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Published on: January 18, 2017
Aspirin resistance
K A Ashwin1, K L Bairy, Sudha Vidyasagar
1Department of Pharmacology, Kasturba Medical College, Manipal 576 104.
Aspirin significantly lowers the risk of vascular events and death in high-risk patients. Understanding and addressing aspirin resistance factors is key to optimizing its effectiveness in preventing atherothrombotic disease.
Area of Science:
- Cardiology
- Pharmacology
- Vascular Medicine
Background:
- Aspirin is a cornerstone in preventing atherothrombotic vascular events.
- Aspirin resistance, defined by lack of pharmacologic effect or clinical failure, poses a challenge.
- Factors contributing to aspirin resistance include genetics, adherence, dosing, comorbidities, and drug interactions.
Purpose of the Study:
- To review the concept and causes of aspirin resistance.
- To discuss methods for assessing aspirin's effects on platelets.
- To provide guidance on optimizing aspirin therapy for secondary prevention.
Main Methods:
- Literature review on aspirin resistance and its management.
- Analysis of factors influencing aspirin efficacy.
- Evaluation of diagnostic methods for aspirin response.
Main Results:
- Aspirin reduces serious atherothrombotic events and death by approximately 25% in high-risk populations.
- Multiple factors contribute to aspirin resistance, impacting treatment outcomes.
- Despite resistance, aspirin remains highly cost-effective for secondary prevention.
Conclusions:
- Clinicians must recognize and manage causes of aspirin treatment failure.
- Optimizing aspirin use involves appropriate dosing and patient adherence.
- Lifestyle modifications, including smoking cessation and NSAID avoidance, are crucial alongside aspirin therapy.
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