Aspirin desensitization: Difference between revisions
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===History=== | ===History=== | ||
While aspirin is often the culprit, the reaction can also be induced by cross reaction with cycloxygenase 1 inhibitors ([[COX 1]]) such as ibuprofin (Motrin) and naproxen <ref name="pmid15613671">{{cite journal |author=Gollapudi RR, Teirstein PS, Stevenson DD, Simon RA |title=Aspirin sensitivity: implications for patients with coronary artery disease |journal=[[JAMA : the Journal of the American Medical Association]] |volume=292 |issue=24 |pages=3017–23 |year=2004 |month=December |pmid=15613671 |doi=10.1001/jama.292.24.3017 |url=http://jama.ama-assn.org/cgi/pmidlookup?view=long&pmid=15613671 |issn= |accessdate=2010-07-01}}</ref>. | While aspirin is often the culprit, the reaction can also be induced by cross reaction with cycloxygenase 1 inhibitors ([[COX 1]]) such as ibuprofin (Motrin) and naproxen <ref name="pmid15613671">{{cite journal |author=Gollapudi RR, Teirstein PS, Stevenson DD, Simon RA |title=Aspirin sensitivity: implications for patients with coronary artery disease |journal=[[JAMA : the Journal of the American Medical Association]] |volume=292 |issue=24 |pages=3017–23 |year=2004 |month=December |pmid=15613671 |doi=10.1001/jama.292.24.3017 |url=http://jama.ama-assn.org/cgi/pmidlookup?view=long&pmid=15613671 |issn= |accessdate=2010-07-01}}</ref>. There is also cross reactivity in patients who take acetaminophen (a weak COX 1 inhbitor), and these patients should not take more than 1000 mg as a single dose<ref name="pmid17609236">{{cite journal |author=Knowles SR, Drucker AM, Weber EA, Shear NH |title=Management options for patients with aspirin and nonsteroidal antiinflammatory drug sensitivity |journal=[[The Annals of Pharmacotherapy]] |volume=41 |issue=7 |pages=1191–200 |year=2007 |month=July |pmid=17609236 |doi=10.1345/aph.1K023 |url=http://www.theannals.com/cgi/pmidlookup?view=long&pmid=17609236 |issn= |accessdate=2010-07-01}}</ref>. Even 4% of patients with aspirin hypersensitivity will cross-react and sustain a cutaneous reaction to COX-2 selective NSAID <ref name="pmid17609236">{{cite journal |author=Knowles SR, Drucker AM, Weber EA, Shear NH |title=Management options for patients with aspirin and nonsteroidal antiinflammatory drug sensitivity |journal=[[The Annals of Pharmacotherapy]] |volume=41 |issue=7 |pages=1191–200 |year=2007 |month=July |pmid=17609236 |doi=10.1345/aph.1K023 |url=http://www.theannals.com/cgi/pmidlookup?view=long&pmid=17609236 |issn= |accessdate=2010-07-01}}</ref>. | ||
==Mechanism of Aspirin Desensitization== | ==Mechanism of Aspirin Desensitization== | ||
Revision as of 18:04, 1 July 2010
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Overview
Approximately 10% of patients will develop a hypersensitivity reaction to aspirin. Dual antiplatelet therapy with both aspirin and clopidogrel has been associated with improved clinical outcomes in the management of patients with acute coronary syndromes. Although there is a lack of supporting data, patients with aspirin hypersensitivity are sometimes managed with clopidogrel monotherapy. Aspirin desensitization is required when continued aspirin administration is essential (e.g. management of an acute coronary syndrome with stent placement). A rapid protocol can be used as described below. [1]. While this protocol can be implemented over the course of several hours, it is not applicable to those patients who must proceed to the cardiac catheterization laboratory such as the patient with ST segment elevation myocardial infarction where "time is muscle"[2].
Epidemiology and Demographics
In one single center study, among 26 of 1,014 patients admitted for cardiac catheterization had a history of aspirin sensitivity. Of these 26 patients, 61.5% presented with an acute coronary syndrome. While many patients could be desensitized, those with ST elevation MI could not be sensitized before the procedure[2].
Diagnosis
Signs and Symptoms
The signs and symptoms of hypersensitivity include rhinorrhea, exacerbation of asthma, urticaria, angioedema, and anaphylaxis. The majority of patients develop asthma, asthma exacerbation or rhinitis. [3]
History
While aspirin is often the culprit, the reaction can also be induced by cross reaction with cycloxygenase 1 inhibitors (COX 1) such as ibuprofin (Motrin) and naproxen [3]. There is also cross reactivity in patients who take acetaminophen (a weak COX 1 inhbitor), and these patients should not take more than 1000 mg as a single dose[4]. Even 4% of patients with aspirin hypersensitivity will cross-react and sustain a cutaneous reaction to COX-2 selective NSAID [4].
