Showing papers in "Acta Dermato-venereologica in 2011"

Factors Influencing Vitamin D Status

Abstract: The steroid hormone vitamin D is required for normal calcium and phosphorus metabolism and is thus an important contributor to musculoskeletal health Recent data have linked low vitamin D levels to a wide range of diseases, including cancer, cardiovascular disease, autoimmune disease and infection Adequate levels of vitamin D are maintained through its cutaneous photosynthesis and oral ingestion By some estimates, one billion people worldwide have vitamin D deficiency or insufficiency A number of factors influence the photosynthesis and bioavailability of vitamin D and contribute to risk of impaired vitamin D status These factors include variation in sun exposure due to latitude, season, time of day, atmospheric components, clothing, sunscreen use and skin pigmentation, as well as age, obesity and the incidence of several chronic illnesses This review will focus on factors that influence vitamin D status and contribute to the prevalence of low vitamin D levels

Psychosocial impact of hidradenitis suppurativa: a qualitative study

Abstract: Hidradenitis suppurativa influences patients' lives in many ways. It is therefore necessary to focus on the effects of the disease on daily life in order better to define patient-related outcomes in hidradenitis suppurativa studies. Interviews were conducted with 12 patients with hidradenitis suppurativa. Initial single interviews were followed by semi-structured and structured qualitative focus group interviews in order to improve the richness of the data and obtain in-depth understanding of the impact of the topics. Important topics were found to relate to aspects of interpersonal contact, especially in relation to smell and appearance, various emotional reactions, and feelings of lack of control. It was found that hidradenitis suppurativa has a great emotional impact on patients and promotes isolation due to fear of stigmatization. Shame and irritation are frequent and relate to smell, scars, itching and pain. Quality of life is adversely affected and professional support is needed.

Prevalence, Correlates and Characteristics of Chronic Pruritus: A Population-based Cross-sectional Study

Abstract: Pruritus is the most frequent symptom in dermatology. Its impact on quality of life is substantial. Epidemiological data on chronic pruritus (>6 weeks) at the population level is sparse, but is important in order to understand the burden and risk factors of this distressing symptom. The aim of this population-based cross-sectional study was to estimate the point, 12-month and lifetime prevalence of chronic pruritus, assessing its association with sociodemographic variables and describing its characteristics. A validated postal questionnaire was sent to 4,500 individuals in from the German General population. Three contact attempts were made. The response rate was 57.8% (n=2,540). The point prevalence of chronic pruritus was 13.5% (95% confidence interval (95% CI) 12.2-14.9%), 12-month prevalence 16.4% (15.0-17.9%) and lifetime prevalence 22.0% (20.4-23.7%). Multivariate analyses found only ethnic origin independently associated with chronic pruritus. The impact of chronic pruritus on quality of life and emotional well-being appears to depend on severity rather than on the presence of the symptom alone. This is the first study to investigate various prevalence estimates of chronic pruritus at the population level. Despite its limitations (self-report and potential self-selection) this study indicates a high burden of chronic pruritus in society.

Incidence, prevalence and future trends of primary basal cell carcinoma in the Netherlands.

Abstract: Basal cell carcinoma (BCC) incidence rates are increasing worldwide. This study’s objective was to estimate the occurrence of BCC in the Netherlands in terms of incidence and prevalence. Data on first primary carcinomas were retrieved from the Eindhoven Cancer Registry and extrapolated to the Dutch population. Extrapolated data showed a total of 444,131, histologically confirmed cases in the Netherlands between 1973 and 2008. During this period, age-adjusted incidence rates (European Standard Population) increased approximately threefold from 40 to 148 per 100,000 in males and from 34 to 141 in females. Lifetime risk of BCC was 1 in 5–6 for Dutch citizens. Disease prevalence in the Netherlands was 1.4% and almost four times higher than this (5.4%) in the oldest age group (age 65 years or more). Predictions of future trends showed no signs of a plateau in the number of cases. These estimates should urge Dutch policymakers to provide solutions for the growing group

