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Drug Toxicity: Allergic Reactions01:30

Drug Toxicity: Allergic Reactions

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Precision Implementation of Minimal Erythema Dose (MED) Testing to Assess Individual Variation in Human Inflammatory Response
06:31

Precision Implementation of Minimal Erythema Dose (MED) Testing to Assess Individual Variation in Human Inflammatory Response

Published on: October 3, 2019

Patch testing in non-immediate drug eruptions.

Antonino Romano1, Marinella Viola, Francesco Gaeta

  • 1Department of Internal Medicine and Geriatrics, Università Cattolica del Sacro Cuore (UCSC)-Allergy Unit, C,I, Columbus, Rome, Italy, and Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) Oasi Maria S,S, Troina, Italy. antoninoromano@h-columbus.it.

Allergy, Asthma, and Clinical Immunology : Official Journal of the Canadian Society of Allergy and Clinical Immunology
|June 8, 2010
PubMed
Summary
This summary is machine-generated.

This review evaluates diagnostic methods for non-immediate hypersensitivity drug reactions. Patch tests, intradermal tests, and lymphocyte transformation tests are key for diagnosing delayed drug eruptions.

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Minimal Erythema Dose (MED) Testing
06:24

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Published on: May 28, 2013

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Precision Implementation of Minimal Erythema Dose (MED) Testing to Assess Individual Variation in Human Inflammatory Response
06:31

Precision Implementation of Minimal Erythema Dose (MED) Testing to Assess Individual Variation in Human Inflammatory Response

Published on: October 3, 2019

Minimal Erythema Dose (MED) Testing
06:24

Minimal Erythema Dose (MED) Testing

Published on: May 28, 2013

Area of Science:

  • Immunology
  • Dermatology
  • Pharmacology

Background:

  • Non-immediate hypersensitivity reactions occur >1 hour after drug administration.
  • Reactions range from maculopapular rash to severe Stevens-Johnson syndrome (SJS) and toxic epidermal necrolysis (TEN).
  • Cell-mediated immunity often underlies these delayed drug eruptions.

Purpose of the Study:

  • To review the sensitivity and specificity of diagnostic methods for non-immediate hypersensitivity drug reactions.
  • To assess diagnostic tools for various delayed drug eruptions, including maculopapular rash, urticaria, AGEP, SJS, and TEN.
  • To compare the utility of patch tests, intradermal tests, and lymphocyte transformation tests.

Main Methods:

  • Literature review of diagnostic methods for non-immediate drug hypersensitivity.
  • Analysis of studies on patch testing, delayed-reading intradermal testing, lymphocyte transformation tests, and drug challenges.
  • Evaluation of diagnostic accuracy for reactions to antibiotics, anticonvulsants, heparins, and iodinated contrast media.

Main Results:

  • Cell-mediated mechanisms are implicated in maculopapular rashes and other non-immediate reactions like AGEP, SJS, and TEN.
  • Patch tests, delayed-reading intradermal tests, lymphocyte transformation tests, and challenges are valuable diagnostic tools.
  • Patch tests are safer than intradermal tests but may be less sensitive, with variability based on the vehicle used.

Conclusions:

  • Diagnostic tests are crucial for identifying the cause of non-immediate hypersensitivity drug reactions.
  • A combination of diagnostic approaches, including patch testing and immunological assays, can improve diagnostic accuracy.
  • Further research may refine the sensitivity and specificity of these diagnostic methods for delayed drug hypersensitivity.