Echinococcoses require the involvement of specialists from nearly all disciplines; standardization of the terminology used in the field is thus crucial. To harmonize echinococcosis terminology on sound scientific and linguistic grounds, the World Association of Echinococcosis launched a Formal Consensus process. Under the coordination of a Steering and Writing Group (SWG), a Consultation and Rating Group (CRG) had the main missions of (1) providing input on the list of terms drafted by the SWG, taking into account the available literature and the participants\' experience; and (2) providing independent rating on all debated terms submitted to vote. The mission of the Reading and Review Group (RRG) was to give an opinion about the recommendation paper in terms of readability, acceptability and applicability. The main achievements of this process were: (1) an update of the current nomenclature of Echinococcus spp.; (2) an agreement on three names of diseases due to Echinococcus spp.: Cystic Echinococcosis (CE), Alveolar Echinococcosis (AE) and Neotropical Echinococcosis (NE), and the exclusion of all other names; (3) an agreement on the restricted use of the adjective \"hydatid\" to refer to the cyst and fluid due to E. granulosus sensu lato; and (4) an agreement on a standardized description of the surgical operations for CE, according to the \"Approach, cyst Opening, Resection, and Completeness\" (AORC) framework. In addition, 95 \"approved\" and 60 \"rejected\" terms were listed. The recommendations provided in this paper will be applicable to scientific publications in English and communication with professionals. They will be used for translation into other languages spoken in endemic countries.
UNASSIGNED: Consensus international sur la terminologie à utiliser dans le domaine des échinococcoses.
UNASSIGNED: Les échinococcoses impliquent l’intervention de spécialistes de presque toutes les disciplines et une standardisation de la terminologie utilisée dans le domaine est donc cruciale. Pour harmoniser la terminologie des échinococcoses sur des bases scientifiques et linguistiques bien étayées, l’Association Mondiale de l’Échinococcose a entrepris un processus de « Consensus Formalisé ». Sous la coordination d’un Groupe de Pilotage et de Rédaction (GPR), un Groupe de Consultation et de Classement (GCC) a reçu les missions suivantes : (1) fournir un avis sur une liste de termes établie par le GPR, en prenant en compte les références scientifiques disponibles et l’expérience des participants ; (2) fournir un classement indépendant sur tous les termes débattus et soumis au vote. La mission du Groupe de Lecture et de Revue critique (GLR) était de donner un avis formel sur l’article de recommandations en termes de facilité de lecture, d’acceptabilité et d’applicabilité. Les principales avancées obtenues au terme de ce processus sont les suivantes: (1) une actualisation de la nomenclature actuelle des espèces d’Echinococcus ; (2) un accord sur les noms des trois principales maladies humaines dues aux espèces d’Echinococcus : l’échinococcose kystique (EK), l’échinococcose alvéolaire (EA) et l’échinococcose néotropicale (EN), à l’exclusion de toute autre dénomination ; (3) la restriction de l’usage de l’adjectif « hydatique » au kyste et au liquide/fluide produit par E. granulosus sensu lato ; et (4) une description standardisée des interventions chirurgicales pour l’EK, selon le système AORC (pour « Approche », « Ouverture », « Résection » et « Complétude »). De plus, 95 termes « approuvés » et 60 termes « rejetés » ont été listés. Les recommandations données dans cet article seront applicables aux publications scientifiques en anglais et à la communication avec les professionnels. Elles seront utilisées pour la traduction dans les autres langues parlées dans les zones d’endémie.

The Spanish Society of Infectious Diseases and Clinical Microbiology (SEIMC), the Spanish Society of Tropical Medicine and International Health (SEMTSI), the Spanish Association of Surgeons (AEC), the Spanish Society of Pneumology and Thoracic Surgery (SEPAR), the Spanish Society of Thoracic Surgery (SECT), the Spanish Society of Vascular and Interventional Radiology (SERVEI), and the Spanish Society of Paediatric Infectious Diseases (SEIP) considered it pertinent to issue a consensus statement on the management of cystic echinococcosis (CE) to guide healthcare professionals in the care of patients with CE. Specialists from several fields (clinicians, surgeons, radiologists, microbiologists, and parasitologists) identified the most clinically relevant questions and developed this Consensus Statement, evaluating the available evidence-based data to propose a series of recommendations on the management of this disease. This Consensus Statement is accompanied by the corresponding references on which these recommendations are based. Prior to publication, the manuscript was open for comments and suggestions from the members of the SEIMC and the scientific committees and boards of the various societies involved.

The earlier recommendations of the WHO-Informal Working Group on Echinococcosis (WHO-IWGE) for the treatment of human echinococcosis have had considerable impact in different settings worldwide, but the last major revision was published more than 10 years ago. Advances in classification and treatment of echinococcosis prompted experts from different continents to review the current literature, discuss recent achievements and provide a consensus on diagnosis, treatment and follow-up. Among the recognized species, two are of medical importance -Echinococcus granulosus and Echinococcus multilocularis - causing cystic echinococcosis (CE) and alveolar echinococcosis (AE), respectively. For CE, consensus has been obtained on an image-based, stage-specific approach, which is helpful for choosing one of the following options: (1) percutaneous treatment, (2) surgery, (3) anti-infective drug treatment or (4) watch and wait. Clinical decision-making depends also on setting-specific aspects. The usage of an imaging-based classification system is highly recommended. For AE, early diagnosis and radical (tumour-like) surgery followed by anti-infective prophylaxis with albendazole remains one of the key elements. However, most patients with AE are diagnosed at a later stage, when radical surgery (distance of larval to liver tissue of >2cm) cannot be achieved. The backbone of AE treatment remains the continuous medical treatment with albendazole, and if necessary, individualized interventional measures. With this approach, the prognosis can be improved for the majority of patients with AE. The consensus of experts under the aegis of the WHO-IWGE will help promote studies that provide missing evidence to be included in the next update.

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