Genital Psoriasis: A Systematic Literature Review on this Hidden Skin Disease

Abstract: It is well known that the genital skin may be affected by psoriasis. However, little is known about the prevalence and clinical appearance of genital psoriasis, and genital skin is often neglected in the treatment of psoriatic patients. We performed an extensive systematic literature search for evidence-based data on genital psoriasis with respect to epidemiology, aetiology, clinical and histopathological presentation, diagnosis and treatment. Three bibliographical databases (PubMed, EMBASE and the Cochrane Library) were used as data sources. Fifty-nine articles on genital psoriasis were included. The results show that psoriasis frequently affects the genital skin, but that evidence-based data with respect to the efficacy and safety of treatments for genital psoriasis are extremely limited. An advised treatment paradigm for genital psoriasis, based on the levels of evidence, is: first-line: (weak) topical corticosteroids; second-line: vitamin D preparations or tar-based treatments.

Mast cells as regulators of skin inflammation and immunity.

Abstract: Mast cells are known to be the effector cells of immediate-type allergy, but experimental evidence obtained during the last decade has revealed their role in innate and acquired immunity. Upon activation mast cells can undergo an anaphylactic or piecemeal degranulation or degranulation-independent mediator secretion, resulting in rapid or slow release of soluble mediators, such as serine proteinases, histamine, lipid-derived mediators, cytokines, chemokines and growth factors. Mast cells can express different receptors and ligands on the cell surface, molecules that can activate the cells of the immune system, such as different subsets of T cells. All these mediators and cell surface molecules can promote inflammation in the skin. During the last years, a new role for mast cells has emerged; induction of tolerance or immunosuppression and interaction with regulatory T cells. However, the mechanisms that switch the proinflammatory function of mast cells to an immunosuppressive one are unknown. In this review, the immunoregulatory function of mast cells and its relation to skin inflammation are discussed.

High Prevalence of Mental Disorders and Emotional Distress in Patients with Chronic Spontaneous Urticaria.

Abstract: Quality of life, which is impaired in patients with chronic spontaneous urticaria (CSU), is influenced by comorbid mental disorders. The aim of this study was to assess the prevalence and spectrum of mental disorders and to determine levels of emotional distress in patients with CSU. One hundred patients with CSU were investigated for mental disorders (by specialized diagnostic interviews and psychometric instruments), levels of emotional distress (by the Global Severity Index of the Symptom Check List; SCL-90R GSI) and underlying causes of their urticaria (by dermatological assessment). Forty-eight percent of patients with CSU were diagnosed with one or more psychosomatic disorders; most common were anxiety disorders (especially phobias), followed by depressive and somatoform disorders. The use of psychometric instruments confirmed these findings. Levels of emotional distress were significantly higher and more commonly increased in patients with CSU with mental disorders. In conclusion, patients with CSU frequently experience anxiety, depression, and somatoform disorders, and these disorders are linked to increased emotional distress. These findings call for screening of patients with CSU for mental disorders in routine clinical practice as well as for controlled clinical trials.

Epidermolysis bullosa acquisita: a retrospective clinical analysis of 30 cases.

Abstract: Epidermolysis bullosa acquisita (EBA) is an acquired, autoimmune blistering disorder caused by autoantibody production against type VII collagen The aim of this study was to examine the clinical types, treatments, and outcomes of 30 patients with EBA In our cohort, the median age of onset was 440 years, with a similar incidence for both genders (467% male, 533% female) The majority of patients had classic type (367%) and bullous pemphigoid (BP)-like type (467%) EBA The remaining patients had mucous membrane pemphigoid-like (67%), Brunsting-Perry pemphigoid-like (67%), and linear IgA bullous dermatosis-like type (33%) EBA All patients were treated initially with a combination of methylprednisolone, dapsone and colchicine No significant differences in time to remission were identified between patients with classic vs BP-like EBA In a second subset analysis of 19 patients, a group treated with high-dose (> 8 mg) methylprednisolone achieved remission earlier (median time to remission: 3 months) than a group treated with low-dose (≤ 8 mg) methylprednisolone (median time to remission: 12 months), irrespective of clinical type (p = 0003) Key words: epidermolysis bullosa acquisita; retrospective study, clinical study remission

Differences in itch characteristics between psoriasis and atopic dermatitis patients: results of a web-based questionnaire.

