上消化道出血后维生素K拮抗剂恢复使用的最佳时机。一项风险建模分析。

Optimal timing of vitamin K antagonist resumption after upper gastrointestinal bleeding. A risk modelling analysis.

作者信息

Majeed Ammar, Wallvik Niklas, Eriksson Joakim, Höijer Jonas, Bottai Matteo, Holmström Margareta, Schulman Sam

机构信息

Ammar Majeed, MD, Coagulation Unit, Hematology Center, Karolinska University Hospital, 171 76 Stockholm, Sweden, Tel.: +46 8 51773368, E-mail:

出版信息

Thromb Haemost. 2017 Feb 28;117(3):491-499. doi: 10.1160/TH16-07-0498. Epub 2016 Dec 22.

Abstract

The optimal timing of vitamin K antagonists (VKAs) resumption after an upper gastrointestinal (GI) bleeding, in patients with continued indication for oral anticoagulation, is uncertain. We included consecutive cases of VKA-associated upper GI bleeding from three hospitals retrospectively. Data on the bleeding location, timing of VKA resumption, recurrent GI bleeding and thromboembolic events were collected. A model was constructed to evaluate the 'total risk', based on the sum of the cumulative rates of recurrent GI bleeding and thromboembolic events, depending on the timing of VKA resumption. A total of 121 (58 %) of 207 patients with VKA-associated upper GI bleeding were restarted on anticoagulation after a median (interquartile range) of one (0.2-3.4) week after the index bleeding. Restarting VKAs was associated with a reduced risk of thromboembolism (HR 0.19; 95 % CI, 0.07-0.55) and death (HR 0.61; 95 % CI, 0.39-0.94), but with an increased risk of recurrent GI bleeding (HR 2.5; 95 % CI, 1.4-4.5). The composite risk obtained from the combined statistical model of recurrent GI bleeding, and thromboembolism decreased if VKAs were resumed after three weeks and reached a nadir at six weeks after the index GI bleeding. On this background we will discuss how the disutility of the outcomes may influence the decision regarding timing of resumption. In conclusion, the optimal timing of VKA resumption after VKA-associated upper GI bleeding appears to be between 3-6 weeks after the index bleeding event but has to take into account the degree of thromboembolic risk, patient values and preferences.

摘要

对于仍有口服抗凝指征的患者,上消化道(GI)出血后维生素K拮抗剂(VKA)重新开始使用的最佳时机尚不确定。我们回顾性纳入了来自三家医院的VKA相关上消化道出血的连续病例。收集了出血部位、VKA重新开始使用的时间、复发性消化道出血和血栓栓塞事件的数据。构建了一个模型,根据复发性消化道出血和血栓栓塞事件的累积发生率之和,评估取决于VKA重新开始使用时间的“总风险”。207例VKA相关上消化道出血患者中,共有121例(58%)在首次出血后中位(四分位间距)1(0.2 - 3.4)周重新开始抗凝治疗。重新开始使用VKA与血栓栓塞风险降低(HR 0.19;95%CI,0.07 - 0.55)和死亡风险降低(HR 0.61;95%CI,0.39 - 0.94)相关,但复发性消化道出血风险增加(HR 2.5;95%CI,1.4 - 4.5)。如果在首次消化道出血后3周后重新开始使用VKA,复发性消化道出血和血栓栓塞的联合统计模型得出的综合风险会降低,并在首次消化道出血后6周达到最低点。在此背景下,我们将讨论结果的无用性如何影响重新开始使用的时机决策。总之,VKA相关上消化道出血后VKA重新开始使用的最佳时机似乎在首次出血事件后的3 - 6周之间,但必须考虑血栓栓塞风险程度、患者价值观和偏好。

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