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Artificial nail modelling systems (ANMS), encompassing artificial nails and long-lasting nail polish, are sources of acrylate exposure in beauticians and users of ANMS. Hairdressers’ exposure to ANMS from self-use and occupational exposure is currently unknown. In 2020 a questionnaire was sent to all hairdressers graduating during 2008 to 2018 in Denmark (n = 4,830). Self-use of ANMS was reported by 87.6% of respondents (1,251/1,428), and application of ANMS to others was reported by 22.1% (316/1,428). Of these, application to others was performed in a salon by 37.1% (109/294), privately by 51.0% (150/294) and in both settings by 11.9% (35/294). Compliance with glove use was seen in 23.0% (67/291) among those applying ANMS to others. Among hairdressers exposed to ANMS, 4.3% (52/1,218) reported ANMS-related hand eczema. Be-ing a trained beautician (adjusted odds ratio 3.26, 95% confidence interval 1.06–9.99) and having had a positive patch-test to acrylates (adjusted odds ratio 7.70, 95% confidence interval 1.44–41.13) were associated with ANMS-related hand dermatitis. In conclu-sion, hairdressers have a high prevalence of exposure to ANMS and ANMS-related hand dermatitis. Compliance with glove use when applying ANMS to others is poor. Patch-testing with acrylates is valuable in the diagnostic work-up of hand eczema in hairdressers.

Objective: To investigate and compare clinical features and US signs of inflammation in joints and entheses in patients with psoriasis with and without musculoskeletal pain, and the additional value of US in classification of PsA. Furthermore, to explore the association between such findings and patient-reported outcomes (PROs) and the performance of screening-questionnaires for identifying patients with PsA. Methods: Patients with psoriasis (n = 126) recruited from a nationwide survey were evaluated at one of four rheumatology departments. The evaluation included clinical examination, laboratory tests, radiography, greyscale and colour Doppler US of 48 joints and 12 entheses, PROs, and four screening questionnaires for PsA. Patients were classified with Classification for PsA (CASPAR), US-modified CASPAR, and US-only criteria. Results: When subgroups of self-reported pain (63%), no pain (29%) and diagnosed PsA (9%) were compared, patients with pain had higher tenderness-related clinical scores (tender joints, entheses and FM points) and US greyscale sum-scores, compared with 'no pain' patients. PROs were negligibly moderately correlated with pain-related clinical scores (Spearman's rho = 0.11-0.59, all patients), and negligibly weakly with US sum-scores (rho = 0.01-0.34). More patients could be classified as PsA when US synovitis/enthesitis was included as an entry criterion (US-modified CASPAR, 66% of all patients) compared with conventional CASPAR (35%) or US-only criteria (52%). Sensitivities of screening questionnaires were low for fulfilment of CASPAR (0.23-0.66), US-modified CASPAR (0.17-0.57), and US-only (0.20-0.57) criteria. Conclusion: Self-reported pain in psoriasis is related to US inflammation. US-modified CASPAR criteria identified almost twice as many patients as conventional CASPAR criteria. Screening questionnaires showed limited value.

Background Occupational hand eczema (OHE) is common in hairdressers, and many leave the trade because of the disease. However, the exact impact of OHE on career length is unknown. Objective To assess the effect of OHE on career length and risk factors associated with leaving the trade because of OHE in hairdressers followed-up for up to 35 years. Methods A prospective cohort study of Danish hairdressers graduating between 1985 and 2007 (n=5219) was performed. A questionnaire was sent in 2009 and 2020. The Danish Labor Marked Supplementary Pension Scheme provided information on affiliation to the hairdressing profession. Career length was assessed by Kaplan-Meier analyses. Results The median survival time was 12.0 (95% CI 11.0 to 13.0) years in graduates with OHE and 14.0 (95% CI 12.6 to 15.4) years in graduates without OHE (p<0.001). Graduates with a frequency of hand eczema (HE) of 'once', 'several times' and 'almost all the time' had a median survival time of 20.0 (95% CI 14.6 to 25.4), 12.0 (95% CI 10.7 to 13.3) and 7.0 (95% CI 5.6 to 8.4) years, respectively. Graduates with OHE that left the trade (partly) because of HE constituted 11.7% of the study population. Factors associated with leaving the trade because of HE included a history of atopic dermatitis (adjusted OR (aOR) 2.2 (95% CI 1.2 to 4.0), a history of a positive patch test (aOR 5.1 (95% CI 2.3 to 11.0) and allergy to hair dyes (aOR 9.4 (95% CI 3.4 to 25.6). Conclusion Career length is reduced in hairdressers with OHE, especially if frequently relapsing or caused by contact allergy, for example, to hair dyes.