Abstract: Differences in itch characteristics between different inflammatory dermatoses are not well described. The aim of this study was to assess differences in itch characteristics between patients with psoriasis and atopic dermatitis using a previously validated web-based questionnaire that was made available through the National Psoriasis Foundation and National Eczema Association for Science and Education websites. Participants rated frequency and intensity of itch, associated symptoms, itch descriptors, and effect of scratching. A total of 524 subjects with atopic dermatitis and 195 subjects with psoriasis completed the survey. Atopic dermatitis responders experienced more frequent and more intense itch. Associated sweating and heat sensation were also more common in atopic dermatitis. Scratching was considered pleasurable in both atopic dermatitis and psoriasis; pleasurability correlated weakly with itch intensity in atopic dermatitis. Psoriasis respondents reported higher embarrassment associated with itch. Itch sensation is experienced differently among patients with atopic dermatitis and psoriasis. Future therapeutic interventions may be developed to target these differences.

Skin problems of the stump in lower limb amputees: 1. A clinical study.

Abstract: Use of a prosthesis in lower limb amputees can lead to skin problems of the amputation stump. However, little is known about the epidemiology and type of problems experienced. We conducted a cross-sectional survey consisting of a questionnaire and a clinical assessment of the amputation stump. The aims of the study were to estimate the prevalence of skin problems of the amputation stump, to evaluate the impact of these skin problems and to evaluate differences between clinically observed skin problems and skin problems reported by the amputee. Participants (n = 124) were recruited from among lower limb amputees who visited an orthopaedic workshop. The prevalence of skin problems was 36%. Problems identified were: reduction in prosthesis use, and reduction in walking distance without a break. Significantly more skin problems were reported than observed (p = 0.011). Cold skin and excessive perspiration in particular were significantly more reported than observed.

Patient Education in Chronic Skin Diseases: A Systematic Review

Abstract: The negative impact of skin disease on quality of life (QoL) has been described in many studies. Patient education as an adjunct to treatment, with the aim of improving QoL and reducing disease severity, is a relatively new technique in dermatology. The objective of this article is to analyse and summarise evidence concerning the effects of patient education on QoL and disease severity in patients with chronic skin diseases. All source material was identified through searches in MEDLINE and Embase. The CONSORT statement was used to assess the quality of reported randomised controlled studies. Ten of 254 studies met the inclusion criteria. In five of them, statistically significant improvements in QoL were reported. The severity of skin disease significantly improved in three studies. In conclusion, patient education appears to be effective in improving QoL and in reducing the perceived severity of skin disease.

Acne as seen by adolescents: results of questionnaire study in 852 French individuals.

Abstract: Acne can have an important psychological impact. We surveyed 852 adolescents aged 12-25 years about their knowledge of acne and its treatment in a non-medical context. The study involved a questionnaire administered to callers to a youth telephone helpline in France. Callers were categorized into those who currently had acne, those who had had acne previously, and those who had never had acne. Most respondents (66.2%) had experienced acne symptoms, which were mild in 50.2% of cases and severe in 16% of cases. Often, acne had been long-lasting (>12 months in 49.6% of cases). Many thought that gender, excess weight, eating dairy products, and physical activity did not influence acne, and that frequent washing could improve acne. Eating chocolate and snacks, smoking cigarettes, sweating, not washing, touching/squeezing spots, eating fatty foods, using make-up, pollution, and menstruation were thought to worsen acne. The majority (80.8%) did not believe acne to be a disease, but rather a normal phase of adolescence, yet 69.3% agreed it should be treated. There was a preference for topical vs. systemic treatment. Many (38.6%) of the respondents with acne had not consulted a physician. Almost two-thirds of respondents wanted more information about acne. Providing more information about acne might increase the likelihood of them consulting a physician and getting better treatment for the condition.

Quality of life in patients with uraemic xerosis and pruritus.

