Department of Medicine, Division of Hematology, The Ottawa Hospital, Ottawa, ON, Canada.
Ottawa Hospital Research Institute, Ottawa, ON, Canada.
J Thromb Haemost. 2017 May;15(5):925-930. doi: 10.1111/jth.13670. Epub 2017 Apr 3.
Essentials Studies evaluating the procedural interruption of direct oral anticoagulants (DOACs) are lacking. We conducted a study of the interruption of DOACs for prior venous thromboembolic disease (VTE). The post-operative risks of recurrent VTE and major bleeding are low in this patient population. A scheme based on half-life and procedure-related bleeding appears safe and efficacious.
Background Direct oral anticoagulants (DOACs) are increasingly being used in the setting of venous thromboembolic disease (VTE). There is little evidence to guide the peri-procedural interruption of DOACs in this patient population. A number of studies have evaluated the perioperative interruption of DOACs based on half-life of the anticoagulant and the underlying procedural bleeding risk in patient with atrial fibrillation, but it remains unclear whether these findings can be extended to patients with VTE. Objective Evaluate thrombotic and bleeding outcomes following the perioperative interruption of direct oral anticoagulation in patients with prior VTE. Methods We conducted a retrospective analysis of consecutive patients on a DOAC for prior VTE requiring temporary interruption of anticoagulation for an invasive procedure. The primary efficacy outcome was the 30-day symptomatic VTE rate, and the primary safety outcome was the 30-day major bleeding rate. Secondary outcomes included overall mortality and the rate of clinically relevant non-major bleeding. Results A total of 190 patients were included in the analysis. The 30-day VTE rate was 1.05% (95% CI, 0.29-3.8%) and the 30-day major bleeding rate was 0.53% (95% CI, 0.09-2.93%). There were no deaths during the 30-day follow-up period. The rate of clinically relevant non-major bleeding was 3.16% (95%CI , 1.46-6.72%). Conclusions The perioperative interruption of DOACs in the setting of VTE, using a strategy that considers the half-life of the DOAC and the underlying procedural bleeding risk, appears to be both safe and effective.
直接口服抗凝剂(DOACs)在静脉血栓栓塞症(VTE)的治疗中越来越多地被应用。在这种患者人群中,几乎没有证据可以指导 DOAC 的围手术期中断。一些研究已经根据抗凝剂半衰期和房颤患者的基础手术出血风险评估了 DOAC 的围手术期中断,但尚不清楚这些发现是否可以扩展到 VTE 患者。
评估 VTE 病史患者中 DOAC 围手术期中断后的血栓形成和出血结局。
我们对连续接受 DOAC 治疗 VTE 且因侵入性操作需要暂时中断抗凝的患者进行了回顾性分析。主要疗效结局是 30 天有症状的 VTE 发生率,主要安全性结局是 30 天大出血发生率。次要结局包括总死亡率和临床相关非大出血发生率。
共纳入 190 例患者。30 天 VTE 发生率为 1.05%(95%CI,0.29-3.8%),30 天大出血发生率为 0.53%(95%CI,0.09-2.93%)。在 30 天随访期间无死亡。临床相关非大出血发生率为 3.16%(95%CI,1.46-6.72%)。
在 VTE 背景下,采用考虑 DOAC 半衰期和基础手术出血风险的策略中断 DOAC 治疗,既安全又有效。