{"id":6253,"date":"2026-03-16T13:02:01","date_gmt":"2026-03-16T10:02:01","guid":{"rendered":"https:\/\/wiki.voka.io\/glossary\/ulcere-de-decubitus\/"},"modified":"2026-04-16T13:56:10","modified_gmt":"2026-04-16T10:56:10","slug":"ulcere-de-decubitus","status":"publish","type":"glossary_item","link":"https:\/\/wiki.voka.io\/fr\/glossary\/ulcere-de-decubitus\/","title":{"rendered":"Ulc\u00e8re de d\u00e9cubitus"},"content":{"rendered":"\n<p>Ulc\u00e8re de d\u00e9cubitus (du latin <em>decumbere<\/em> \u2014 s&rsquo;allonger) sont des zones de n\u00e9crose isch\u00e9mique et d&rsquo;ulc\u00e9ration des tissus mous, qui apparaissent \u00e0 la suite d&rsquo;une compression physique prolong\u00e9e, d&rsquo;un d\u00e9placement ou d&rsquo;un frottement de la peau entre une saillie osseuse et une surface ext\u00e9rieure dure. <\/p>\n\n<p>En traumatologie, c&rsquo;est la complication la plus redoutable chez les patients alit\u00e9s avec une paralysie des membres ou des fractures pelviennes s\u00e9v\u00e8res.<\/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>Le principal facteur est la pression externe sur les tissus mous, qui d\u00e9passe la pression capillaire sanguine. Si la circulation sanguine s&rsquo;arr\u00eate compl\u00e8tement pendant plus de deux heures, une hypoxie irr\u00e9versible des tissus se produit, entra\u00eenant la mort cellulaire et une n\u00e9crose subs\u00e9quente.<\/p>\n\n<p>La force de cisaillement est le second m\u00e9canisme le plus important. Cela se produit lorsqu&rsquo;un patient immobilis\u00e9 glisse lentement sur le lit : les couches superficielles de la peau restent en place en raison du frottement, tandis que les tissus profonds et les os sont d\u00e9plac\u00e9s, d\u00e9chirant les petits vaisseaux nourriciers. L&rsquo;humidit\u00e9 constante adoucit encore plus la peau, r\u00e9duisant consid\u00e9rablement ses fonctions barri\u00e8res.<\/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>La pathologie est class\u00e9e selon la profondeur de l&rsquo;atteinte allant de la rougeur superficielle de la peau \u00e0 la n\u00e9crose profonde exposant les muscles et les os. En traumatologie, il s&rsquo;agit d&rsquo;une condition extr\u00eamement dangereuse, car la plaie ouverte devient une porte d&rsquo;entr\u00e9e pour des infections nosocomiales agressives.<\/p>\n\n<p>Un escarre profond infect\u00e9 dans la r\u00e9gion sacr\u00e9e peut rapidement entra\u00eener une fusion purulente des os pelviens et le d\u00e9veloppement d&rsquo;une septic\u00e9mie fatale. C&rsquo;est pourquoi en m\u00e9decine, la pr\u00e9vention de cette condition (changements de position r\u00e9guliers du corps, matelas anti-escarres) est consid\u00e9r\u00e9e comme nettement plus importante que le traitement chirurgical ult\u00e9rieur lourd des ulc\u00e8res.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Ulc\u00e8re de d\u00e9cubitus (du latin <em>decumbere<\/em> \u2014 s&rsquo;allonger) sont des zones de n\u00e9crose isch\u00e9mique et d&rsquo;ulc\u00e9ration des tissus mous, qui apparaissent \u00e0 la suite d&rsquo;une compression physique prolong\u00e9e, d&rsquo;un d\u00e9placement ou d&rsquo;un frottement de la peau entre une saillie osseuse et une surface ext\u00e9rieure dure. <\/p>\n","protected":false},"featured_media":0,"template":"","class_list":["post-6253","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) - 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