Abstract: A total of 334 end-stage renal disease patients with moderate-to-severe uraemic xerosis were surveyed for quality of life assessment, using the generic Short-Form (SF-12) scale and the Dermatology Life Quality Index (DLQI). In parallel, the intensity of xerosis at four sites (the two lower legs, chest, forearm without arterio-venous shunt) was assessed, using a five-point lesional intensity score. Pruritus was auto-assessed by the patients, using a 100-mm visual analogue scale. Uraemic xerosis patients had a marked deterioration in the Physical Component Summary of SF-12 (mean ± SD: 34.92 ± 9.98) and DLQI (5.06 ± 4.73). Younger age (r = -0.20), xerosis intensity (r = 0.14), and the presence of pruritus (p < 0.0001) and its intensity (r = 0.50) were shown to be significant worsening factors of DLQI. Because a low, but significant, correlation between the intensity of xerosis and pruritus was also demonstrated (r = 0.18), the direct contribution of age, xerosis and pruritus on DLQI was analysed in a multiple linear regression model. Age and pruritus intensity, but not xerosis intensity, were found to be independent contributors to DLQI deterioration (p < 0.0005). On the other hand, uraemic xerosis without associated pruritus still resulted in DLQI alteration (3.24 ± 3.99). It was concluded that young age and intensity of uraemic pruritus compromise quality of life in uraemic xerosis patients. Some characteristics of uraemic xerosis other than xerosis intensity may also be involved in quality of life alteration.

5-year recurrence rates of Mohs micrographic surgery for aggressive and recurrent facial basal cell carcinoma.

Abstract: Mohs micrographic surgery allows for complete microscopic examination of the surgical margin when treating aggressive and recurrent facial basal cell carcinomas. This leads to the highest cure rates and maximal preservation of healthy tissue. The 5-year recurrence rates of 587 aggressive and/or recurrent facial basal cell carcinomas treated during 1993 to 2003 at our centre were studied retrospectively. The resulting 5-year recurrence rates using Kaplan-Meier survival analysis were 2.1% for primary (previously untreated) tumours, 5.2% for recurrent basal cell carcinomas and 3.3% overall. In total, 87.9% of the tumours required at least two stages of Mohs micrographic surgery. The surgical defect's size after complete excision was, on average, approximately twice the size of the defect after excision of the clinically visible tumour with a 2-3 mm margin. Mohs micro-graphic surgery is underused in Scandinavia despite being the treatment of choice for aggressive and recurrent facial basal cell carcinomas.

Identical Glycine Substitution Mutations in Type VII Collagen May Underlie Both Dominant and Recessive Forms of Dystrophic Epidermolysis Bullosa

Abstract: Autosomal dominant and recessive forms of dystrophic epidermolysis bullosa (DEB) result from mutations in the type VII collagen gene (COL7A1). Although paradigms have emerged for genotype/phenotype correlation in DEB, some pathogenic mutations in COL7A1, notably glycine substitutions within the type VII collagen triple helix, may lead to diagnostic difficulties, since certain glycine substitutions can result in either dominant or recessive mutant alleles. Delineation of glycine substitution mutations into two discrete groups, however, is made difficult by observations that, for some particular glycine substitutions in type VII collagen, the same mutation can result in both dominant and recessive disease. In this report we describe four further glycine missense mutations: p.Gly1483Asp, p.Gly1770Ser, p.Gly2213Arg and p.Gly2369Ser, which can lead to either dominant or recessive DEB, and which result in a spectrum of clinical abnormalities. We also identify a further 30 new glycine substitution mutations that cause either dominant or recessive DEB, but not both. In screening the COL7A1 gene for mutations in individuals with DEB our data highlight that delineation of glycine substitutions in type VII collagen has important implications for genetic counselling.

Genital ulcers associated with Epstein-Barr virus infection (ulcus vulvae acutum).

Abstract: Epstein-Barr virus (EBV) infection may rarely be associated with genital ulcers (ulcus vulvae acutum), a very painful manifestation. The aetiopathogenesis of the disease is not fully understood. We describe here a case of an adolescent virgin with multiple, deep genital ulcers associated with acute infectious mononucleosis. The diagnosis was supported by the clinical symptoms, atypical lymphocytosis, elevated circulating levels of liver enzymes, positive EBV serology, and the detection of EBV in a swab sample and a biopsy specimen by PCR. The virus could not be detected by immunohistochemistry or in situ hybridization. After a short course of methylprednisolone as a supportive treatment, the ulcers healed within one month. No relapse occurred during the 2-year follow-up. Available data relating to the aetiopathogenesis of this condition are reviewed, and we speculate that it may have been caused by percutaneous autoinoculation through cervicovaginal fluid.

