129 research outputs found

    Anaesth Crit Care Pain Med

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    PURPOSE: To provide recommendations for the anaesthetic and peri-operative management for thrombectomy procedure in stroke patients DESIGN: A consensus committee of 15 experts issued from the French Society of Anaesthesia and Intensive Care Medicine (SociĂ©tĂ© Française d'AnesthĂ©sie et RĂ©animation, SFAR), the Association of French-language Neuro-Anaesthetists (Association des Neuro-AnesthĂ©sistes RĂ©animateurs de Langue Francaise, ANARLF), the French Neuro-Vascular Society (SociĂ©tĂ© Francaise de Neuro-Vasculaire, SFNV), the French Neuro-Radiology Society (SociĂ©tĂ© Francaise de Neuro-Radiologie, SFNR) and the French Study Group on Haemostasis and Thrombosis (Groupe Français d'Études sur l'HĂ©mostase et la Thrombose, GFHT) was convened, under the supervision of two expert coordinators from the SFAR and the ANARLF. A formal conflict-of-interest policy was developed at the outset of the process and enforced throughout. The entire guideline elaboration process was conducted independently of any industry funding. The authors were required to follow the principles of the Grading of Recommendations Assessment, Development and Evaluation (GRADE) system to guide their assessment of quality of evidence. METHODS: Four fields were defined prior to the literature search: (1) Peri-procedural management, (2) Prevention and management of secondary brain injuries, (3) Management of antiplatelet and anticoagulant treatments, (4) Post-procedural management and orientation of the patient. Questions were formulated using the PICO format (Population, Intervention, Comparison, and Outcomes) and updated as needed. Analysis of the literature was then conducted and the recommendations were formulated according to the GRADE methodology. RESULTS: The SFAR/ANARLF/SFNV/SFNR/GFHT guideline panel drew up 18 recommendations regarding anaesthetic management of mechanical thrombectomy procedures. Due to a lack of data in the literature allowing to conclude with high certainty on relevant clinical outcomes, the experts decided to formulate these guidelines as "Professional Practice Recommendations" (PPR) rather than "Formalized Expert Recommendations". After two rounds of rating and several amendments, a strong agreement was reached on 100% of the recommendations. No recommendation could be formulated for two questions. CONCLUSIONS: Strong agreement among experts was reached to provide a sizable number of recommendations aimed at optimising anaesthetic management for thrombectomy in patients suffering from stroke

    Khresmoi Professional: Multilingual Semantic Search for Medical Professionals

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    There is increasing interest in and need for innovative solutions to medical search. In this paper we present the EU funded Khresmoi medical search and access system, currently in year 3 of 4 of development across 12 partners . The Khresmoi system uses a component based architecture housed in the cloud to allow for the development of several innovative applications to support target users medical information needs. The Khresmoi search systems based on this architecture have been designed to support the multilingual and multimod al information needs of three target groups the general public, general practitioners and consultant radiologists. In this paper we focus on the presentation of the systems to support the latter two groups using semantic, multilingual text and image based (including 2D and 3D radiology images) search

    Muscle squelettique et ischémie-reperfusion expérimentale des membres : mécanismes impliqués dans la protection ou les effets délétÚres de la cyclosporine et facteurs limitant les conditionnements pharmacologique et ischémique