Background Compliance with glove use and safe work practices are important factors in primary prevention of occupational hand eczema (OHE) in hairdressers. Objective To assess the risk OHE and compliance with skin protective measures in hairdressers trained before and after implementation of a nationwide skin protection program in Danish hairdressing vocational schools in 2011. Methods A repeated cross-sectional study was performed. A questionnaire was sent in 2009 and 2020. The Danish Labour Market Supplementary Pension Scheme provided information on yearly payments from the hairdressing profession. Results A response rate of 66.6% (305/460) was obtained in the 2009 survey and of 29.9% (363/1215) in the 2020 survey. The career time prevalence of OHE decreased from 42.8% to 29.0% (adjusted odds ratio 0.55 95% confidence interval [CI] 0.40-0.77) and the incidence rate of OHE decreased from 57.5 (95%CI 48.4-68.4) to 42.0 (95%CI 34.6-50.9) per 1000 person years (incidence rate ratio 0.73 [95%CI 0.56-0.95] between the two surveys). A statistically significant (P < .05) increase in glove use when doing wet-work and when handling hair dyes, permanent wave solutions and bleaching products was observed in the 2020 compared to the 2009 survey. Conclusion Our data suggest that skin protection training during apprenticeship reduces the risk of OHE in hairdressers. The lack of primary prevention of OHE in hairdressing vocational schools may be a missed opportunity in the prevention of the disease.

Background: The evidence for adding small-molecule drugs to an ongoing biologic treatment is sparse, but combination therapies appear to be advantageous in appropriately selected patients with psoriasis. To our knowledge, efficacy and safety of combination therapy with apremilast and biologics has not previously been reviewed. Materials and Methods: A literature search was performed on Medline (PubMed), Embase, Web of Science, and the Cochrane Library. Inclusion criteria were a diagnosis of psoriasis, age ≥ 18 years, concomitant treatment with apremilast and a specified biologic agent, and available safety and/or efficacy results. All papers written in English and published from database inception to August 2021 were included. No limit was set regarding study size. Results: The literature search yielded 447 citations. Of these, 19 studies published from 2015 to 2020 were included in the review. All papers referred to retrospective studies, comprising case reports (n = 9), case series (n = 8), or cohort studies (n = 2). A total of 172 patients with psoriasis were identified. Clinical subtypes included plaque psoriasis (n = 164), palmoplantar pustulosis (n = 7), and acute pustular psoriasis (n = 1). The observation period ranged from 3 weeks to 24 months. Geographical origin of studies was North America (n = 11), Europe (n = 4), and Asia (n = 4). In general, apremilast-biologic combination therapy was reported to be safe; across papers, one serious adverse event was registered (hospitalization due to weight loss). Adverse events (AEs) were otherwise mostly mild and gastrointestinal. No differences in AEs were observed in studies comparing apremilast mono- and combination therapy. In several papers, sufficient information about AEs was not reported or could not be extracted. Clinical response to combination treatment was evaluated at various time points, and only few studies used validated scores. In the remaining papers, efficacy data were descriptive and/or in pho

Papulopustular rosacea is notoriously a challenge to treat, and treatment options are scarce. Only limited data exist on the use of azithromycin in treatment of papulopustular rosacea. However, the unique pharmacokinetics of azithromycin may have several indications in the treatment of papulopustular rosacea. We here report a case of hard-to-treat papulopustular rosacea which was successfully treated with pulsed oral azithromycin in addition to maintenance isotretinoin.