Survival data for 299 patients with primary cutaneous lymphomas: a monocentre study.

Abstract: The aim of this study was retrospectively to assess the validity of the 2005 WHO-EORTC classification for primary cutaneous lymphomas (PCL) in a large cohort of patients of a single German skin cancer unit. All patients with PCLs consecutively visiting our hospital between January 1980 and December 2005 were included in a retrospective monocentre study, analysing their histological and clinical data. A total of 312 patients fulfilled the inclusion criteria for PCL. In 299 patients clinical information and paraffin material were sufficient for detailed classification. Of the 299 patients, 63% expressed a T-cell and 37% a B-cell phenotype. Mycosis fungoides was the entity with the highest frequency (30.9%), followed by primary cutaneous follicle centre lymphomas (16.9%) and lymphomatoid papulosis (15.9%). The mean follow-up period was 38.4 months. Five-year disease-specific survival was 80.5% for mycosis fungoides, 92.5% in primary cutaneous anaplastic large cell lymphoma, 100% in lymphomatoid papulosis, 98.1% in primary cutaneous follicle center lymphoma, 100% in primary cutaneous marginal zone lymphoma and 63.2% in diffuse large B-cell lymphoma, leg type. Our data are in line with the data collected by the WHO-EORTC. This is further evidence for the reliability of the WHO-EORTC classification and staging system.

Quality of life, use of topical medications and socio-economic data in hand eczema: a Swedish nationwide survey.

Abstract: Hand eczema is common and has an adverse impact on the lives of patients. There is a need for population-based surveys on the pharmacoepidemiological aspects, quality of life and impact of socioeconomic factors in hand eczema. The aim of this cross-sectional study was to investigate these factors. A questionnaire-based nationwide survey of health was performed, including questions on hand eczema, use of pharmaceuticals and socioeconomic factors. Quality of life was estimated with the generic instrument Short Form 36 (SF-36). The questionnaire was sent to 7,985 persons (age range 18-84 years), response rate 61.1% (n=4,875). The 1-year prevalence of hand eczema in the study population was 7.5%. In this group, quality of life was lower. All dimensions of SF-36 were affected, most markedly general health and those dimensions reporting on mental health. In the group with self-reported hand eczema, 51% reported using topical pharmaceuticals. Hand eczema was more common among women (9.1%, n=2,630) than among men (5.6%, n=2,245) and in the age group below 65 years (8.5%, n=3,274) compared with those aged 65 years and over (4.3%, n=1,151). This survey clearly demonstrates the impact of hand eczema on several dimensions of life and also highlights age, gender and socioeconomic differences.

Effect of Narrow-band Ultraviolet B Phototherapy on p63 and MicroRNA (miR-21 and miR-125b) Expression in Psoriatic Epidermis

Abstract: Psoriasis is an inflammatory skin disease in which dysregulation of p63, a member of the p53 family that is crucial for skin development and maintenance, has been demonstrated. Involvement of miR-203, miR-21 and miR-125b, small non-coding RNAs implicated in the regulation of p63 or p53, has been suggested in the patho-genesis of psoriasis. To elucidate the roles of p63 and p63-related microRNAs in psoriasis and to increase our understanding of the mechanisms of narrow-band ultraviolet B (NB-UVB) phototherapy, we studied the effects of NB-UVB treatment on the expression of these molecules. Skin biopsies from 12 psoriasis patients were collected before, during and after NB-UVB therapy. Real-time PCR and immunohistochemistry showed that p63 expression was not significantly affected, whereas NB-UVB phototherapy significantly decreased expression of miR-21 (p = 0.003) and increased miR-125b levels (p = 0.003). The results indicate that the unresolved p63 abnormality in treated epidermis may play a role in maintenance of this disease.

Teledermatological monitoring of psoriasis patients on biologic therapy.

