scholarly journals Occupational Allergic Contact Dermatitis Caused by Epoxy Resin in the Centre of Portugal

2019 ◽  
Vol 77 (3) ◽  
pp. 221-225
Author(s):  
Mariana Ferreira Bastos ◽  
Ricardo Batista ◽  
Diogo Laertes ◽  
Joana Calvão ◽  
Margarida Gonçalo
Keyword(s):  
Contact Dermatitis ◽  
Epoxy Resin ◽  
Allergic Contact Dermatitis ◽  
Patch Test ◽  
Epoxy Resins ◽  
Occupational Exposures ◽  
Positive Patch Test ◽  
Test Reactions ◽  
Allergic Contact ◽  
The Impact

Introduction. Occupational Allergic Contact Dermatitis is a very common occupational disease and epoxy resins are among its main causes. The aim of this study was to characterize patients with positive patch test reactions to epoxy resin detected in the Coimbra Hospital and University Center between 2012 and 2018 and compare with the results of patients patch tested between 1999 and 2008 at the same Institution. Method and Materials.  Within aretrospective analysis of the files of patients with positive patch test reactions (1+ or more intense) to epoxy resin of bisfenol A tested at 1% pet. within the Baseline Series between 2012 and 2018, we characterized demographic and clinical data of reactive patients, evaluated the relevance of the reaction, sources of exposure to epoxy resin with particular attention to occupational exposures, other positive reactions and the impact of the results of the tests in the work conditions of these patients. Lastly, we compared these results with a previous study performed in the same Hospital between 1999 and 2008. Results. Among 2363 patch tested patients during the study period we found 23 patients (0.97%), 17 males and 6 females, who developed contact allergy to epoxy resins. In 22 cases we identified a relevant occupational exposure: 9 from construction industry; 9 workers from wind-mill turbines factory for Eolic energy; 2 from fiberglass factories; 1 from a chemical factory and 1 from a Wastewater Treatment Plant. In 1 patient (a teacher) no relevance was found. Of these 22 workers, 9 (39.1%) had both hand and airborne lesions, while 8 (34.8%) had lesions exclusively on the hands and 5 (21.7%) had predominately airborne dermatitis. Four of the 23 (17.4%) reacted exclusively to the epoxy resin, and 11 of 18 (61.1%) also reacted to 0.25% hexanediol diglycidyl ether. Avoidance resulted in a significant improvement of symptoms. Compared to the previous period (1999-2008), there are no significative changes apart from a slight increase in the frequency of the allergic reactions to epoxy resins and its main source of exposure. Conclusions. The prevalence of allergic contact dermatitis to epoxy resin has slightly increased in this Portuguese Center mostly due to workers from wind-mill turbines factory for Eolic energy, a recent industry implanted in this region. This allergen still causes almost exclusively occupational dermatitis, either hand, airborne, or both.

Polysensitization in Recurrent Lip Dermatitis

2015 ◽  
Vol 19 (1) ◽  
pp. 77-80 ◽  
Author(s):  
Kathleen Fraser ◽  
Melanie Pratt
Keyword(s):  
Case Report ◽  
Contact Dermatitis ◽  
Allergic Contact Dermatitis ◽  
Patch Test ◽  
Patch Testing ◽  
Clinical Relevance ◽  
Positive Patch Test ◽  
Test Reactions ◽  
Allergic Contact

Background: In allergic contact dermatitis (ACD), polysensitization consists of positive patch test reactions to three or more unrelated allergens. Objective: The purpose of this case report is to document a 27-year-old female with recurrent lip dermatitis, polysensitization, and reactions to a number of clinically relevant exposures. Methods: Patch testing results revealed positive reactions to tixocortol-21-pivalate (3+), lanolin (3+), neomycin (3+), nickel (1+), hydroxyethyl methylacrylate (3+), bacitracin (3+), and abitol (3+). Results: The patient had seven positive reactions, meeting the criteria for polysensitization. Of known clinical relevance, the patient had applied lanolin-containing lip balms and hydrocortisone- and bacitracin-containing products to the lips, all of which she was strongly reactive to on patch testing. Conclusion: Polysensitization occurs when three or more unrelated allergens are positive on patch testing. This case highlights the importance of considering polysensitization in ACD as numerous allergens that were positive on patch testing were clinically relevant.

