{"id":6282,"date":"2026-03-16T13:02:08","date_gmt":"2026-03-16T10:02:08","guid":{"rendered":"https:\/\/wiki.dev.voka.io\/glossary\/paresthesie\/"},"modified":"2026-04-16T13:55:26","modified_gmt":"2026-04-16T10:55:26","slug":"paresthesie","status":"publish","type":"glossary_item","link":"https:\/\/wiki.dev.voka.io\/fr\/glossaire\/paresthesie\/","title":{"rendered":"Paresth\u00e9sie"},"content":{"rendered":"\n<p>La paresth\u00e9sie (du grec <em>para<\/em> \u2014 \u00e0 c\u00f4t\u00e9, d\u00e9viation et <em>aisthesis<\/em> \u2014 sensation) est une sensation d\u00e9sagr\u00e9able et spontan\u00e9e de la peau, sans pr\u00e9sence apparente de stimuli physiques externes. <\/p>\n\n<p>Les patients d\u00e9crivent souvent ce ph\u00e9nom\u00e8ne comme une sensation de \u00ab\u00a0fourmillements\u00a0\u00bb, de piq\u00fbres d&rsquo;aiguilles, de br\u00fblure ou de l\u00e9g\u00e8re d\u00e9charge \u00e9lectrique.<\/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>La base physiopathologique de ce sympt\u00f4me est l&rsquo;irritation locale des fibres sensitives des nerfs p\u00e9riph\u00e9riques, des racines nerveuses ou des voies sensorielles de la moelle spinale. Un traumatisme m\u00e9canique entra\u00eene une modification de la perm\u00e9abilit\u00e9 des canaux ioniques de la membrane de l&rsquo;axone, ce qui g\u00e9n\u00e8re des impulsions nerveuses ectopiques (incorrectes, chaotiques).<\/p>\n\n<p>En pratique traumatologique, la cause la plus courante de la paresth\u00e9sie est la compression m\u00e9canique aigu\u00eb du nerf par un fragment osseux d\u00e9plac\u00e9, un h\u00e9matome croissant ou un \u0153d\u00e8me des tissus. Le sympt\u00f4me peut \u00e9galement \u00eatre caus\u00e9 par une isch\u00e9mie transitoire du tronc nerveux, par exemple en raison d&rsquo;une mauvaise utilisation prolong\u00e9e d&rsquo;un garrot sur un membre.<\/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 paresth\u00e9sie est un marqueur clinique pr\u00e9coce extr\u00eamement important de la l\u00e9sion compliqu\u00e9e-isch\u00e9mique du syst\u00e8me nerveux. Sa localisation pr\u00e9cise sur le corps permet au m\u00e9decin de d\u00e9terminer avec une grande pr\u00e9cision le niveau de l&rsquo;atteinte du nerf ou de la racine avant de proc\u00e9der \u00e0 des examens instrumentaux.<\/p>\n\n<p>Il est important de distinguer clairement la paresth\u00e9sie de l&rsquo;hyperesth\u00e9sie (sensibilit\u00e9 douloureusement accrue au toucher normal) et de l&rsquo;anesth\u00e9sie (absence compl\u00e8te de sensations). Une paresth\u00e9sie qui persiste longtemps apr\u00e8s un traumatisme est un signe d&rsquo;alerte n\u00e9cessitant une lib\u00e9ration chirurgicale imm\u00e9diate du nerf pour \u00e9viter sa d\u00e9g\u00e9n\u00e9rescence irr\u00e9versible.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>La paresth\u00e9sie (du grec <em>para<\/em> \u2014 \u00e0 c\u00f4t\u00e9, d\u00e9viation et <em>aisthesis<\/em> \u2014 sensation) est une sensation d\u00e9sagr\u00e9able et spontan\u00e9e de la peau, sans pr\u00e9sence apparente de stimuli physiques externes. <\/p>\n","protected":false},"featured_media":0,"template":"","class_list":["post-6282","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>Paresth\u00e9sie : d\u00e9finition m\u00e9dicale et description | Voka Wiki<\/title>\n<meta name=\"description\" content=\"La 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