Contact sensitization to fragrance mix I and fragrance mix II among European dermatitis patients: A systematic review.

BACKGROUND: Fragrance substances are a frequent cause of contact allergy worldwide. Fragrance exposure varies by sex, age and possibly country, influenced by cosmetic availability, environmental conditions and cultural practices. OBJECTIVES: To systematically review and gather prevalence of sensitization to fragrance mix I (FM I) and fragrance mix II (FM II) in consecutively patch-tested European dermatitis patients. METHOD: A total of 4134 publications on patch test results of European dermatitis patients, published from 1981 to 2022, were systematically reviewed according to a previously registered and published PROSPERO protocol. RESULTS: Eighty-four eligible original articles were analysed. Overall prevalence of sensitization to fragrance mix I (FM I) was 6.81% (95% CI: 6.37-7.28), and FM II was 3.64% (95% CI: 3.3-4.01). Sensitization to FM I was most prevalent in Central and Eastern Europe and to FM II in Western Europe. No clear time trends were observed. Among paediatric dermatitis patients, sensitization prevalence for FM I and FM II was 4.09% (95% CI: 3.37-4.96) and 2.17% (95% CI: 1.53-3.07). CONCLUSION: The frequency of positive patch test results for both FMI and FMII remains high. Sensitization is also prevalent among children. Enhanced regulation and labelling of cosmetic products play a vital role in averting exposure and sensitization to fragrance allergens.

Psychological burden, anxiety, depression and quality of life in patients with hand eczema: A systematic review and meta-analysis.

BACKGROUND: Living with hand eczema (HE) has been associated with impaired quality of life (QoL), having anxiety and depression but the magnitude of association is not clear. OBJECTIVES: The aim of this systematic review and meta-analysis was to determine the psychological burden in terms of anxiety, depression and quality of life in patients with HE. METHODS: Several databases were systematically searched. Weighted means with standard deviation (SD) were calculated for disease severity, QoL, depression and/or anxiety scores among patients with HE. For studies presenting QoL, depression and/or anxiety scores in patients with HE and in controls the weighted means were compared with an unpaired t-test. In studies reporting Hand Eczema Severity Index (HECSI) and Dermatology Life Quality Index (DLQI), the correlation between HECSI and DLQI was estimated using Spearman's rank correlation (rs). RESULTS: In total, 81 studies encompassing 17,835 patients with HE and 31,541 controls were included. The weighted mean DLQI was 10.66 (SD 8.93) corresponding to a moderate-to-large effect on QoL and a strong correlation (rs: 0.76, 95% CI:0.56-0.87) between DLQI and HECSI was observed. The mean EQ-5D-VAS was significantly lower in patients with HE compared with controls (68.03 (SD 10.52) vs. 80.63 (SD 1.17), p < 0.00001). Patients with HE had higher mean HADS (Hospital Anxiety and Depression Scale) anxiety score (7.4 vs. 5.8, p = 0.0008) than controls but not higher HADS depression score (6.5 vs. 5.7, p = 0.32). Only one study assessed risk of anxiety, depression and suicidal ideation showing an increased odds of all diseases among patients with HE compared with controls. CONCLUSION: Hand eczema has a moderate-to-severe impact on quality of life with a strong correlation between disease severity and impact on quality of life. Patients with hand eczema have an impact on QoL comparable to other chronic diseases when measured with generic QoL scoring systems.

Assessing the efficacy of a German-inspired intervention on occupational contact dermatitis in Denmark: A randomised controlled trial with 3-month follow-up.

BACKGROUND: Occupational contact dermatitis (OCD) is a prevalent, often chronic disease that poses a risk for job loss and decreased quality of life. In Germany, a multi-step prevention programme emphasising early detection and highly specialised multidisciplinary treatment has been implemented with great success. OBJECTIVES: To examine the effectiveness of a Danish-adapted version of the German prevention effort on OCD severity, quality of life and occupational consequences at 3-month follow-up. METHODS: Randomised, controlled trial. Participants were recruited after the first referral from General Practitioner to Dermatologist with suspected OCD. The intervention group (IG) received a Danish-adapted, multidisciplinary intervention, while the control group (CG) navigated the Danish healthcare system without interference from the study. OCD severity, occupational consequences and quality of life were assessed at 3-month follow-up using self-reported questionnaires. RESULTS: A statistically significant decrease in the severity of eczema was found at 3-month follow-up in the IG compared to the CG. The IG were statistically significantly more likely to have seen a dermatologist at 3-month follow-up. Higher treatment level in the IG was indicated by the results but was not statistically significant. No significant difference was found in quality of life or occupational consequences. CONCLUSIONS: These initial findings suggest that early and specialised treatment of OCD improves OCD prognosis.

Hand eczema in Danish adolescents-Beyond atopic dermatitis.

