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- W2144542011 abstract "La leptospirose est une spirochétose zoonotique ubiquitaire dont l’incidence globale et en France est grandissante et probablement sous-estimée. Longtemps maladie associée au contact professionnel avec les animaux (rats et bétail) la leptospirose est devenue dans les pays développés une pathologie plutôt liée aux activités récréatives avec exposition à l’eau douce (canoë/kayak, baignade, canyoning) et à un environnement contaminé par l’urine de rongeurs excréteurs de leptospires. La leptospirose doit faire partie des diagnostics différentiels à évoquer devant une fièvre au retour de voyage en zone tropicale, particulièrement d’Asie du Sud-Est, notamment en période de saison humide. La clinique notamment à la phase initiale est peu spécifique et se résume parfois à un syndrome grippal ou « dengue-like » rendant le diagnostic difficile. Il convient alors de chercher rigoureusement les arguments cliniques (douleurs musculaires, toux, atteinte conjonctivale, ictère) et biologiques (thrombopénie, cholestase, rhabdomyolyse, élévation franche de la CRP) qui permettront d’évoquer le diagnostic et d’envisager rapidement une antibiothérapie avant l’évolution vers une forme sévère ictérohémorragique (maladie de Weil) ou respiratoire associée à une mortalité importante. Le traitement repose principalement sur l’usage de bêtalactamines injectables dans les formes sévères (céphalosporines) et sur l’amoxicilline, la doxycycline ou l’azithromycine dans les formes non sévères. Certaines formes atypiques ou tardives survenant dans la phase immunitaire de la pathologie sont à connaitre (uvéite, encéphalite). Des outils de diagnostic rapides sont à l’étude pour améliorer le diagnostic en contexte d’isolement et faciliter l’accès à un traitement précoce.Leptospirosis is a worldwide spirochetal zoonosis whose global incidence is increasing and is probably underestimated. Leptospirosis has long been associated with occupational contact with animals (rats and cattle) and has become in developed countries a pathology more related to recreational activities with exposure to fresh water (canoeing, swimming, canyoning) and to an environment contaminated by urine from leptospires excretory rodents. Leptospirosis should be one of the differential diagnoses to be considered when returning from travel to tropical areas, particularly Southeast Asia, and particularly during the rainy season. The clinical symptoms, particularly in the initial phase, are not specific and can limit to a flu-like syndrome or “dengue-like” making diagnosis often difficult. It is then necessary to look carefully for clinical (muscle pain, cough, conjunctival involvement, jaundice) and biological arguments (thrombocytopenia, cholestasis, rhabdomyolysis, frank elevation of CRP) that will help to diagnose leptospirosis and lead to quick antibiotic therapy before the progression to a severe icterohaemorrhagic (Weil's disease) or respiratory form associated with significant mortality. Treatment is based on injectable beta-lactams in severe forms (mainly cephalosporins) and amoxicillin, doxycycline or azithromycin in non-severe forms. Some atypical or delayed forms of leptospirosis occurring in the late immune phase of the disease are to know. Rapid diagnostic tools are currently being studied to improve diagnosis in remote areas and facilitate access to early treatment." @default.
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- W2144542011 date "2008-06-01" @default.
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- W2144542011 title "Variétés de présentation clinique du lymphome splénique de zone marginale : à propos de cinq observations" @default.
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- W2144542011 doi "https://doi.org/10.1016/j.revmed.2008.03.061" @default.
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