Department of Gastroenterology and Hepatology, Erasmus MC University Medical Center, Rotterdam, The Netherlands.
J Gastrointestin Liver Dis. 2013 Jun;22(2):229-31.
The recently introduced new oral anticoagulants (nOAC) carry a higher gastrointestinal bleeding risk compared to traditional antithrombotic therapy. Current diagnostic coagulation tests are not accurate enough to determine the level of coagulopathy. Besides that, the lack of a specific antidote leaves the endoscopist unsure how to achieve hemostasis during gastrointestinal hemorrhage. In this brief report, we address the (endoscopic) management, when facing a suspected nOAC-associated gastrointestinal hemorrhage. We recommend that specific coagulation tests such as diluted thrombin time and anti-Xa measurement should be made available. Furthermore, nOAC should be stopped. Finally, correcting coagulopathy with administration of prothrombin complex concentrate, recombinant factor VIIa and even hemodialysis should be considered, whereas fresh frozen plasma and vitamin K have no place. The generalizability of these recommendations needs to be confirmed in future studies.
与传统抗血栓治疗相比,最近引入的新型口服抗凝剂(NOAC)具有更高的胃肠道出血风险。目前的诊断性凝血试验不够准确,无法确定凝血功能障碍的程度。此外,缺乏特异性解毒剂使得内镜医生不确定如何在胃肠道出血时实现止血。在本简要报告中,我们将讨论(内镜)管理,当面临疑似与 NOAC 相关的胃肠道出血时。我们建议进行特定的凝血试验,如稀释凝血酶时间和抗 Xa 测量。此外,应停止使用 NOAC。最后,应考虑通过给予凝血酶原复合物浓缩物、重组因子 VIIa 甚至血液透析来纠正凝血功能障碍,而新鲜冷冻血浆和维生素 K 则没有作用。这些建议的普遍性需要在未来的研究中得到证实。