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Related Experiment Videos

Dermatitis to captopril.

J C Martínez1, M J Fuentes, A Armentia

  • 1Department of Allergy, Hospital Río Hortega. Valladolid, Spain.

Allergologia Et Immunopathologia
|February 9, 2002
PubMed
Summary
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Delayed skin reactions to captopril are rare. This case study shows a positive patch test for captopril-induced cutaneous reactions, indicating specific sensitization.

Area of Science:

  • Dermatology
  • Pharmacology
  • Allergology

Background:

  • Cutaneous reactions to angiotensin-converting enzyme (ACE) inhibitors like captopril are infrequently reported.
  • The diagnostic utility of patch testing for ACE inhibitor-induced skin reactions remains underexplored.
  • This study investigates a case of captopril-induced cutaneous reaction and the role of patch testing.

Observation:

  • A patient presented with a delayed cutaneous reaction attributed to captopril.
  • Patch testing was conducted using captopril, other ACE inhibitors (enalapril, lisinopril, ramipril), and a standard series.
  • A positive reaction to captopril was observed after 4 days, while other tests remained negative.

Findings:

  • Allergological evaluations confirmed specific sensitization to captopril.

Related Experiment Videos

  • The patient demonstrated tolerance to enalapril and lisinopril.
  • Double-blind oral challenge tests were negative, supporting the patch test findings.

    • Implications:

    • Patch testing can be a valuable tool in diagnosing captopril-induced hypersensitivity.
    • The findings suggest a lack of cross-reactivity among certain ACE inhibitors in this patient.
    • Further research is needed to establish definitive patch test protocols for ACE inhibitor hypersensitivity.