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Aspirin hypersensitivity: a practical guide for cardiologists
Silvia Grimaldi1, Paola Migliorini2, Ilaria Puxeddu2
1Postgraduate School of Cardiology, University of Pisa and Cardiovascular Division, Pisa University Hospital, Via Paradisa 2, 56124 Pisa, Italy.
Insights
Aspirin is crucial for cardiovascular disease prevention but hypersensitivity limits its use. This review explores aspirin hypersensitivity, its mechanisms, and management, including desensitization protocols.
Area of Science:
- Cardiology
- Immunology
- Pharmacology
Background:
- Aspirin is a cornerstone of antithrombotic therapy for cardiovascular disease.
- It is mandatory in dual antiplatelet therapy after percutaneous coronary intervention and for prosthetic valve replacement.
- Aspirin hypersensitivity affects 0.6%-2.5% of the population, presenting diverse clinical manifestations.
Purpose of the Study:
- To review the epidemiology, pathophysiology, and clinical presentations of aspirin hypersensitivity.
- To outline management options for patients with aspirin hypersensitivity.
- To differentiate true aspirin allergy from intolerance and discuss desensitization protocols.
Main Methods:
- Literature review of epidemiology, pathophysiology, clinical presentations, and management of aspirin hypersensitivity.
- Characterization of aspirin allergy versus intolerance.
- Discussion of desensitization protocols.
Main Results:
- Aspirin hypersensitivity presents with a wide range of symptoms, from respiratory issues to anaphylaxis.
- Distinguishing true allergy from intolerance is critical for appropriate management.
- Desensitization protocols offer a viable option for patients requiring aspirin therapy.
Conclusions:
- Aspirin hypersensitivity poses a significant clinical challenge in cardiovascular medicine.
- Accurate diagnosis and tailored management, including desensitization, are essential to avoid omitting this vital medication.
- Further research into pathophysiological mechanisms can refine treatment strategies.
Abstract:
Aspirin has been known for a long time and currently stays as a cornerstone of antithrombotic therapy in cardiovascular disease. In patients with either acute or chronic coronary syndromes undergoing percutaneous coronary intervention aspirin is mandatory in a dual antiplatelet therapy regimen for prevention of stent thrombosis and/or new ischaemic events. Aspirin is also currently a first-option antithrombotic therapy after an aortic prosthetic valve replacement and is occasionally required in addition to oral anticoagulants after implantation of a mechanical valve. Presumed or demonstrated aspirin hypersensitivity is a main clinical problem, limiting the use of a life-saving medication. In the general population, aspirin hypersensitivity has a prevalence of 0.6%-2.5% and has a plethora of clinical presentations, ranging from aspirin-exacerbated respiratory disease to anaphylaxis. Although infrequent, when encountered in clinical practice aspirin hypersensitivity poses for cardiologists a clinical dilemma, which should never be trivialized, avoiding-as much as possible-omission of the drug. We here review the epidemiology of aspirin hypersensitivity, provide an outline of pathophysiological mechanisms and clinical presentations, and review management options, starting from a characterization of true aspirin allergy-in contrast to intolerance-to suggestion of desensitization protocols.
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