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Published on: February 28, 2012
Anticoagulant-associated gastrointestinal bleeding: Framework for decisions about whether, when and how to resume
Yan Xu1, Deborah M Siegal1,2
1Department of Medicine, University of Ottawa, Ottawa, Ontario, Canada.
Insights
Oral anticoagulant (OAC)-associated gastrointestinal bleeding poses significant risks. This review offers a framework for deciding when to resume OACs after bleeding, balancing thrombosis and re-bleeding risks.
Area of Science:
- Internal Medicine
- Cardiology
- Gastroenterology
Background:
- Gastrointestinal (GI) bleeding is the most common major bleeding complication associated with oral anticoagulants (OACs).
- Patients experiencing major GI bleeding face significant morbidity and up to 10% short-term mortality.
- Uncertainty exists regarding the optimal strategy for resuming OACs after bleeding resolution.
Purpose of the Study:
- To provide a decision-making framework for OAC resumption after GI bleeding.
- To summarize the epidemiology and clinical outcomes of OAC-associated GI bleeding.
- To outline strategies for preventing recurrent GI bleeding.
Main Methods:
- Review of existing literature on OAC-associated GI bleeding.
- Analysis of observational studies on OAC resumption risks (thromboembolism, recurrent bleeding).
- Development of an approach for risk stratification and timing of OAC resumption.
Main Results:
- Limited evidence suggests OAC resumption may lower thromboembolism risk but increase recurrent bleeding risk.
- Absolute risks and optimal timing for OAC resumption remain unclear due to study limitations and confounding.
- Individualized patient assessment, incorporating values and preferences, is crucial.
Conclusions:
- A structured approach is needed to guide OAC resumption after GI bleeding.
- Balancing the risks of recurrent thrombosis against re-bleeding is essential.
- Personalized decision-making, informed by evidence and patient preferences, should guide therapy.
Abstract:
Gastrointestinal (GI) bleeding is the most frequent single site of oral anticoagulant (OAC)-associated major bleeding. Patients with major GI bleeding experience morbidity and a substantial risk of short-term all-cause mortality up to 10%. While OACs are frequently discontinued during acute bleeding, there is substantial uncertainty about whether, when, and how OACs should be resumed after bleeding has resolved. Limited evidence suggests a lower risk of thromboembolism and death, and a higher risk of recurrent bleeding with OAC resumption. However, the absolute risks and optimal timing of anticoagulation remain uncertain based on these observational studies at risk of bias, particularly due to baseline confounding. In addition to an individualized approach to determining the benefits and harms of treatment decisions informed by the best available evidence about thrombosis and recurrent bleeding, discussions should meaningfully incorporate patient values and preferences. The objective of this review is to provide a framework for decision-making by summarizing the epidemiology and clinical outcomes of OAC-associated GI bleeding, providing an approach for assessment and risk stratification for OAC resumption and its timing, and outlining strategies for the prevention of recurrent GI bleeding.
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