{"id":6671,"date":"2026-04-16T13:54:13","date_gmt":"2026-04-16T10:54:13","guid":{"rendered":"https:\/\/wiki.dev.voka.io\/glossary\/oedeme-cerebral\/"},"modified":"2026-05-04T16:13:03","modified_gmt":"2026-05-04T13:13:03","slug":"oedeme-cerebral","status":"publish","type":"glossary_item","link":"https:\/\/wiki.dev.voka.io\/fr\/glossaire\/oedeme-cerebral\/","title":{"rendered":"\u0152d\u00e8me c\u00e9r\u00e9bral"},"content":{"rendered":"\n<p>\u0152d\u00e8me c\u00e9r\u00e9bral (du gr. <em>oidema<\/em> \u2014 gonflement, \u0153d\u00e8me) \u2014 c&rsquo;est un processus pathologique caract\u00e9ris\u00e9 par une accumulation excessive de liquide dans les tissus c\u00e9r\u00e9braux. Il conduit \u00e0 une augmentation rapide du volume des tissus c\u00e9r\u00e9braux et \u00e0 une augmentation dangereuse de la pression intracr\u00e2nienne.<\/p>\n\n<h2 class=\"wp-block-heading\" id=\"h-&#x44D;&#x442;&#x438;&#x43E;&#x43B;&#x43E;&#x433;&#x438;&#x44F;-&#x438;-&#x43F;&#x430;&#x442;&#x43E;&#x444;&#x438;&#x437;&#x438;&#x43E;&#x43B;&#x43E;&#x433;&#x438;&#x44F;\"><strong>\u00c9tiologie et physiopathologie<\/strong><\/h2>\n\n<p>En neuro-traumatologie, deux m\u00e9canismes principaux de d\u00e9veloppement de cette pathologie sont distingu\u00e9s. L&rsquo;\u0153d\u00e8me vasog\u00e9nique survient \u00e0 la suite de dommages m\u00e9caniques directs aux parois capillaires (par exemple, lors d&rsquo;une contusion c\u00e9r\u00e9brale). Dans ce cas, la partie liquide du sang avec les prot\u00e9ines s&rsquo;infiltre sans obstacle \u00e0 travers les vaisseaux dans l&rsquo;espace intercellulaire.<\/p>\n\n<p>L&rsquo;\u0153d\u00e8me cytotoxique se d\u00e9veloppe en raison d&rsquo;une privation aigu\u00eb d&rsquo;oxyg\u00e8ne des cellules (isch\u00e9mie). En raison d&rsquo;un manque d&rsquo;\u00e9nergie, les pompes membranaires cellulaires \u00e9chouent. En cons\u00e9quence, l&rsquo;eau se pr\u00e9cipite directement \u00e0 l&rsquo;int\u00e9rieur des neurones eux-m\u00eames, provoquant leur gonflement s\u00e9v\u00e8re et leur destruction de l&rsquo;int\u00e9rieur. Dans la pratique, lors d&rsquo;un traumatisme grave, ces deux m\u00e9canismes sont d\u00e9clench\u00e9s simultan\u00e9ment, se renfor\u00e7ant mutuellement.<\/p>\n\n<h2 class=\"wp-block-heading\" id=\"h-&#x43A;&#x43B;&#x438;&#x43D;&#x438;&#x447;&#x435;&#x441;&#x43A;&#x43E;&#x435;-&#x437;&#x43D;&#x430;&#x447;&#x435;&#x43D;&#x438;&#x435;\"><strong>Importance clinique<\/strong><\/h2>\n\n<p>Cliniquement, l&rsquo;\u0153d\u00e8me se manifeste par un mal de t\u00eate intense et oppressant, des vomissements r\u00e9p\u00e9t\u00e9s (qui n&rsquo;apportent aucun soulagement), des troubles visuels et une d\u00e9pression progressive de la conscience jusqu&rsquo;au coma. Le principal danger de cet \u00e9tat r\u00e9side dans le d\u00e9veloppement in\u00e9vitable du syndrome de dislocation \u2014 o\u00f9 il y a un engagement physique du cerveau \u00e0 travers les ouvertures naturelles du cr\u00e2ne.<\/p>\n\n<p>Le traitement est effectu\u00e9 exclusivement en r\u00e9animation. Il inclut un strict contr\u00f4le respiratoire (passage \u00e0 la ventilation artificielle), l&rsquo;administration de puissants diur\u00e9tiques osmotiques pour forcer l&rsquo;\u00e9limination de l&rsquo;exc\u00e8s de liquide tissulaire et une s\u00e9dation m\u00e9dicale profonde. Dans les cas critiques o\u00f9 les m\u00e9dicaments sont inefficaces, les neurochirurgiens effectuent une craniotomie d\u00e9compressive d&rsquo;urgence.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u0152d\u00e8me c\u00e9r\u00e9bral (du gr. <em>oidema<\/em> \u2014 gonflement, \u0153d\u00e8me) \u2014 c&rsquo;est un processus pathologique caract\u00e9ris\u00e9 par une accumulation excessive de liquide dans les tissus c\u00e9r\u00e9braux. Il conduit \u00e0 une augmentation rapide du volume des tissus c\u00e9r\u00e9braux et \u00e0 une augmentation dangereuse de la pression intracr\u00e2nienne.<\/p>\n","protected":false},"featured_media":0,"template":"","class_list":["post-6671","glossary_item","type-glossary_item","status-publish","hentry"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v25.0 (Yoast SEO v26.5) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>\u0152d\u00e8me c\u00e9r\u00e9bral : d\u00e9finition m\u00e9dicale et description | Voka Wiki<\/title>\n<meta name=\"description\" content=\"\u0152d\u00e8me c\u00e9r\u00e9bral (du gr. oidema \u2014 gonflement, \u0153d\u00e8me) \u2014 c&#039;est un processus pathologique caract\u00e9ris\u00e9 par une accumulation excessive de liquide dans les tissus c\u00e9r\u00e9braux. 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