Background: Patient-reported outcome measures (PROMs) are emerging tools used to capture a patient’s daily health status and enhance communication between patients and healthcare professionals. This study examined whether PROMs can be used to predict consultation needs in an outpatient clinic setting including patients diagnosed with psoriasis. Method: We evaluated a nationally developed set of PROMs for psoriasis patients, which included a standard set of questionnaires that capture patients’ perceptions of their experience and quality of life. Patients (n = 187) answered the psoriasis PROMs prior to an in-person consultation. Their responses were evaluated alongside patient, doctor, and nurse opinions on whether the subsequent consultation was necessary. Additionally, comments about the consultations from the patient, doctor, and nurse were collected and provided insights as to why certain consultations were deemed necessary. Results: Comparing the patient, doctor, and nurse responses addressing a need for consultation compared to the coded psoriasis PROMs results (red or green/yellow outcome), 23% of the patients with a green/yellow outcome were in need of a doctor’s consultation. Upon considering a subset of psoriasis PROMs questionnaires that reflect subjective responses (e.g., DLQI, PEST, MDI-2, and side effects), the proportion of patients that yielded a green/yellow outcome and were identified to require a doctor consultation increased to approximately 45%. Conclusions: The preliminary results show that the psoriasis PROMs were supportive in the consultation but alone cannot sufficiently guide healthcare professionals to determine whether in-person consultations are required.

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.

BACKGROUND: Accumulating evidence supports the findings of an altered gut microbiota in patients with autoimmune disease, however existing literature on the role of the gut microbiota in patients with psoriasis have demonstrated conflicting results and have mainly been based on 16s rRNA gene sequencing analysis OBJECTIVES: To examine whether the gut microbiota of patients with psoriasis was altered in composition and functional potentials compared with healthy controls and as a second approach compared with healthy cohabitant partners; further, to investigate relationships to disease severity and seasonal impact on the gut microbiota.METHODS: In a case-control study, 126 faecal samples were collected from a sample of 53 systemically untreated patients with plaque psoriasis; 52 age, sex, and BMI matched healthy controls; and 21 cohabitant partners. A subpopulation of 18 patients with psoriasis and 19 healthy controls continued in a longitudinal study, where 4-6 faecal samples were collected over 9-12 months. The gut microbiota was characterized using shotgun metagenomic sequencing analysis.RESULTS: A significantly lower richness (p=0.007) and difference in community composition (p=0.01) of metagenomic species (MGS) was seen in patients with psoriasis compared with healthy controls, and patients with psoriasis had a lower microbial diversity than their partners (p=0.04). Additionally, the functional richness was decreased in patients with psoriasis compared with healthy controls (p=0.01) and partners (p=0.05). Increased disease severity was correlated with alterations in taxonomy and function, with a slight tendency towards a lower richness of MGS, albeit not significant (p=0.08). The seasonal analysis showed no shifts in community composition in healthy controls or in patients with psoriasis.CONCLUSIONS: The findings of a different gut microbiota in composition and functional potentials between patients with psoriasis and healthy controls supp

Importance: Four distinct rosacea subtypes have traditionally been recognized, but the frequency of these subtypes among patients with rosacea remains unknown. Objective: To assess the frequency of 4 rosacea subtypes. Data Sources: This systemic review and meta-analysis included a search of 2 databases, PubMed and Embase, from inception of the databases to November 2, 2021. The search was filtered to include only studies of human participants published in English, French, and German. Study Selection: Studies were screened independently by 2 of the authors and were included if they were original with a sample size of 25 or more patients and reported absolute numbers or frequency of patients affected by rosacea subtypes. Studies that did not report sufficient data to calculate the proportions of subtypes were excluded. Data Extraction and Synthesis: Data extraction was performed independently and in duplicate by 2 of the authors, using the search term rosacea, according to the Preferred Reporting items for Systematic Reviews and Meta-analyses (PRISMA) guidelines. The search term, objectives, and study protocol methods were defined before the study was initiated. A total of 292 studies were included for full-text assessment. Owing to the heterogeneity of the included studies, a random-effects model was used. Main Outcome and Measures: The main outcome was the proportion of patients with rosacea in each of the 4 major subtype groups defined by the 2002 National Rosacea Society classification system. Measures were absolute numbers or frequency of patients affected by each of the 4 rosacea subtypes. Results: A total of 39 studies examining 9190 patients with rosacea were included. The pooled proportion of erythematotelangiectatic rosacea was 56.7% (95% CI, 51.4%-62.0%), of papulopustular rosacea was 43.2% (95% CI, 38.8%-47.6%), of phymatous rosacea was 7.4% (95% CI, 6.1%-8.9%), and of ocular rosacea was 11.1% (95% CI, 6.7%-16.3%). Subtype distribution occurred equally