Results of routine patch testing of 834 patients in Turin

Castiglioni, Gloria; Carosso, Aurelia; Manzoni, Samuele; Nebiolo, Franco; Bugiani, Massimiliano

doi:10.1111/j.1600-0536.1992.tb05249.x

Cited by 12 publications

(4 citation statements)

References 17 publications

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“…This study shows higher rates of PPD allergy than previous European reports. One such study gave a rate of PPD allergy as under 3% (8). The North American Contact Dermatitis Group reported a rate of 6.4% from 4055 individuals tested (9).…”

Section: Discussionmentioning

confidence: 99%

Patch test frequency to p‐phenylenediamine: follow up over the last 6 years

et al. 2006

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While the frequency of patch test reactivity to many cosmetic allergens has decreased over the last 20 years, we have previously shown that in our clinic, the patch test reactivity to p-phenylenediamine (PPD) has remained stubbornly high between 2.5% and 4.2% in the years when patch testing was performed with 1% PPD. Further retrospective analysis of the PPD patch test frequency over the last 6 years shows an increasing rate of PPD patch test frequency, showing an upward linear trend. This increasing trend cannot be fully explained by any increase in patch testing of Southern Asian patients or of sensitization caused by PPD exposure from 'temporary henna tattoos'. An alternative explanation may be the increasing use of permanent hair dyes.

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Section: Discussionmentioning

confidence: 99%

Patch test frequency to p‐phenylenediamine: follow up over the last 6 years

et al. 2006

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“…Senitization by PPD has, in the past, been considered so great a hazard that its use in hair dyes was banned in Germany, France and Sweden at varying times [5]. To date, most studies on PPD allergy are reported from populations of eczema patients attending a patch test clinic [6–8]. Such patients are screened with the ‘standard’ series of common contact allergens, which would include PPD.…”

Section: Introductionmentioning

confidence: 99%

A general population from Thailand: incidence of common allergens with emphasis on para‐phenylenediamine

White

Gilmour

Jeffries

et al. 2007

Clin Experimental Allergy

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“…12 Also other studies in the past have shown that nickel is the commonest metal causing sensitization among housewives. [13][14][15] Paraphenylenediamine is a very strong sensitizer and a common contact allergen in hair dyes. Pasricha has shown positive patch test with PPD in 42% cases and 40% with hair dyes.…”

Section: Discussionmentioning

confidence: 99%

A study of profile of contact dermatitis in housewives with reference to vegetables, soaps and detergents

et al. 2018

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Background: Contact dermatitis in housewives is a common dermatological problem as almost all housewives have to handle vegetables, fruits, soaps and detergents. The purpose of this project was to study etiologic profile of contact dermatitis occurring in housewives.Methods: One hundred housewives, clinically diagnosed as having contact dermatitis, were randomly selected for the study. Each patient was then subjected to patch testing using the Indian standard battery and certain indigenously prepared antigens i.e. vegetables, soaps and detergents. The first reading was taken 60 minutes with second reading at 96 hours. Reading equal to or more than 1+ was considered to be a positive test.Results: Majority patients were in the age group of 20-30 years. Morphological diagnosis was wear and tear dermatitis in 43%, discoid eczema (19%), fingertip eczema (16%), hyperkeratotic (15%) and pompholyx (7%). Nickel sulphate was found to be the commonest allergen (19%) followed by para-phenylenediamine (8%), fragnance mix (7%), Balsam of Peru (6%), parthenium (6%) and cobalt (5%). Amongst vegetables, the commonest culprit was garlic. Allergic reaction to detergents was positive in 13% patients. Forty-four percent of the cases tested positive to the suspected allergen whereas 31% patients tested positive for allergens not initially suspected of causing contact dermatitis in them.Conclusions: Thus patch testing is an important tool in establishing the cause of allergic contact dermatitis of the hands in housewives in whom the hand eczema is multifactorial. This enables the correct etiological diagnosis and proper management of housewives with hand dermatitis.

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Results of routine patch testing of 834 patients in Turin

Cited by 12 publications

References 17 publications

Patch test frequency to p‐phenylenediamine: follow up over the last 6 years

Patch test frequency to p‐phenylenediamine: follow up over the last 6 years

A general population from Thailand: incidence of common allergens with emphasis on para‐phenylenediamine

A study of profile of contact dermatitis in housewives with reference to vegetables, soaps and detergents

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