Related Experiment Videos
Evaluating a dental patient for local anesthesia allergy
Ronald S Brown1, Srinagesh Paluvoi, Soli Choksi
1Department of Oral and Maxillofacial Pathology, Department of Oral Diagnosis and Radiology, Howard University College of Dentistry, Washington, DC, USA.
Compendium of Continuing Education in Dentistry (Jamesburg, N.J. : 1995)
|March 28, 2002
Summary
Identifying specific local anesthetic allergens in dentistry is challenging. A patient experienced delayed allergic reactions to commercial dental anesthetics, with the exact allergen remaining unidentified.
Area of Science:
- Allergy and Immunology
- Clinical Dentistry
- Dermatology
Background:
- Determining specific allergens in local anesthetics can be clinically difficult.
- Delayed hypersensitivity reactions pose diagnostic challenges in dental patients.
Observation:
- A 76-year-old male patient developed skin rashes and pruritus 36 hours post-treatment after multiple dental procedures using various local anesthetics.
- Challenge procedures indicated a delayed hypersensitivity reaction to a commercial local anesthetic formulation, but not to cardiac lidocaine.
Findings:
- The patient exhibited a positive delayed hypersensitivity reaction to a commercial local anesthetic.
- Cardiac lidocaine did not elicit a reaction, suggesting the allergen was not lidocaine itself.
- A latex allergy was suspected but not confirmed due to the patient declining further testing.
Implications:
- This case highlights the diagnostic difficulties in identifying unknown allergens in commercial local anesthetic formulations.
- Further investigation into anesthetic additives may be necessary to prevent adverse reactions.
- Clinicians should consider delayed hypersensitivity reactions when evaluating persistent post-procedural symptoms.