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Prospective study of patch testing in patients with vulval pruritus
Emma Haverhoek1, Catherine Reid, Lynne Gordon
1Flinders Medical Centre and Royal Adelaide Hospital, Adelaide, South Australia, Australia. e_storer@hotmail.com
The Australasian Journal of Dermatology
|April 17, 2008
Summary
Contact allergy is common in vulval pruritus patients, with 81.4% showing sensitivity. Many allergens were outside standard tests, indicating a need for expanded patch testing for accurate diagnosis.
Area of Science:
- Dermatology
- Allergology
Background:
- Vulval pruritus is a common dermatological complaint.
- Contact sensitivity is a potential underlying cause.
Purpose of the Study:
- To investigate the prevalence of contact sensitivity in patients with vulval pruritus.
- To identify allergens and predictors of contact allergy in this population.
Main Methods:
- Prospective patch-testing study involving 43 patients with vulval pruritus.
- Utilized an extended battery of allergens, including standard series, preservatives, corticosteroids, and common topical treatments.
- Collected demographic data, treatment history, and pruritus severity.
Main Results:
- High rate of contact sensitivity detected (81.4% of patients).
- Clinically relevant allergens identified in 44% of subjects.
- Predictors of allergy included biopsy-proven vulval dermatitis, multiple topical treatments, sexual inactivity, and severe pruritus.
- Many identified allergens were not part of the standard European series.
Conclusions:
- Contact sensitivity is a significant factor in vulval pruritus.
- An extended allergen series is crucial for comprehensive patch testing in these patients.
- Identifying specific allergens can guide targeted treatment and management strategies.
