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The American Contact Dermatitis Society recognizes the interest in the evaluation and management of metal hypersensitivity reactions. Given the paucity of robust evidence with which to guide our practices, we provide reasonable evidence and expert opinion-based guidelines for clinicians with regard to metal hypersensitivity reaction testing and patient management. Routine preoperative evaluation in individuals with no history of adverse cutaneous reactions to metals or history of previous implant-related adverse events is not necessary. Patients with a clear self-reported history of metal reactions should be evaluated by patch testing before device implant. Patch testing is only 1 element in the assessment of causation in those with postimplantation morbidity. Metal exposure from the implanted device can cause sensitization, but a positive metal test does not prove symptom causality. The decision to replace an implanted device must include an assessment of all clinical factors and a thorough risk-benefit analysis by the treating physician(s) and patient.

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Dermatitis has important implications for individuals who are affected. It can significantly impair function and quality of life. Dermatitis is multi-factorial and often includes elements of atopic dermatitis, allergic contact dermatitis, and irritant contact dermatitis in a co-existent manner. Textiles are in contact with the human skin for extended periods of time and as a result, they are an important part of the cutaneous environment. Thus, it is not surprising that textiles play a major role in both the etiology and the treatment of various types of dermatitis. This review discusses the role of textiles in dermatitis with an emphasis on interesting and recent advances, trends, perspectives, gaps, and conflicts in the field. In addition, we mention other disease processes to be aware of as they can often mimic textile pattern dermatitis. Lastly, we provide a diagnostic approach for patients presenting with textile pattern dermatitis.

Background Irritant hand dermatitis (IHD) is common in healthcare workers. Objective We studied endogenous irritant contact dermatitis threshold by patch testing, and exogenous factors such as season and hand washing for their association with IHD in healthcare workers. Methods Irritant patch testing with sodium lauryl sulfate (SLS), sodium hydroxide (NaOH) and benzalkonium chloride (BAK) at varying concentrations was measured in 113 healthcare workers. Examination for hand dermatitis occurred at one month intervals for a period of six months in the Midwestern US. Results Positive patch testing to low concentration SLS was associated with IHD (p=0.0310) after adjusting for age, gender, ethnicity, season, history of childhood flexural dermatitis, mean indoor relative humidity, glove and hand sanitizer usage). Subjects with a positive patch test to SLS were 78% more likely to have occurrence of IHD (IRR=1.78, 95% CI: 0.92, 3.45). Hand washing frequency (≥ 10 times a day; IRR=1.55, 95% CI: 1.01, 2.39) and cold season (IRR=2.76, 95% CI: 1.35, 5.65) were associated with IHD. No association was found between history of childhood flexural dermatitis and IHD in this population. Conclusions Both genetic and environmental factors are important in the etiology of IHD and should be considered in designing strategies to protect, educate and treat susceptible individuals.

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