Analysis of the Prevalence of Allergic Contact Dermatitis to Sunscreen: A Cohort Study

2014 ◽  
Vol 18 (1) ◽  
pp. 15-19 ◽  
Author(s):  
Katie Beleznay ◽  
Gillian de Gannes ◽  
Sunil Kalia
Keyword(s):  
Cohort Study ◽  
Contact Dermatitis ◽  
Adverse Effects ◽  
Allergic Contact Dermatitis ◽  
Patch Test ◽  
Positive Patch Test ◽  
Test Reactions ◽  
History Of ◽  
Allergic Contact ◽  
Test Database

Background: As the use of sunscreens becomes more prevalent, reports of adverse effects to sunscreens have increased. Objective: To analyze a patch test database for the prevalence of allergic contact dermatitis (ACD) to sunscreen. Methods: The database was searched for positive patch test reactions to benzophenone-3. Charts were also reviewed for those who were further tested to the sunscreen series. Results: Twenty-three of the 1,527 patients seen were tested to the sunscreen series. Of these, only 4 patients had a positive reaction to a sunscreen chemical or to the product they were using. In addition, 8 of the 1,527 patients who had no specific history of sunscreen allergy reacted to benzophenone-3. Conclusion: ACD to sunscreen was found to be very uncommon (0.8%). Other final diagnoses included ACD to excipients such as fragrances or preservatives and suspected photosensitive disorders.

Allergic contact dermatitis from 5-fluorouracil with positive intradermal test and doubtful patch test reactions

2007 ◽  
Vol 41 (2) ◽  
pp. 106-107 ◽  
Author(s):  
Javier Sánchez-Pérez ◽  
Beatriz Bartolomé ◽  
María Jesús Río ◽  
Amaro García-Díez
Keyword(s):  
Contact Dermatitis ◽  
Allergic Contact Dermatitis ◽  
Patch Test ◽  
Intradermal Test ◽  
Test Reactions ◽  
Allergic Contact

scholarly journals Occupational Allergic Contact Dermatitis in Wind Turbine Blades Production

2021 ◽  
Vol 79 (3) ◽  
pp. 217-220
Author(s):  
Diogo Laertes Correia ◽  
Jéssica Peres ◽  
Joana Calvão ◽  
Mariana Ferreira Bastos ◽  
Ricardo Silva ◽  
...  
Keyword(s):  
Contact Dermatitis ◽  
Wind Turbine ◽  
Epoxy Resin ◽  
Allergic Contact Dermatitis ◽  
Patch Test ◽  
Turbine Blades ◽  
Wind Turbine Blades ◽  
Hand Dermatitis ◽  
Allergic Contact ◽  
Airborne Dermatitis

Introduction: Epoxy resins, widely used in several industrial sectors, are among the main causes of allergic contact dermatitis. The wind turbine production industry is one of the sectors that uses these products widely. This study aimed to assess the prevalence of contact allergy to epoxy resin and its components among wind turbine blades production workers with suspected contact dermatitis. Methods: We performed a retrospective analysis of the patch test results performed between 2012 and 2019 in wind turbine blades production workers with dermatitis and characterized their demographic and clinical data, patch test results and the occupational impact of allergic contact dermatitis on these workers. Results: Out of the 3049 patients patch tested in the period 2012-2019, we identified thirteen wind turbine blades production workers, predominantly male (69.2%). All of them handled glues, resins and/or paints in their daily work activities. Seven (53.8%) had a combination of hand dermatitis and airborne dermatitis, two (15.4%) had exclusively hand dermatitis and four (30.8%) had predominantly airborne dermatitis. All patients had positive patch test for epoxy resin and ten patients (76.9%) had also reaction for 1,6-hexanediol diglycidylether. Two patients (15.4%) also had a reaction to the already hardened resin powder. Four (30.8%) patients had to quit their jobs due to allergic contact dermatitis and three (23.1%) were transferred to another workstation without exposure to epoxy resin. Avoidance of exposure resulted in a significant improvement. Conclusion: With this study, we confirmed that epoxy resin and its components are the main cause of dermatitis among wind turbine blades production workers, that eczema occurs by direct contact and by airborne exposure.

Contact Dermatitis to Personal Sporting Equipment in Youth

2015 ◽  
Vol 20 (4) ◽  
pp. 323-326 ◽  
Author(s):  
Barbara Marzario ◽  
Dianne Burrows ◽  
Sandy Skotnicki
Keyword(s):  
Contact Dermatitis ◽  
Allergic Contact Dermatitis ◽  
Patch Testing ◽  
Private Practice ◽  
Contact Allergy ◽  
Raw Material ◽  
Positive Patch Test ◽  
Test Reactions ◽  
Additional Value ◽  
Allergic Contact

