Karetová Debora, Bultas Jan
Vnitr Lek. 2014 Nov;60(11):977-84.
Thromboembolic disease (TD) is a relatively common disease with acute risk of death and potential long-term consequences in term of postthrombotic syndrome or chronic pulmonary hypertension. Anticoagulant therapy is the basic therapeutic procedure; thrombolytic therapy and the introduction cava filter are appropriately indicated for individual cases. In past few years, new direct oral anticoagulant drugs (NOAC) have occurred - Xa factor or thrombin inhibitors which have demonstrated the same efficacy and even higher safety in comparison to conventional treatment. In mid 2014, 3 drugs of this group are registered in Czech Republic - rivaroxaban (Xarelto®), dabigatran (Pradaxa®) and apixaban (Eliquis®). These drugs have comparable efficacy and safety but they differ in schedule of dose administration. Rivaroxaban and apixaban can be administered immediately after diagnosis of venous thrombosis or hemodynamically stable pulmonary embolism. LMWH application has to precede few days the administration of dabigatran. Limitation of new drugs is their price. Unavailability of antidotes is temporary because current researches continue to find one for dabigatran and another for both of xabans. Duration of anticoagulant treatment after acute phase depends on the presence of thrombosis risk factors and the individual bleeding risk. Minimal duration of anticoagulant therapy is 3 months, commonly 6-12 months and in high risk patients it is "long term" treatment. Good results of new anticoagulant drugs in trials in term of thromboembolism recurrence prevention may change established habits in TD patients with long term treatment.
血栓栓塞性疾病(TD)是一种相对常见的疾病,具有急性死亡风险,并可能导致血栓形成后综合征或慢性肺动脉高压等潜在的长期后果。抗凝治疗是基本的治疗方法;溶栓治疗和植入下腔静脉滤器适用于个别病例。在过去几年中,出现了新型直接口服抗凝药物(NOAC)——Xa因子或凝血酶抑制剂,与传统治疗相比,它们已证明具有相同的疗效,甚至更高的安全性。2014年年中,该类别的3种药物在捷克共和国注册——利伐沙班(拜瑞妥®)、达比加群(达必加群酯®)和阿哌沙班(艾乐妥®)。这些药物具有相当的疗效和安全性,但在给药方案上有所不同。利伐沙班和阿哌沙班可在诊断为静脉血栓形成或血流动力学稳定的肺栓塞后立即给药。在给予达比加群之前,必须先应用几天低分子肝素。新药的局限性在于其价格。解毒剂暂时无法获得,因为目前的研究仍在继续寻找针对达比加群的解毒剂以及针对两种Xa因子抑制剂的解毒剂。急性期后抗凝治疗的持续时间取决于血栓形成危险因素的存在情况和个体出血风险。抗凝治疗的最短持续时间为3个月,通常为6 - 12个月,高危患者则需“长期”治疗。新型抗凝药物在预防血栓栓塞复发的试验中取得的良好结果可能会改变TD患者长期治疗的既定习惯。