DeLoughery Emma P, DeLoughery Thomas G
aMayo Clinic School of Medicine, Rochester, MinnesotabDivision of Hematology/Medical Oncology, Knight Cancer InstitutecDivision of Laboratory Medicine, Department of PathologydDivision of Hematology/Medical Oncology, Department of Pediatrics, Oregon Health & Science University, Portland, Oregon, USA.
Blood Coagul Fibrinolysis. 2017 Dec;28(8):612-616. doi: 10.1097/MBC.0000000000000645.
: When patients on anticoagulation present with intracranial bleeding, stopping the bleeding is paramount. Despite the availability of multiple options to reverse anticoagulation, no study has directly compared the effectiveness of the procoagulants recombinant activated factor VII (rFVIIa), the rFVIIa and 3-factor prothrombin complex concentrate (PCC) combination, and 4-factor PCC on improving patient outcomes compared with a control. This study examined the medical records of 197 warfarin patients with intracranial hemorrhage, an initial international normalized ratio (INR) greater than 1.5, and who received rFVIIa (26), the combination (84), 4-PCC (50), or no procoagulant, the control group (37). Mortality, length of stay, location discharged, change in INR prior to and postdrug administration, plasma use, and number of thromboembolic complications were used to assess effectiveness. Although INR decreased in all groups (1.31 rFVIIa vs. 2.04 combination vs. 1.41 4-PCC vs. 1.20 control, P = 0.07), the combination group had the greatest percentage to reach an INR of less than 1.3 (46.2 vs. 73.8 vs. 58.0 vs. 43.2%, P = 0.004). The combination and control groups experienced a high, though nonsignificant, number of thromboembolic complications (5.6 vs. 19.0 vs. 7.7 vs. 12.9%, P = 0.533). The rFVIIa group used the most plasma and had the longest length of stay. Mortality did not differ significantly among groups. Although the combination improved INR compared with control, this had a high number of complications. Judicious use of procoagulants is recommended due to their expense and lack of significant improvement in outcomes compared with control.
接受抗凝治疗的患者发生颅内出血时,止血至关重要。尽管有多种逆转抗凝作用的方法,但尚无研究直接比较促凝血剂重组活化因子VII(rFVIIa)、rFVIIa与三因子凝血酶原复合物浓缩剂(PCC)联合使用以及四因子PCC与对照组相比在改善患者预后方面的有效性。本研究检查了197例华法林治疗的颅内出血患者的病历,这些患者初始国际标准化比值(INR)大于1.5,且接受了rFVIIa治疗(26例)、联合治疗(84例)、四因子PCC治疗(50例)或未接受促凝血剂治疗(对照组,37例)。采用死亡率、住院时间、出院地点、用药前后INR的变化、血浆使用情况以及血栓栓塞并发症的数量来评估有效性。尽管所有组的INR均下降(rFVIIa组为1.31,联合治疗组为2.04,四因子PCC组为1.41,对照组为1.20,P = 0.07),但联合治疗组达到INR小于1.3的百分比最高(分别为46.2%、73.8%、58.0%和43.2%,P = 0.004)。联合治疗组和对照组的血栓栓塞并发症数量较多,尽管无统计学意义(分别为5.6%、19.0%、7.7%和12.9%,P = 0.533)。rFVIIa组使用的血浆最多,住院时间最长。各组之间的死亡率无显著差异。尽管联合治疗组与对照组相比INR有所改善,但并发症数量较多。鉴于促凝血剂费用较高且与对照组相比在改善预后方面无显著改善,建议谨慎使用。