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Related Experiment Videos

[Allergy to local anesthetics].

T Ruzicka, M Gerstmeier, J Ring

    Zeitschrift Fur Hautkrankheiten
    |March 15, 1987
    PubMed
    Summary

    Patients with known allergies to local anesthetics can safely receive injection anesthesia. Intracutaneous testing revealed rare reactions, indicating low risk for allergic contact dermatitis patients undergoing procedures.

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    [Toxic epidermal necrolysis (drug-induced Lyell's syndrome). I. Clinical features and differential diagnosis].

    Deutsche medizinische Wochenschrift (1946)·2001

    Area of Science:

    • Allergy and Immunology
    • Dermatology
    • Pharmacology

    Context:

    • Patch testing for local anesthetics often shows positive results, but clinical relevance is unclear.
    • 104 patients with known contact allergies to local anesthetics were studied.
    • Previous research on the diagnostic accuracy of local anesthetic allergy testing is limited.

    Purpose:

    • To evaluate the diagnostic accuracy of prick and intracutaneous testing for local anesthetic allergy.
    • To determine the clinical relevance of positive patch tests in patients with suspected local anesthetic allergy.
    • To investigate the correlation between chemical structure and sensitizing potential of local anesthetics.

    Summary:

    • Prick testing for local anesthetic allergy consistently yielded negative results in patients with known allergies.
    • Intracutaneous testing showed rare immediate and delayed hypersensitivity reactions.
    • A correlation was observed between the chemical structure (amide vs. ester) and the sensitizing potential of local anesthetics, with amide-type anesthetics (except butanilicaine) rarely causing reactions.

    Impact:

    • Contact allergic patients can undergo injection local anesthesia with minimal risk of allergic reactions.
    • The route of administration significantly influences the manifestation of allergic reactions to local anesthetics.
    • Findings aid in refining diagnostic strategies and improving patient safety in local anesthesia administration.

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