IgE-mediated anaphylactoid reactions to rubber.

Area of Science:

• Immunology
• Allergy
• Dermatology

Background:

• Delayed hypersensitivity to rubber chemicals is documented.
• Immediate hypersensitivity causing contact urticaria from rubber is less common.
• Natural rubber latex (NRL) allergy is a growing concern in healthcare settings.

Observation:

• Several patients presented with contact urticaria from NRL gloves.
• These patients showed positive skin prick tests and RAST tests to NRL.
• Five patients experienced systemic reactions, including anaphylaxis.

Findings:

• Sensitization to NRL can lead to immediate hypersensitivity reactions.
• Positive allergy tests confirm IgE-mediated responses to NRL.
• Systemic reactions indicate a risk of anaphylaxis from NRL exposure.

Implications:

• Healthcare professionals and patients must be aware of NRL allergy risks.
• Early diagnosis and avoidance of NRL are crucial for preventing severe reactions.
• The prevalence of IgE-mediated allergy to NRL may be significantly underestimated.