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Case reports: type I hypersensitivity to lidocaine
Reshma Nair Haugen1, Clarence William Brown
1Department of Dermatology, Rush University Medical Center, Chicago, IL, USA.
Journal of Drugs in Dermatology : JDD
|January 15, 2008
Summary
Adverse reactions to lidocaine hydrochloride are rare, with true allergic reactions being exceptionally uncommon. This report details an extremely rare case of type I hypersensitivity to this widely used dermatologic anesthetic.
Area of Science:
- Dermatology
- Anesthesiology
- Allergy and Immunology
Background:
- Lidocaine hydrochloride is a cornerstone anesthetic in dermatological procedures.
- Adverse reactions to lidocaine are infrequent, with most being vasovagal or local.
- Immunologically mediated allergic reactions constitute a small fraction of reported side effects.
Observation:
- Immunologically mediated allergic reactions to lidocaine are estimated to comprise only 1% of all adverse events.
- This report documents an exceptionally rare case of a confirmed type I hypersensitivity reaction to lidocaine hydrochloride.
Findings:
- The presented case is an extremely rare instance of true type I hypersensitivity to lidocaine hydrochloride.
- This contrasts with the typical, less severe adverse reactions observed with lidocaine use.
Implications:
- Highlights the importance of considering rare allergic reactions even with commonly used medications.
- Emphasizes the need for vigilance in diagnosing and managing hypersensitivity to lidocaine in clinical practice.
- Contributes to the understanding of lidocaine"s immunogenic potential in specific patient populations.
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