Abstract: Patients with psoriasis who are being treated with biologics require intensive monitoring. However, the monitoring tool teledermatology is not commonly used. We investigated the applicability of a mobile phone based teledermatological system for monitoring psoriasis patients on biologic therapy. Nineteen patients were given mobile phones with built-in cameras, in order to transmit health status data and images (mobile visits) weekly for a 6-month period. Face-to-face visits were carried out at weeks 0, 4, 12 and 24. Image quality, the Psoriasis Area and Severity Index (PASI), the handling of adverse events, and patients' feedback questionnaires were evaluated. Ninety-five percent of the images were of sufficient quality to enable accurate assessment of the PASI. The distance between the interpolated face-to-face PASIs and the corresponding mobile visit PASIs was 0.46 ± 2.15 (median ± interquartile range). All 155 adverse events were handled correctly by the system. This teledermatological system represents a reliable tool for management of psoriasis patients who are on systemic treatment.

Skin problems of the stump in lower-limb amputees: 2. Influence on functioning in daily life.

Abstract: The aim of this study was to analyse the influence of stump skin problems on functioning in daily life in lower limb amputees. A cross-sectional study was performed by means of a questionnaire containing 9 questions assessing functioning in daily life. Question scores were added to give a total score (range 0 (no influence) to 27 (maximum negative influence)). Two thousand and thirty-nine people were invited to participate, with 805 participants completing a questionnaire. Of these, 507 reported one or more skin problems. Skin problems had a negative influence on ability to perform household tasks, prosthesis use, social functioning, and participation in sports. The mean total score was 5.5 +/- 4.1. This correlated significantly with the number of skin complaints (r=0.483; p=0.01). In linear regression analyses, gender (beta=-0.15) and number of skin problems (beta=0.25) accounted for 23% of the total score. This study confirms the influence of skin problems on functioning in daily life.

Insulin Resistance is Increased in Patients with Vitiligo

Abstract: The aim of this study was to evaluate the relationship between vitiligo and insulin resistance (IR). A total of 96 subjects were included in the study; 57 patients with vitiligo and 39 subjects in an age and a body mass index-matched control group. In fasting blood samples, insulin, C-peptide, glucose, total cholesterol, triglyceride, low-density lipoprotein-cholesterol (LDL-C) and high-density lipoprotein-cholesterol (HDL-C) were measured. IR was calculated with the homeostasis model assessment-IR (HOMA-IR) method. Comparison of the vitiligo and the control groups revealed that patients with vitiligo had higher IR (2.3 vs. 2.0, p < 0.01), higher insulin and C-peptide levels (p < 0.001, p < 0.001, respectively), higher LDL/HDL ratio and lower HDL-C levels (p < 0.01, p < 0.0001, respectively). Systolic blood pressures of patients with vitiligo were also higher compared with control subjects (p < 0.01). Further experimental and clinical studies are needed to elucidate the molecular mechanisms underlying this association.

Evidence for methotrexate as a useful treatment for steroid-dependent chronic urticaria.

Abstract: Chronic urticaria is a relatively common disorder that can be severe and may impair quality of life. The management of recalcitrant chronic urticaria that is not responding to histamine antagonists includes short-term systemic corticosteroids, anti-inflammatory drugs (colchicine, dapsone and sulfasalazine) and immunomodulatory agents, such as cyclosporine, methotrexate, plasmapheresis and intravenous immunoglobulin. We report here our retrospective experience with the use of methotrexate in 8 patients (2 males and 6 females) with recalcitrant chronic urticaria who were not responding to high-dose first- and second-generation antihistamines. The mean duration of the disease prior to methotrexate treatment was 12 ± 8 months. Patients were treated for a mean duration of 4.5 months with a mean dose of 15 mg methotrexate/week. A complete response was achieved in 7 out of 8 patients (87%). Five out of the 7 patients were disease-free during a period of 1-10 months follow-up after discontinuing methotrexate and prednisone therapy. No serious adverse effects were reported. Methotrexate is an effective and safe treatment for chronic urticaria in patients who are not responsive to conventional therapy.

Early stages of melanoma on the limbs of high-risk patients: clinical, dermoscopic, reflectance confocal microscopy and histopathological characterization for improved recognition.

