Skin prick testing in patients using beta-blockers: a retrospective analysis.
1McMaster University, Hamilton, Ontario, Canada.
Summary
Beta-blocker use is a relative contraindication for allergen skin testing. This study found no adverse events in patients on beta-blockers undergoing skin prick tests, suggesting a favorable safety profile.
Area of Science:
- Allergy and Immunology
- Clinical Pharmacology
Background:
- Beta-blockers are considered a relative contraindication for allergen skin testing.
- Limited literature exists regarding adverse events during skin testing in patients using beta-blockers.
Purpose of the Study:
- To investigate the safety of allergen skin testing in patients currently taking beta-blocker medication.
- To identify any adverse effects associated with skin testing in this patient population.
Main Methods:
- Retrospective chart review of patients undergoing skin testing between 2004 and 2008 at a single allergy clinic.
- Data collected included beta-blocker use, skin test reactivity, type of test, asthma diagnosis, allergens tested, and adverse events.
Main Results:
- 191 patients on beta-blockers underwent skin testing.
- 72 patients exhibited positive skin test reactivity.
- No adverse events were recorded during the skin testing procedures.
Conclusions:
- Skin prick testing appears relatively safe for patients undergoing beta-blocker treatment.
- Larger prospective studies are recommended to further validate these safety findings.
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