BACKGROUND: Hand eczema (HE) is a common inflammatory skin disease that may have serious consequences. The age of HE onset varies, but is estimated to be early- to mid-20s. However, very little is known about HE in childhood and adolescence. OBJECTIVE: We aimed to explore the epidemiology, aetiology and severity of HE among a random sample of Danish adolescents drawn from the general population. METHODS: The study was designed as a self-administered questionnaire study. An electronic questionnaire was sent to a random sample of 13 000 individuals aged 15-19 years. RESULTS: The point-prevalence, 1-year prevalence and life-time prevalence of HE among Danish adolescents was 4.9%, 12.1% and 18.3%, respectively. Among patients with a history of HE, 64.6% of cases were not associated with atopic dermatitis. Of all respondents, 60.2% were either part-time or full-time employed. Among respondents with current HE, 38.2% believed that the occupational exposures either caused or exacerbated the HE. CONCLUSION: We found a high prevalence of HE among Danish adolescents which raises concern. Knowing the potential consequences that HE may have, attention should be paid to the prevention of HE in adolescence, especially on occupational aspects and prevention of skin disease in young workers.

Fragrance allergens in cosmetic products marketed for children in Denmark.

BACKGROUND: Fragrances are among the most common contact allergens in children. Cosmetic products are the most frequent source of skin exposure. OBJECTIVE: To investigate exposure to fragrance allergens among Danish children, based on a sample of 1179 cosmetic products marketed for children. METHODS: Information regarding cosmetic products marketed to children was obtained using a non-profit smartphone application registry, with data from December 2015 to November 2022. RESULTS: The number of validated products was 26 537, of which 1349 marketed for children. After elimination of duplicates, 1179 (4.4%) individual products remained. The majority 53.8% (634/1179) of the products were fragranced. The highest frequency of declared fragrances was found in 'Facial care'-products: 93.0% (80/86), of which 97.7% were lip balms. The highest number of labelled fragrances in one single product (n = 16) was found in a baby perfume. Fragrance mix I (FMI) or II (FMII) allergens were found in 25.3% (298/1179) of the products. Limonene and linalool were the two most frequently labelled fragrance allergens. CONCLUSION: Children can be exposed to a vast number of fragrance allergens from scented cosmetic products. Allergens from FM I and FMII are widely used in cosmetic products marketed to children. Patch testing with FMI and FMII remains relevant in children.

Validity and reliability of the Rosacea Area and Severity Index: A novel scoring system for clinical assessment of rosacea severity.

BACKGROUND: Rosacea is a common chronic inflammatory facial skin disorder. Standardized evaluation of the severity and extent of rosacea is important for baseline assessment and treatment effect. The currently used Investigator's Global Assessment (IGA) is unspecific and fails to consider subtypes/phenotypes of rosacea and area involvement. The Rosacea Area and Severity Index (RASI) was developed to give a more nuanced evaluation of rosacea features in four facial skin areas adjusted to the relative importance of each area of the face to obtain an overall severity score. OBJECTIVES: To validate RASI against the IGA and to assess the inter- and intraobserver reliability for RASI. METHODS: Sixteen dermatologists evaluated photographs of 60 adult patients with rosacea (3 photographs per patient, one from the front and one from each side). IGA and RASI scores were performed for interobserver reliability assessment. To determine intraobserver reliability, 14 dermatologists evaluated 10 other patients twice with at least 1 week interval. RESULTS: The IGA and RASI correlated well (Spearman correlation coefficient (SCC) = 0.75, 95% confidence interval (CI) = 0.72-0.78). Interobserver reliability was moderate for RASI and poor to moderate for IGA. Reliability was strongest for rhinophyma, followed by papules/pustules and erythema, and rather weak for telangiectasia. For area scores, interobserver reliability was strongest for cheeks, followed by nose, chin and forehead. We found a moderate-to-strong intraobserver agreement both for IGA and RASI. CONCLUSIONS: We have designed a new practical tool to examine clinical severity of rosacea. RASI proved simple and reliable in scoring clinical severity of rosacea with an agreement comparable to the currently used IGA although RASI will provide a more nuanced view of the current rosacea extent and severity. We suggest that RASI is used in the daily clinical setting as well as in clinical studies assessing the efficacy of rosacea therapies.

Allergic contact dermatitis from dyes used in the temple of spectacles.

BACKGROUND: We observed an increasing number of patients who presented with facial or retro-auricular dermatitis after skin contact with plastic spectacles or plastic covered temples. OBJECTIVES: To identify the allergens in plastic spectacles that may cause allergic contact dermatitis. METHODS: All patients with suspected allergic contact dermatitis to eyewear were tested with Solvent Orange 60 (SO60), four additionally with Solvent Yellow 14 (SY14), and five with scrapings from their own spectacles. In one case, a chemical analysis of the spectacles was performed to uncover the causative allergen. RESULTS: Three patients were allergic to SO60, two patients to SY14, and two patients were allergic to both SO60 and SY14. CONCLUSION: Patients with suspected allergic contact dermatitis from spectacles should be tested with SO60 and SY14, and based on findings from previous reports, also with Solvent Red 179.

