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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.
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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