Mechanism of Aspirin Desensitization
The pathophysiology aspirin hypersensitivity involves both excess leukotriene producation as well as the development of IgE antibodies directed toward aspirin. The goal of a desensitization protocol is to deplete the leukotrienes (as well as other mediators) and to down-regulate the leukotriene receptors.
Protocol for Aspirin Desensitization:
The dose of aspirin is increased every 15 minutes until the maximum dose of aspirin is administered:
Dose
0 minutes: 0.1 mg
15 minutes: 0.3 mg
30 minutes: 1 mg
45 minutes: 3 mg
60 minutes: 10 mg
75 minutes: 20 mg
90 minutes: 40 mg
105 minutes: 81 mg
120 minutes: 162 mg
135 minutes: 325 mg
Success of Aspirin Desensitization
Data regarding the success of aspirin desensitization is based upon small observational studies. Patients with chronic idiopathic urticaria often cannot be desensitized [3]. In one single center experience, 23/26 patients (88.5%) could be desensitized[2].
Resensitization as a Complication of Aspirin Desensitization
If patients are not treated with aspirin chronically after desensitization, they can develop resensitization. A 300 mg daily dose of aspirin was superior to a 100 mg daily dose in preventing resensitization [5].
The Cost-Effectiveness of Aspirin Desensitization
Aspirin desensitization is much more cost effective than clopidogrel monotherapy. Clopidogrel was associated with a cost $106,453 per incremental Quality Adjusted Life Year saved when compared with aspirin desensitization[6].
References
- ↑ Page NA, Schroeder WS (2007). "Rapid desensitization protocols for patients with cardiovascular disease and aspirin hypersensitivity in an era of dual antiplatelet therapy". The Annals of Pharmacotherapy. 41 (1): 61–7. doi:10.1345/aph.1H437. PMID 17200429. Retrieved 2010-07-01. Unknown parameter
|month=ignored (help) - ↑ 2.0 2.1 2.2 Rossini R, Angiolillo DJ, Musumeci G, Scuri P, Invernizzi P, Bass TA, Mihalcsik L, Gavazzi A (2008). "Aspirin desensitization in patients undergoing percutaneous coronary interventions with stent implantation". The American Journal of Cardiology. 101 (6): 786–9. doi:10.1016/j.amjcard.2007.10.045. PMID 18328841. Retrieved 2010-07-01. Unknown parameter
|month=ignored (help) - ↑ 3.0 3.1 3.2 Gollapudi RR, Teirstein PS, Stevenson DD, Simon RA (2004). "Aspirin sensitivity: implications for patients with coronary artery disease". JAMA : the Journal of the American Medical Association. 292 (24): 3017–23. doi:10.1001/jama.292.24.3017. PMID 15613671. Retrieved 2010-07-01. Unknown parameter
|month=ignored (help) - ↑ 4.0 4.1 Knowles SR, Drucker AM, Weber EA, Shear NH (2007). "Management options for patients with aspirin and nonsteroidal antiinflammatory drug sensitivity". The Annals of Pharmacotherapy. 41 (7): 1191–200. doi:10.1345/aph.1K023. PMID 17609236. Retrieved 2010-07-01. Unknown parameter
|month=ignored (help) - ↑ Rozsasi A, Polzehl D, Deutschle T, Smith E, Wiesmiller K, Riechelmann H, Keck T (2008). "Long-term treatment with aspirin desensitization: a prospective clinical trial comparing 100 and 300 mg aspirin daily". Allergy. 63 (9): 1228–34. doi:10.1111/j.1398-9995.2008.01658.x. PMID 18699939. Retrieved 2010-07-01. Unknown parameter
|month=ignored (help) - ↑ Shaker M, Lobb A, Jenkins P, O'Rourke D, Takemoto SK, Sheth S, Burroughs T, Dykewicz MS (2008). "An economic analysis of aspirin desensitization in aspirin-exacerbated respiratory disease". The Journal of Allergy and Clinical Immunology. 121 (1): 81–7. doi:10.1016/j.jaci.2007.06.047. PMID 17716716. Retrieved 2010-07-01. Unknown parameter
|month=ignored (help)