Aluminium contact allergy without vaccination granulomas: A systematic review and meta-analysis.

Aluminium contact allergy is mainly seen as granulomas following immunization with aluminium-adsorbed vaccines and contact allergy following epicutaneous exposure may be overlooked. To investigate the prevalence of aluminium allergy confirmed by patch testing, with no association with vaccination granulomas, and explore whether epicutaneous exposure to aluminium can contribute to allergic contact dermatitis. Two authors independently searched PubMed and MEDLINE (OVID) for case studies on contact allergy to aluminium proven by patch testing. Age-stratified meta-analyses to calculate the pooled prevalence were performed. Twenty-five studies describing a total of 73 cases were included in the review. Seven studies were suitable for meta-analyses. The prevalence of aluminium contact allergy was 5.61% (95% confidence interval [CI] 0.12%-11.08%) for children and 0.36% (95% CI 0.04%-0.67%) for adults. The studies described a variety of epicutaneous exposures, where metallic aluminium, topical medicaments, and deodorants were the main sources. Aluminium sensitization without a known exposure source was described in 10 of the 25 articles. The prevalence of aluminium contact allergy in the general public may be higher than expected and not solely related to vaccination granulomas. However, the clinical relevance is rare if not related to granulomas.

Contact dermatitis caused by glucose sensors, insulin pumps, and tapes: Results from a 5-year period.

BACKGROUND: The number of patients with contact dermatitis from glucose sensors and insulin infusion sets is increasing. Patch testing is challenging because of a lack of information concerning the constituent materials of medical devices. OBJECTIVES: To report on products and causes of allergic reactions to glucose sensors or insulin infusion sets over a 5-year period and suggest a short screening series. METHODS: Analysis of patch test data from consecutive patients suspected of allergic contact dermatitis (ACD) to glucose sensors and/or insulin infusion sets from 2015-2019. RESULTS: Patient numbers increased from 4 to 15 per year; 30/38 (78.9%) were children. In 29 (76.3%), a diagnosis of allergic/probable ACD was established, mostly due to the tapes of the device or allergens in these tapes (n = 23) followed by allergens in the device housing (n = 10). Isobornyl acrylate, abitol, and colophonium were the most common allergens. Information from manufacturers was often difficult to obtain and, if accessible, inadequate. For this reason, the diagnosis was delayed for more than 1.5 years in 12 (31%) patients. CONCLUSIONS: The increasing number of patients, mostly children, with ACD from devices used in treatment of type 1 diabetes demonstrates the importance of this problem. Allergies can easily be overlooked, due to the lack of mandatory labeling of the constituent materials of the devices.

[Allergic contact dermatitis caused by insulin pumps and glucose monitors in children with diabetes].

Insulin pump therapy and the use of flash or continuous glucose monitoring in children is increasing. The diabetes devices are attached to the skin for several days to weeks with a strong adhesive, and recently, several cases of allergic contact dermatitis in children caused by components of the adhesive have been reported. In this review, we discuss such problems. The most frequent cause of allergic contact dermatitis is acrylates in the adhesive material, and the problem is serious and calls for rapid development of devices used in the treatment and monitoring of Type 1 diabetes without allergenic agents.

Cutaneous adverse reactions to anti-PD-1 treatment-A systematic review.

The use of the humanized monoclonal anti-programmed cell death 1 antibodies pembrolizumab and nivolumab as potent anticancer therapies is rapidly increasing. However, since their approval, numerous cases of cutaneous reactions have been reported. Cutaneous adverse reactions to these agents have yet to be fully characterized and range from nonspecific eruptions to recognizable skin manifestations, which may be localized and vary from mild to life threatening. This systematic review article provides an overview of the various adverse cutaneous reactions to pembrolizumab and nivolumab therapy and offers suggestions for their management.

Perception and Possible Causes of Skin Problems to Insulin Pump and Glucose Sensor: Results from Pediatric Focus Groups.

Use of insulin pump and glucose sensor in children with diabetes has been shown to cause skin problems such as eczema, wounds, and itching. The mechanisms for development of skin problems are unknown as well as the influence on the everyday life of the patient. The aim of this study was through focus groups to get more perspective on perception of skin problems as well as the patients' view on causes of skin problems. The two focus groups gave new insight into the consequences of skin problems to both patient and parents in terms of itching, concentration, self-esteem, guilt, etc. The focus group gave as well new perspectives on causes of skin problems, and especially three concepts must be further investigated: material (plastic, patch and vacuum effect), time, and skin characteristics.