BackgroundInherited ichthyoses represent a group of rare skin disorders characterized by scaling, hyperkeratosis and inconstant erythema, involving most of the tegument. Epidemiology remains poorly described. This study aims to evaluate the prevalence of inherited ichthyosis (excluding very mild forms) and its different clinical forms in France.MethodsCapture – recapture method was used for this study. According to statistical requirements, 3 different lists (reference/competence centres, French association of patients with ichthyosis and internet network) were used to record such patients. The study was conducted in 5 areas during a closed period.ResultsThe prevalence was estimated at 13.3 per million people (/M) (CI95%, [10.9 – 17.6]). With regard to autosomal recessive congenital ichthyosis, the prevalence was estimated at 7/M (CI 95% [5.7 – 9.2]), with a prevalence of lamellar ichthyosis and congenital ichthyosiform erythroderma of 4.5/M (CI 95% [3.7 – 5.9]) and 1.9/M (CI 95% [1.6 – 2.6]), respectively. Prevalence of keratinopathic forms was estimated at 1.1/M (CI 95% [0.9 – 1.5]). Prevalence of syndromic forms (all clinical forms together) was estimated at 1.9/M (CI 95% [1.6 – 2.6]).ConclusionsOur results constitute a crucial basis to properly size the necessary health measures that are required to improve patient care and design further clinical studies.

These guidelines for the management of congenital ichthyoses have been developed by a multidisciplinary group of European experts following a systematic review of the current literature, an expert conference held in Toulouse in 2016 and a consensus on the discussions. They summarize evidence and expert-based recommendations and are intended to help clinicians with the management of these rare and often complex diseases. These guidelines comprise two sections. This is part one, covering topical therapies, systemic therapies, psychosocial management, communicating the diagnosis and genetic counselling.

These guidelines for the management of congenital ichthyoses have been developed by a multidisciplinary group of European experts following a systematic review of the current literature, an expert conference held in Toulouse in 2016, and a consensus on the discussions. These guidelines summarize evidence and expert-based recommendations and intend to help clinicians with the management of these rare and often complex diseases. These guidelines comprise two sections. This is part two, covering the management of complications and the particularities of some forms of congenital ichthyosis.

This is the first study investigating the different factors that could impact quality of life in patients with ichthyosis. This provides an essential framework from which physicians can develop strategies to improve patient care and quality of life and to develop a specific quality of life questionnaire.

Summary Backround Propranolol is now widely used to treat severe infantile haemangiomas (IHs). Very few cases of propranolol‐resistant IH (PRIH) are mentioned in the literature. Objectives To describe the characteristics of PRIHs. Methods A national, multicentre, retrospective, observational study was conducted from February 2011 to December 2011. All patients with PRIH evaluated by the members of the Groupe de Recherche Clinique en Dermatologie Pédiatrique from 1 January 2007 to 1 December 2011 were eligible. Results Among 1130 patients treated with propranolol for infantile haemangioma, 10 (0·9%) had PRIHs. Haemangioma propranolol resistance was observed at all ages during early childhood and at any proliferation stage. Conclusions PRIH is a rare phenomenon that raises questions and merits further investigation.

Moderate to severe ichthyosis is known to have a significant impact on quality of life. A French national survey was performed to describe in more detail how ichthyosis impacts the patients' lives. A questionnaire specifically dedicated to ichthyosis was distributed to patients followed in hospital expert centres or members of the French association of patients. A total of 241 questionnaires were completed and returned (response ratio: 29% for children and 71% for adults). A negative impact of ichthyosis was obvious in terms of domestic life (skin care, housework, clothing, etc.), educational/professional lives (rejections by other children, workplace discrimination, absenteeism, etc) and for leisures/sports activities. The patient's economical resources were also heavily impacted by ichthyosis with important out-of-pocket expenses.

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Continuous daily therapy with DL 5 mg is a better regimen than PRN treatment to maintain or improve QoL in subjects with CIU.