Why the study?
Although dabigatran reduces the risk of fatal bleeding, it is associated with a higher risk of gastrointestinal bleeding, making its balanced clinical use challenging.
What are the mechanisms and risk factors for gastrointestinal bleeding associated with dabigatran?
What are the mechanisms and risk factors for gastrointestinal bleeding associated with dabigatran?
This review highlights that while dabigatran reduces fatal bleeding risks, it increases gastrointestinal bleeding risk, necessitating careful patient selection, dosing, and management of drug interactions.
Clinicians should assess GIB risk before prescribing dabigatran; review leaves optimal prevention strategies open.
Dabigatran, a reversible direct thrombin inhibitor, is widely used in clinical practice as a therapeutic option due to its unique mechanism of action in comparison to other anticoagulants. Although patients taking dabigatran experience a reduced risk of fatal bleeding, a higher risk of gastrointestinal bleeding (GIB) is associated with dabigatran, and its rational use between anticoagulation and bleeding is challenging for clinicians. To prevent GIB, it is imperative for clinicians to understand the pharmacological characteristics of dabigatran to ensure that its prescription should be avoided in patients with bleeding. In this review, we summarize the mechanism of action and pharmacokinetics of dabigatran and bleeding sites in the gastrointestinal tract in patients treated with dabigatran, as well as discuss the factors that increase the risk of dabigatran-induced GIB, including dose, age, drug interactions, race, genetics and past medical history. Finally, the treatment and prevention of GIB with dabigatran is also discussed. This review will help clinicians choose their drugs and doses more carefully for treating GIB.
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Niu et al. (2024) studied this question.
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