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    Peripheral arterial disease and many surgical procedures (requiring vascular clamping or tourniquet application) induce severe skeletal muscle ischemia-reperfusion (IR) injuries. As a result, using experimental hind limb ischemia-reperfusion models, our goals were: ° To test a pharmacologic substitute to ischemic postconditioning by using cyclosporine A, that acts on a very downstream step of IR injury cascade by binding to cyclophilin D and inhibiting mitochondrial transition pore opening. We wondered if cyclosporine could alleviate mitochondrial dysfunction and reduce ROS production in skeletal muscles submitted to IR. ° To determine how diabetes and senescence would influence cyclosporine A protective effects. In conclusion, the protective effects of pharmacologic postconditioning with cyclosporine A seem to critically depend on the model under study. A variable and narrow dose-effect relationship is likely and makes it necessary to perform a dose finding study in every pathologic model. Considering the narrow relationships between mitochondrial protection and oxidative stress, combing cyclosporine A postconditioning with antioxidant therapy may restore a more robust protective effect but this hypothesis has to be validated.Le muscle striĂ© squelettique subit de graves lĂ©sions d’ischĂ©mie-reperfusion (IR) au cours de la progression de l’artĂ©riopathie oblitĂ©rante des membres infĂ©rieurs et lors d’interventions chirurgicales qui nĂ©cessitent l’interruption transitoire du flux sanguin dans les artĂšres des membres. Dans ce contexte, nos objectifs Ă©taient de mettre Ă  profit deux modĂšles expĂ©rimentaux d’IR des membres infĂ©rieurs par clampage aortique et garrotage unilatĂ©ral pour : ° tester l’efficacitĂ© d’une alternative mĂ©dicamenteuse au postconditionnement ischĂ©mique par l’utilisation de la cyclosporine A (CsA). En se liant Ă  la cyclophiline D, la CsA empĂȘche l’ouverture du pore de transition mitochondrial (mPTP) Ă  un niveau trĂšs distal de la cascade d’évĂšnements qui conduit Ă  la nĂ©crose aprĂšs IR. ° dĂ©terminer de quelle façon deux comorbiditĂ©s frĂ©quemment retrouvĂ©es chez des patients souffrant d’atteinte artĂ©rielle (le diabĂšte et l’ñge) influencent l’effet de la cyclosporine. Avec les protocoles de conditionnement et aux doses que nous avons utilisĂ©es, la cyclosporine a des effets diffĂ©rents sur les consĂ©quences musculaires de l’ischĂ©mie-reperfusion des membres infĂ©rieurs, dĂ©pendant de la pathologie sous-jacente des animaux Ă©tudiĂ©s. Il semble intĂ©ressant d’étudier l’effet dose-rĂ©ponse de la cyclosporine A pour dĂ©terminer l’intervalle thĂ©rapeutique optimal, celui-ci pouvant ĂȘtre diffĂ©rent chez l’animal sain et pathologique. D’autre part, Ă©tant donnĂ© l’importance considĂ©rable du stress oxydant chez les animaux diabĂ©tiques et sĂ©nescents, la co-administration de cyclosporine et d’un antioxydant au moment de la reperfusion pourrait rĂ©tablir une protection

    Skeletal muscle and experimental ischemia-reperfusion members : mechanisms involved in the protective effects of cyclosporine and the limiting factors of pharmacologic and ischemic postconditioning

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    Le muscle striĂ© squelettique subit de graves lĂ©sions d’ischĂ©mie-reperfusion (IR) au cours de la progression de l’artĂ©riopathie oblitĂ©rante des membres infĂ©rieurs et lors d’interventions chirurgicales qui nĂ©cessitent l’interruption transitoire du flux sanguin dans les artĂšres des membres. Dans ce contexte, nos objectifs Ă©taient de mettre Ă  profit deux modĂšles expĂ©rimentaux d’IR des membres infĂ©rieurs par clampage aortique et garrotage unilatĂ©ral pour : ° tester l’efficacitĂ© d’une alternative mĂ©dicamenteuse au postconditionnement ischĂ©mique par l’utilisation de la cyclosporine A (CsA). En se liant Ă  la cyclophiline D, la CsA empĂȘche l’ouverture du pore de transition mitochondrial (mPTP) Ă  un niveau trĂšs distal de la cascade d’évĂšnements qui conduit Ă  la nĂ©crose aprĂšs IR. ° dĂ©terminer de quelle façon deux comorbiditĂ©s frĂ©quemment retrouvĂ©es chez des patients souffrant d’atteinte artĂ©rielle (le diabĂšte et l’ñge) influencent l’effet de la cyclosporine. Avec les protocoles de conditionnement et aux doses que nous avons utilisĂ©es, la cyclosporine a des effets diffĂ©rents sur les consĂ©quences musculaires de l’ischĂ©mie-reperfusion des membres infĂ©rieurs, dĂ©pendant de la pathologie sous-jacente des animaux Ă©tudiĂ©s. Il semble intĂ©ressant d’étudier l’effet dose-rĂ©ponse de la cyclosporine A pour dĂ©terminer l’intervalle thĂ©rapeutique optimal, celui-ci pouvant ĂȘtre diffĂ©rent chez l’animal sain et pathologique. D’autre part, Ă©tant donnĂ© l’importance considĂ©rable du stress oxydant chez les animaux diabĂ©tiques et sĂ©nescents, la co-administration de cyclosporine et d’un antioxydant au moment de la reperfusion pourrait rĂ©tablir une protection.Peripheral arterial disease and many surgical procedures (requiring vascular clamping or tourniquet application) induce severe skeletal muscle ischemia-reperfusion (IR) injuries. As a result, using experimental hind limb ischemia-reperfusion models, our goals were: ° To test a pharmacologic substitute to ischemic postconditioning by using cyclosporine A, that acts on a very downstream step of IR injury cascade by binding to cyclophilin D and inhibiting mitochondrial transition pore opening. We wondered if cyclosporine could alleviate mitochondrial dysfunction and reduce ROS production in skeletal muscles submitted to IR. ° To determine how diabetes and senescence would influence cyclosporine A protective effects. In conclusion, the protective effects of pharmacologic postconditioning with cyclosporine A seem to critically depend on the model under study. A variable and narrow dose-effect relationship is likely and makes it necessary to perform a dose finding study in every pathologic model. Considering the narrow relationships between mitochondrial protection and oxidative stress, combing cyclosporine A postconditioning with antioxidant therapy may restore a more robust protective effect but this hypothesis has to be validated