Background: Contact dermatitis to personal sporting equipment in youth is poorly studied. Objective: To review the results of patch testing 6 youth to their sporting equipment in a dermatology general private practice from 2006 to 2011. Methods: A retrospective analysis of 6 youth aged 11 to 14 who were evaluated for chronic and persistent dermatitis occurring in relation to sports equipment was conducted. All patients were subjected to epicutaneous (patch) testing, which included some or all of the following: North American Contact Dermatitis Group (NACGD) series, textile series, rubber series, corticosteroid series, and raw material from the patients’ own personal equipment. Results: All cases had 1 or more positive patch test reactions to an allergen within the aforementioned series, and 3 subjects tested positive to their personal equipment in raw form. Conclusions: Allergic contact dermatitis, not irritant, was deemed the relevant cause of chronic dermatitis in 4 of the 6 patients due to positive reactions to epicutaneous tests and/or personal equipment. The utility of testing to patients’ own sporting equipment was shown to be of additional value and should be considered when patch testing for contact allergy to sporting equipment.

Atopy Associated With Positive Patch Test and Possible Allergic Contact Dermatitis

2018 ◽  
Vol 22 (4) ◽  
pp. 405-410 ◽  
Author(s):  
Mark G. Kirchhof ◽  
Gillian C. de Gannes
Keyword(s):  
Contact Dermatitis ◽  
Family History ◽  
Allergic Contact Dermatitis ◽  
Patch Test ◽  
Immunoglobulin E ◽  
Personal History ◽  
Positive Patch Test ◽  
Increased Risk ◽  
History Of ◽  
Allergic Contact

Background: Atopy is a genetic predisposition to the development of allergic reactions and the increased production of immunoglobulin E (IgE) upon exposure to environmental antigens. Clinical manifestations of atopy include asthma, atopic dermatitis (AD), and allergic rhinoconjunctivitis (ARC). Objective: To determine if cutaneous delayed hypersensitivity reactions (CDHRs) as assessed by patch testing are higher among patients with a history of atopy and with a familial predisposition to atopy. Methods: For this study, we reviewed the patch test database of the UBC Contact Dermatitis Clinic over a 4-year time span. A personal history of asthma, AD, and ARC was recorded. In addition, a family history was obtained and manifestations of atopy in family members were noted. Results: A total of 1515 patients were included in this study. Our data show that the odds ratio (OR) of a positive patch test with a personal history of atopy was 1.39, while the OR of a positive patch test with a family history of atopy was 1.69. Conversely, a personal history of respiratory atopy did not significantly affect the probability of a positive patch test, with an OR of 1.03. Conclusion: We conclude from our study that patients with a personal or family history of atopy have an increased risk of allergic contact dermatitis (ACD). These results provide further evidence for the link between atopy and ACD and suggest that children of atopic parents should avoid potential contact allergens and would likely benefit from prophylactic emollient use.

scholarly journals Results of patch tests (using Indian standard battery of allergens) in cement workers with clinically diagnosed allergic contact dermatitis to cement: A cross-sectional study

2021 ◽  
Vol 0 ◽  
pp. 1-5
Author(s):  
Thacharamban Mansoorali ◽  
Abdulsalam Sarin
Keyword(s):  
Contact Dermatitis ◽  
Allergic Contact Dermatitis ◽  
Patch Test ◽  
Positive Reaction ◽  
Patch Testing ◽  
Tertiary Referral ◽  
Test Reaction ◽  
Tertiary Referral Center ◽  
Positive Patch Test ◽  
Allergic Contact

Objectives: The objective of the study was to identify the allergens showing positive patch test reaction (using Indian standard battery of allergens) in cement workers with clinically diagnosed allergic contact dermatitis (CD) to cement attending a tertiary referral center. Materials and Methods: We included cement workers with clinically diagnosed allergic CD to cement who attended the dermatology outpatient clinic of our tertiary referral center from January 2013 to December 2013. We did patch testing in all the cases ( after subsidence of active dermatitis) with Indian standard battery of patch test allergens and documented the allergens that showed a positive reaction. Results: Forty-seven (94%) of the 50 study participants showed a positive reaction to one or more of the allergens. The most common allergen that showed a positive reaction was potassium dichromate (43/50, 86%). Twenty-five patients (50%) showed positive reactions to more than 1 allergen. Four patients (8%) showed positive reactions only to allergens that were not seen in cement. Limitations: Small sample size and lack of information on clinical response of dermatitis to avoidance of identified allergen were the major limitations. Conclusion: Twenty-five (50%) patients showing positive reactions to more than 1 allergen tested and 4 (8%) showing positive patch test reaction to none of the allergens in cement (but to other allergens) highlight the role of patch testing in identifying the probable allergens in patients with clinically diagnosed allergic CD to cement.

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