Abstract: Early stages of 36 melanomas on limbs were morphologically characterised. Most occurred in high-risk patients (multiple and/or familial melanoma) attending a referral unit for melanoma and pigmented lesions. None of the tumours was clinically suspicious for melanoma (mean diameter of 4.3 mm). The tumours were classified into four dermoscopic groups: (i) prominent network (n = 16); (ii) delicate network (n = 5); (iii) hypo-pigmentation with dotted vessels (n = 10); and (iv) diffuse light pigmentation with perifollicular pigmentation (n = 5). Confocal microscopy performed in 12 cases allowed the identification of atypical, single cells within epidermal layers. Histopathology showed marked large atypical cells in a pagetoid spreading pattern in most cases. Significant associations were detected between the third dermoscopic group and naevoid histological appearance and delay in detection, and between the fourth group and lentigo-maligna-like features. Dermoscopy allowed an increase in the suspicious threshold in these difficult melanomas in high-risk patients and enabled the subclassification of early melanomas on the limbs, with a correct confocal and histopathological correlation. Although the biological behaviour of these incipient tumours remains uncertain, the most appropriate treatment seems to be recognition and proper excision.

Scalp stratum corneum histamine levels: novel sampling method reveals association with itch resolution in dandruff/seborrhoeic dermatitis treatment.

Abstract: Dandruff and seborrhoeic dermatitis are accompanied by bothersome itch. We have established a novel non-invasive methodology to sample histamine levels in the stratum corneum in order to facilitate an understanding of pruritogenesis in this condition. Histamine levels were assessed in two groups of subjects with dandruff before and after 3 weeks of treatment with a commercial potentiated zinc pyrithione shampoo. A comparative population without dandruff was also studied. Itch self-perception was quantified on a visual analogue scale. The histamine level in subjects with dandruff was more than twice that in those who did not have dandruff. Under conditions known to resolve flaking symptoms, the shampoo led to a reduction in histamine in subjects with dandruff to a level that was statistically indistinguishable from those who did not have dandruff. This reduction in histamine was accompanied by a highly significant reduction in the perception of itch intensity. These findings suggest an association between the subjective perception of itch in the scalp and the level of histamine in the skin.

Psychosocial stress and coping in alopecia areata: a questionnaire survey and qualitative study among 45 patients.

Abstract: The controversial role of psychosocial stress in alopecia areata has been discussed widely, but there has been little research into patients' subjective stress experiences and coping. The aim of this study was to explore general and specific coping strategies in alopecia areata and to assess the role of psychosocial stress in the onset and course of alopecia areata from the patient's viewpoint. Forty-five patients conducted measurements of general coping strategies and body image. Qualitative data analysis was performed referring to interviews of stress experiences before the onset of alopecia areata, stress-reactivity, subjective disease models, consequences of alopecia areata and illness-related coping strategies. Patients do not have dysfunctional coping strategies in general, but they benefit from advantageous strategies in terms of better alopecia areata-specific coping and course of disease after 6 months. Psychological interventions in alopecia areata should focus on training general and alopecia areata-specific coping competences and regulating negative emotionality and insecurity, particularly at the first onset of alopecia areata.

Predictors of pain associated with photodynamic therapy: a retrospective study of 658 treatments.

Abstract: Pain is the most common side-effect of photodynamic therapy (PDT). Our main objective was to identify pain predictors in PDT. In total, we performed 658 treatments on 377 patients at our department during 2004. Larger sized treatment areas were the strongest pain predictor, and actinic keratoses were more painful to treat than basal cell carcinomas and Bowen's disease. The most sensitive areas to treat were the face and scalp. Gender and age did not influence pain. Although treatment outcome was not our primary objective, 62% of 95 superficial basal cell carcinomas that were followed for 3 years showed complete clearance. Also, perforation of nodular basal cell carcinomas did not lead to better clinical results. In conclusion, the size of the treatment area, the diagnosis and the lesion location influence pain during PDT. Nevertheless, there is a large variance in visual analogue scale assessment within each group, thereby limiting the ability to predict pain.

Are subjective accounts of itch to be relied on? The lack of relation between visual analogue itch scores and actigraphic measures of scratch.