    Skeletal muscle and experimental ischemia-reperfusion members : mechanisms involved in the protective effects of cyclosporine and the limiting factors of pharmacologic and ischemic postconditioning

    No full text
    Le muscle striĂ© squelettique subit de graves lĂ©sions d’ischĂ©mie-reperfusion (IR) au cours de la progression de l’artĂ©riopathie oblitĂ©rante des membres infĂ©rieurs et lors d’interventions chirurgicales qui nĂ©cessitent l’interruption transitoire du flux sanguin dans les artĂšres des membres. Dans ce contexte, nos objectifs Ă©taient de mettre Ă  profit deux modĂšles expĂ©rimentaux d’IR des membres infĂ©rieurs par clampage aortique et garrotage unilatĂ©ral pour : ° tester l’efficacitĂ© d’une alternative mĂ©dicamenteuse au postconditionnement ischĂ©mique par l’utilisation de la cyclosporine A (CsA). En se liant Ă  la cyclophiline D, la CsA empĂȘche l’ouverture du pore de transition mitochondrial (mPTP) Ă  un niveau trĂšs distal de la cascade d’évĂšnements qui conduit Ă  la nĂ©crose aprĂšs IR. ° dĂ©terminer de quelle façon deux comorbiditĂ©s frĂ©quemment retrouvĂ©es chez des patients souffrant d’atteinte artĂ©rielle (le diabĂšte et l’ñge) influencent l’effet de la cyclosporine. Avec les protocoles de conditionnement et aux doses que nous avons utilisĂ©es, la cyclosporine a des effets diffĂ©rents sur les consĂ©quences musculaires de l’ischĂ©mie-reperfusion des membres infĂ©rieurs, dĂ©pendant de la pathologie sous-jacente des animaux Ă©tudiĂ©s. Il semble intĂ©ressant d’étudier l’effet dose-rĂ©ponse de la cyclosporine A pour dĂ©terminer l’intervalle thĂ©rapeutique optimal, celui-ci pouvant ĂȘtre diffĂ©rent chez l’animal sain et pathologique. D’autre part, Ă©tant donnĂ© l’importance considĂ©rable du stress oxydant chez les animaux diabĂ©tiques et sĂ©nescents, la co-administration de cyclosporine et d’un antioxydant au moment de la reperfusion pourrait rĂ©tablir une protection.Peripheral arterial disease and many surgical procedures (requiring vascular clamping or tourniquet application) induce severe skeletal muscle ischemia-reperfusion (IR) injuries. As a result, using experimental hind limb ischemia-reperfusion models, our goals were: ° To test a pharmacologic substitute to ischemic postconditioning by using cyclosporine A, that acts on a very downstream step of IR injury cascade by binding to cyclophilin D and inhibiting mitochondrial transition pore opening. We wondered if cyclosporine could alleviate mitochondrial dysfunction and reduce ROS production in skeletal muscles submitted to IR. ° To determine how diabetes and senescence would influence cyclosporine A protective effects. In conclusion, the protective effects of pharmacologic postconditioning with cyclosporine A seem to critically depend on the model under study. A variable and narrow dose-effect relationship is likely and makes it necessary to perform a dose finding study in every pathologic model. Considering the narrow relationships between mitochondrial protection and oxidative stress, combing cyclosporine A postconditioning with antioxidant therapy may restore a more robust protective effect but this hypothesis has to be validated
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