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Urgent Reversal of Direct Oral Anticoagulants in Critical and Life-Threatening Bleeding: A Multidisciplinary Expert
Anabela Rodrigues1, Luciana Ricca Gonçalves2, Tiago Gregório3,4
1Serviço de Imuno-Hemoterapia, Unidade Local de Saúde (ULS) Santa Maria, 1649-028 Lisboa, Portugal.
Insights
Direct oral anticoagulants (DOACs) offer benefits but can cause serious bleeding. This expert consensus reviews managing DOAC-related bleeding, focusing on when to use reversal agents for life-threatening events.
Area of Science:
- Pharmacology
- Hematology
- Emergency Medicine
Background:
- Direct oral anticoagulants (DOACs) are increasingly prescribed, offering advantages over vitamin K antagonists.
- Despite improved safety profiles, bleeding remains a significant complication, potentially life-threatening.
- Assessing DOAC activity during bleeding is challenging due to limitations in routine coagulation tests.
Purpose of the Study:
- To provide a narrative review on managing life-threatening bleeding associated with DOACs.
- To offer practical guidance on DOAC reversal strategies in emergency scenarios.
- To focus on patient selection criteria for administering specific DOAC reversal agents.
Main Methods:
- Expert consensus review of current literature and clinical practice.
- Analysis of patient factors influencing DOAC activity and bleeding risk.
- Discussion of specific reversal agents and their appropriate use.
Main Results:
- Bleeding management requires careful consideration of clinical assessment, DOAC dosage, timing of intake, and comorbidities.
- Specific DOAC tests are often unavailable or too slow for emergency use.
- Reversal agents are indicated when clinically relevant DOAC concentrations are suspected or proven in severe bleeding.
Conclusions:
- Effective management of DOAC-related bleeding necessitates a strategic approach to reversal.
- Patient selection is crucial for optimizing the use of specific reversal agents.
- This consensus provides a framework for emergency physicians managing critical bleeding in patients on DOACs.
Abstract:
Direct oral anticoagulants (DOACs) are increasingly being used due to their improved efficacy/safety ratio and lower clinical and economic burden when compared to vitamin K antagonists. However, bleeding is still the most frequent complication associated with DOACs, and although rare, bleeding episodes can be life-threatening or critical. The impact of DOAC anticoagulation activity during a bleeding event must be evaluated according to patient clinical assessment, dosage and time from last intake, the presence of comorbidities (especially kidney and liver dysfunction), and, whenever possible, coagulation tests. Unfortunately, DOACs' anticoagulation activity is not easily or usually detectable in routine common coagulation testing. Specific DOAC tests allow for specific drug monitoring, but they are too time consuming, and are usually unavailable in routine emergency practice. If a clinically relevant DOAC plasma concentration is assumed or proven in a severe bleeding scenario, DOAC reversal is needed to restore hemostasis. This experts' consensus provides a narrative review about DOAC reversal and practical life-threatening bleeding management in several scenarios (trauma, intracranial hemorrhage and gastrointestinal bleeding), focusing on the selection of patients to whom specific reversal agents should be given.
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