• Max Tornkvist, J Gustav Smith, and Ashkan Labaf.
• Department of Cardiology, Clinical Sciences, Lund University and Skane University Hospital, Lund and Malmo, Sweden. Electronic address: max.tornkvist@regionostergotland.se.
• Thromb. Res. 2018 Feb 1; 162: 22-31.

IntroductionApproximately 4-6% of patients treated with oral anticoagulants (OAC) will suffer from major hemorrhage or be in need of urgent surgery necessitating anticoagulant reversal therapy. Several new oral anticoagulants and reversal agents have been introduced that make it difficult for physicians to stay updated on the current evidence of reversal management. This study aims to review the recent literature on oral anticoagulation reversal therapy and to present the current evidence in an easily approachable manner.Materials And MethodsA systematic literature search was conducted using PubMed and EMBASE to identify the latest publications on both vitamin K antagonist (VKA) and direct oral anticoagulant (DOAC) reversal strategies. All studies on humans who received any acute reversal management of VKA treatment were included, except case studies. Since only two studies on acute reversal of DOAC treatment have been published, clinical trials on healthy volunteers were also included.ResultsTwenty-one studies with a total of 4783 VKA treated patients, and 12 studies with a total of 529 DOAC treated patients were included. Elevated INR values due to VKA treatment could be reversed (INR≤1.5) in 63.1% (95% CI: 61.0-65.2) of study subjects after treatment with 4F-PCC, as compared with 12.2% (95% CI: 8.2-16.2) after treatment with fresh frozen plasma (FFP), (p<0.001). Thromboembolism occurred in 1.6% (95% CI: 1.2-2.1) of VKA-patients treated with 4F-PCC, and in 4.5% (95% CI: 2.3-6.7) of FFP-treated patients. To date, reversal of laboratory parameters has been demonstrated for two reversal agents specific to DOACs: idarucizumab for dabigatran reversal and andexanet-alfa for factor Xa-inhibitor reversal.ConclusionsThis review supports the use of PCC for VKA reversal, specifically for 4F-PCC over FFP for laboratory reversal. There are no studies on clinical efficacy of non-specific agents for DOAC reversal and the evidence for laboratory reversal is not consistent.Copyright © 2017 Elsevier Ltd. All rights reserved.

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