Abstract
Background: Current evaluation of suspected allergic contact dermatitis to lanolin includes patch testing to lanolin alcohol (30% in petrolatum). Using this method, the prevalence of lanolin allergy is low (1.8%-2.5%). Objective: The objective of this study was to determine whether patch testing to a single lanolin derivative results in underdiagnosis compared with patch testing to 12 lanolin derivatives. Methods: Patients were prospectively patch tested to (1) lanolin alcohol (30% in petrolatum) in our standard allergen series; (2) Amerchol L101 (50% in petrolatum) in our cosmetic series; and (3) 10 lanolin derivatives (using concentrations and vehicles recommended in the literature) in a supplemental series. Results: Of 286 patients, the overall prevalence of positive reactions to lanolin in at least 1 of the 3 patch test series was 6.29% (95% confidence interval [CI], 3.48%-9.11%) (n = 18). The prevalence rates of lanolin allergy using the standard, cosmetic, and supplemental series were 1.05% (95% CI, 0%-2.23%), 3.85% (95% CI, 1.62%-6.07%), and 3.85% (95% CI, 1.62%-6.07%), respectively. Amerchol L101 was associated with increased reaction rates compared with the standard (odds ratio, 3.81; P = 0.007) and supplemental (odds ratio, 8.85; P G 0.001) series, whereas reaction rates were similar for the standard and supplemental series (P = 0.78). Conclusions: Amerchol L101 and patients' own products should be added to a standard patch testing allergen series to adequately identify lanolin allergy.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 119-123 |
| Number of pages | 5 |
| Journal | Dermatitis |
| Volume | 24 |
| Issue number | 3 |
| DOIs | |
| State | Published - May 2013 |
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ASJC Scopus subject areas
- Dermatology
- Immunology and Allergy
Cite this
Diagnosis and prevalence of lanolin allergy. / Miest, Rachel Y N; Yiannias, James A.; Chang, Yu Hui H; Singh, Nidhi.
In: Dermatitis, Vol. 24, No. 3, 05.2013, p. 119-123.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Diagnosis and prevalence of lanolin allergy
AU - Miest, Rachel Y N
AU - Yiannias, James A.
AU - Chang, Yu Hui H
AU - Singh, Nidhi
PY - 2013/5
Y1 - 2013/5
N2 - Background: Current evaluation of suspected allergic contact dermatitis to lanolin includes patch testing to lanolin alcohol (30% in petrolatum). Using this method, the prevalence of lanolin allergy is low (1.8%-2.5%). Objective: The objective of this study was to determine whether patch testing to a single lanolin derivative results in underdiagnosis compared with patch testing to 12 lanolin derivatives. Methods: Patients were prospectively patch tested to (1) lanolin alcohol (30% in petrolatum) in our standard allergen series; (2) Amerchol L101 (50% in petrolatum) in our cosmetic series; and (3) 10 lanolin derivatives (using concentrations and vehicles recommended in the literature) in a supplemental series. Results: Of 286 patients, the overall prevalence of positive reactions to lanolin in at least 1 of the 3 patch test series was 6.29% (95% confidence interval [CI], 3.48%-9.11%) (n = 18). The prevalence rates of lanolin allergy using the standard, cosmetic, and supplemental series were 1.05% (95% CI, 0%-2.23%), 3.85% (95% CI, 1.62%-6.07%), and 3.85% (95% CI, 1.62%-6.07%), respectively. Amerchol L101 was associated with increased reaction rates compared with the standard (odds ratio, 3.81; P = 0.007) and supplemental (odds ratio, 8.85; P G 0.001) series, whereas reaction rates were similar for the standard and supplemental series (P = 0.78). Conclusions: Amerchol L101 and patients' own products should be added to a standard patch testing allergen series to adequately identify lanolin allergy.
AB - Background: Current evaluation of suspected allergic contact dermatitis to lanolin includes patch testing to lanolin alcohol (30% in petrolatum). Using this method, the prevalence of lanolin allergy is low (1.8%-2.5%). Objective: The objective of this study was to determine whether patch testing to a single lanolin derivative results in underdiagnosis compared with patch testing to 12 lanolin derivatives. Methods: Patients were prospectively patch tested to (1) lanolin alcohol (30% in petrolatum) in our standard allergen series; (2) Amerchol L101 (50% in petrolatum) in our cosmetic series; and (3) 10 lanolin derivatives (using concentrations and vehicles recommended in the literature) in a supplemental series. Results: Of 286 patients, the overall prevalence of positive reactions to lanolin in at least 1 of the 3 patch test series was 6.29% (95% confidence interval [CI], 3.48%-9.11%) (n = 18). The prevalence rates of lanolin allergy using the standard, cosmetic, and supplemental series were 1.05% (95% CI, 0%-2.23%), 3.85% (95% CI, 1.62%-6.07%), and 3.85% (95% CI, 1.62%-6.07%), respectively. Amerchol L101 was associated with increased reaction rates compared with the standard (odds ratio, 3.81; P = 0.007) and supplemental (odds ratio, 8.85; P G 0.001) series, whereas reaction rates were similar for the standard and supplemental series (P = 0.78). Conclusions: Amerchol L101 and patients' own products should be added to a standard patch testing allergen series to adequately identify lanolin allergy.
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UR - http://www.scopus.com/inward/citedby.url?scp=84881361876&partnerID=8YFLogxK
U2 - 10.1097/DER.0b013e3182937aa4
DO - 10.1097/DER.0b013e3182937aa4
M3 - Article
C2 - 23665833
AN - SCOPUS:84881361876
VL - 24
SP - 119
EP - 123
JO - Dermatitis
JF - Dermatitis
SN - 1710-3568
IS - 3
ER -