the clinical course of liver cirrhosis. Coexistence of abnormal global tests exploring the platelet and clotting systems generated the hypothesis that cirrhotic patients have "coagulopathy" predisposing to bleeding complications. Using more sophisticated laboratory methods this hypothesis has been partly confuted as cirrhotic patients actually disclose an ongoing prothrombotic state in the portal and systemic circulation that could predispose to thrombosis. Recent data of the literature support this hypothesis as portal vein thrombosis and peripheral thrombosis are frequent features of cirrhosis. We reviewed the literature data to assess the prevalence of bleeding and thrombotic complication in cirrhosis and the role of clotting activation in precipitating them. Whilst it appears scarcely relevant the interplay between the so called "coagulopathy" and bleeding, the interplay between clotting activation and thrombosis seems to be relevant but needs more accurate investigation in larger study populations.
出血并发症,特别是在胃肠道,可能会使肝硬化的临床病程复杂化。异常的血小板和凝血系统的全面检查结果提示肝硬化患者存在“凝血障碍”,易发生出血并发症。使用更复杂的实验室方法,这一假说部分被否定,因为肝硬化患者实际上在门脉和全身循环中显示出持续的促血栓形成状态,这可能导致血栓形成。最近的文献数据支持这一假说,因为门静脉血栓形成和外周血栓形成是肝硬化的常见特征。我们复习了文献数据,以评估肝硬化出血和血栓并发症的发生率,以及凝血激活在其中的作用。虽然所谓的“凝血障碍”与出血之间的相互作用似乎关系不大,但凝血激活与血栓形成之间的相互作用似乎很重要,但需要在更大的研究人群中进行更精确的研究。