Abstract: In recent years there has been a considerable growth in interest in subjective measures of disease severity in dermatology (1–3) Much of the focus of this effort has been on attempts to measure the impact of disease on an individual sufferer, accepting that objective accounts may be inadequate to express disease impact To take an example, the impact of psoriasis affecting, say, 50% of the body area may be greater in a person who likes to regularly swim compared with somebody who does not swim (4) An objective score such as the PASI (5) will not reflect these aspects of disease that are important (4) These arguments are widely acknowledged and accepted (6–8) Some measures of disease severity or disease impact include individual subjective measures such as itch An example would be the SCORAD, which includes subjective accounts of itch using a visual analogue scale (VAS) (9) Inclusion of itch in such scores is predicated on the idea that distress due to itch may provide information on suffering that is not fully accounted for by other measures (1, 10) Measurement of itch presents its own problems (10) Itch is arguably the principal symptom of skin disease (10–12) Like pain, itch is subjective and it is difficult to see how it can be measured except by subjective account However, much as pain has consequences – acute pain, for instance, may be accompanied by vocalisation, or an increase in heart rate – itch provokes the desire to scratch (10), a behaviour that may be independently verified A number of strategies have been suggested for how to measure scratch and building on pioneering work by Felix & Shuster (13) we have used wristworn accelerometers or actigraphs (Actiwatch Plus, Cambridge Neurotechnology), worn at night to record scratch as a proxy measure of itch, having validated this technique against infrared videoing of children and manual scoring of scratch movements (14, 15) As compared with earlier work, our focus has been to develop strategies that can be used by subjects in their own homes and that take advantage of digital recording and analytical methods Others have followed analogous approaches (16–18) Our goal can be considered analogous to the use of peak flow meters to monitor disease severity in asthma, in that we wish to develop a symptom tool that can be used for longitudinal monitoring of disease activity One unexpected finding from our previous work on children was that there was little relation between subjective accounts of itch and objective measurements recorded using an actigraph – despite the latter being validated by direct observation of scratch behaviour through infrared videoing of children in bed at night (15) This raises an important issue: assessment, recall and formulation of subjective accounts may be prone to error or artefact (19–22) If this is accepted, then whatever the virtues of subjectively recalled impacts of disease, error remains Our aim in the present work was to explore the relation between subjective accounts of itch using visual analogue scales, and scratch assessed objectively using actigraphs In the process we also wished to address some limitations of our previous work (14,15): rather than examining correlations between subjects, we examined scores for each subject at multiple time points such that within-person correlations between itch and scratch could be examined Our results are subject to more than one interpretation, but suggest that subjective measures of itch in this particular context may indeed be prone to artefact, perhaps due to anchoring bias (7, 23, 24), and that their uncritical use of them may be misleading

Abatacept is a promising treatment for patients with disseminated morphea profunda: presentation of two cases.

Abstract: Morphea profunda is a rare disease that mainly affects young women and often has a progressive course with physical and psychological sequelae. The skin becomes sclerotic after an initial inflammatory reaction and joint contractures can develop. The aetiology is unknown. Until now, no successful therapy has been proven for this morphea variant. On the basis of new insights into the key role of effector T cells in scleroderma, in particular Th-17, T-cell directed therapies are expected to have promising effects. We report here the first two cases of morphea profunda treated with abatacept. Abatacept had a clinical effect on the active disease, in addition to softening old sclerotic lesions.

Efficacy of Infliximab for Hidradenitis Suppurativa: Assessment of Clinical and Biological Inflammatory Markers

Abstract: Treatment of hidradenitis suppurativa (HS) is often unsatisfactory. The efficacy of infliximab for treatment of the disease has been suggested. The main objective of this study was to evaluate the efficacy and side-effects of infliximab in the treatment of moderate to severe HS, resistant to local and systemic treatments. The secondary objective was to determine whether inflammation blood test results were changed. A retrospective monocentric study of all the patients seen consecutively for HS and treated with infliximab was performed. A median of six intravenous infusions (range 3-19) were performed. The end-points were self-improvement of HS (globally and in terms of pain, seeping and quality of life). The condition of six of seven patients improved (by nearly 50%) and none was aggravated. Adverse effects occurred in two patients; eczematous eruption in one case and cervical abscess in another case. We found no significant changes in inflammatory blood marker values. In conclusion, infliximab therapy was shown to be efficient and well tolerated in six of seven patients with HS resistant to previous therapy in our series. This was in agreement with pre-existing literature showing that 52 of 60 patients (87%) were improved after infliximab therapy.