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Antithrombotic therapy for long-term secondary prevention of acute coronary syndrome in high-risk patients
1Department of Biomedicine, Centre for Clinical Pharmacology, Aarhus, Denmark ; Department of Medicine, Hospital Unit West, Herning, Denmark.
Insights
Patients with acute coronary syndrome (ACS) face a high risk of recurrent events despite current therapies. This review examines long-term antithrombotic strategies, identifies high-risk groups, and suggests improvements for secondary prevention.
Area of Science:
- Cardiology
- Pharmacology
- Clinical Medicine
Background:
- Acute coronary syndrome (ACS) poses a significant clinical challenge due to high rates of recurrent ischemic events.
- Current acute management involves parenteral anticoagulants and dual-antiplatelet therapy, with dual-antiplatelet therapy also recommended for long-term secondary prevention.
- Despite advancements, ACS patients have a substantial risk (around 10%) of experiencing another event within 12-15 months.
Purpose of the Study:
- To review the current standard of care for long-term secondary antithrombotic strategies in ACS patients.
- To identify high-risk patient populations for recurrent ACS events using registry data.
- To summarize recent Phase III trial data on antiplatelet and anticoagulant therapies to inform treatment strategies.
Main Methods:
- Review of current standard of care for ACS management.
- Analysis of data from GRACE and CRUSADE registries to identify high-risk patient groups.
- Summary of recent Phase III clinical trial data for antiplatelet and anticoagulant agents.
Main Results:
- Certain patient groups, including the elderly and those with renal impairment or heart failure, are at higher risk for recurrent ACS.
- Evidence suggests underuse of guideline-recommended therapies in these high-risk ACS populations.
- Phase III trials provide insights into differential benefits of specific long-term antithrombotic strategies across patient subgroups.
Conclusions:
- Optimizing long-term secondary prevention strategies is crucial for improving prognosis in ACS patients.
- Targeted application of evidence-based antithrombotic therapies in high-risk populations is needed.
- Improved implementation of guideline recommendations can enhance patient outcomes after an ACS event.
Abstract:
Patients with acute coronary syndrome (ACS) represent a major clinical burden, because they tend to experience recurrent ischemic events. Acute management of patients with ACS includes combination antithrombotic therapy composed of a parenteral anticoagulant and dual-antiplatelet therapy. Dual-antiplatelet therapy is also recommended for long-term secondary prevention of ACS. Despite advances in the antithrombotic therapies available, clinical trials suggest that patients with ACS still faceã10% risk of another event within 12-15 months of the index event. Certain patient populations, such as elderly patients and those with renal impairment or heart failure, are at higher risk of recurrent ACS events, because these patients have more vascular ischemic and bleeding risk factors than most other patients. Evidence from the GRACE and CRUSADE registries suggests underuse of the guideline-recommended evidence-based therapies for the management of ACS in such patients. This review summarizes the current standard of care for patients with ACS, focusing on long-term secondary antithrombotic strategies. Registry data are used to identify high-risk patient populations; the recent antiplatelet and anticoagulant Phase III trial data are summarized to highlight any patient populations who receive greater or lesser benefit from specific long-term antithrombotic strategies. Guideline recommendations are discussed and suggestions are provided to help improve implementation of long-term secondary prevention strategies and patient prognosis after an ACS event.
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