Department of Anaesthesiology, RWTH Aachen University Hospital, Aachen, Germany.
Ludwig Boltzmann Institute for Traumatology, The Research Centre in Cooperation with AUVA, Vienna, Austria.
Curr Opin Anaesthesiol. 2024 Apr 1;37(2):101-109. doi: 10.1097/ACO.0000000000001349. Epub 2024 Jan 19.
The advent of direct oral anticoagulants (DOACs) marks a significant milestone in anticoagulant treatment. However, DOACs can exacerbate bleeding, which is challenging for the treating clinician, especially when combined with traumatic injury.
In major bleeding associated with DOACs, rapid reversal of the anticoagulant effects is crucial. Recent observational and nonrandomized interventional trials have demonstrated the effectiveness of the specific antidotes andexanet alfa and idarucizumab as well as the unspecific prothrombin complex concentrates (PCCs) to counteract the anticoagulant effects of DOACs. The European Society of Anaesthesiology and Intensive Care guideline for severe perioperative bleeding and the European trauma guideline propose divergent recommendations for the use of andexanet alfa and PCC to obtain hemostasis in Factor Xa inhibitor-related bleeding. The conflicting recommendations are due to limited evidence from clinical studies and the potential increased risk of thromboembolic complications after the administration of andexanet. Regarding dabigatran-associated major bleeding, both guidelines recommend the specific reversal agent idarucizumab as first-line therapy.
Current guidelines recommend specific antidots and PCCs in DOAC-related major bleeding. Prospective randomized trials comparing specific vs. nonspecific hemostatic agents in the perioperative setting are needed to evaluate the effectiveness and safety of the hemostatic agents.
直接口服抗凝剂 (DOAC) 的出现标志着抗凝治疗的一个重要里程碑。然而,DOAC 会加剧出血,这对治疗医生来说是一个挑战,尤其是在与创伤性损伤合并时。
在与 DOAC 相关的大出血中,快速逆转抗凝作用至关重要。最近的观察性和非随机干预性试验已经证明了特异性解毒剂以及依达鲁单抗和andexanet alfa 以及非特异性凝血酶原复合物浓缩物 (PCC) 对抗 DOAC 抗凝作用的有效性。欧洲麻醉学会和重症监护医学学会严重围手术期出血指南以及欧洲创伤指南对依达鲁单抗和 PCC 在因子 Xa 抑制剂相关出血中获得止血的应用提出了不同的建议。相互矛盾的建议是由于临床研究证据有限,以及依达鲁单抗给药后血栓栓塞并发症风险增加。关于达比加群相关的大出血,两个指南都推荐使用特异性逆转剂依达鲁单抗作为一线治疗。
目前的指南建议在 DOAC 相关的大出血中使用特异性解毒剂和 PCC。需要进行前瞻性随机试验,比较围手术期特异性和非特异性止血剂,以评估止血剂的有效性和安全性。