{"id":7188,"date":"2026-06-01T13:04:06","date_gmt":"2026-06-01T10:04:06","guid":{"rendered":"https:\/\/wiki.voka.io\/glossary\/amnesia-retrograda\/"},"modified":"2026-06-25T12:13:52","modified_gmt":"2026-06-25T09:13:52","slug":"amnesia-retrograda","status":"publish","type":"glossary_item","link":"https:\/\/wiki.voka.io\/pt\/glossario\/amnesia-retrograda\/","title":{"rendered":"Amn\u00e9sia retr\u00f3grada"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">Amn\u00e9sia retr\u00f3grada (do latim <em>retro<\/em> \u2014 para tr\u00e1s, <em>gradus<\/em> \u2014 passo e do grego <em>amnesia<\/em> \u2014 esquecimento) \u00e9 um dist\u00farbio espec\u00edfico de mem\u00f3ria, em que o indiv\u00edduo perde total ou parcialmente a capacidade de lembrar eventos ocorridos imediatamente antes de sofrer um traumatismo craniano.<\/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>Etiologia e fisiopatologia<\/strong><\/h2>\n\n<p class=\"wp-block-paragraph\">A forma\u00e7\u00e3o de qualquer mem\u00f3ria \u00e9 um processo eletroqu\u00edmico complexo. Primeiro, a informa\u00e7\u00e3o entra na mem\u00f3ria de curto prazo, e ent\u00e3o as estruturas do c\u00e9rebro (primordialmente o hipocampo) recodificam-na e armazenam-na em mem\u00f3ria de longo prazo. O processo de transi\u00e7\u00e3o \u00e9 chamado de consolida\u00e7\u00e3o da mem\u00f3ria e requer um tempo determinado.<\/p>\n\n<p class=\"wp-block-paragraph\">No momento de um forte golpe na cabe\u00e7a, uma poderosa impulsos bioel\u00e9tricos e metab\u00f3licos se espalham pelo c\u00e9rebro. Devido \u00e0 concuss\u00e3o cerebral abrupta, o processo de consolida\u00e7\u00e3o \u00e9 instantaneamente e grosseiramente interrompido. Eventos que ocorreram minutos ou horas antes da les\u00e3o simplesmente n\u00e3o conseguem passar pela fase de consolida\u00e7\u00e3o. Ao contr\u00e1rio das mem\u00f3rias antigas e bem estabelecidas, que permanecem intactas, informa\u00e7\u00f5es recentes s\u00e3o apagadas.<\/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>Import\u00e2ncia cl\u00ednica<\/strong><\/h2>\n\n<p class=\"wp-block-paragraph\">Este tipo de amn\u00e9sia \u00e9 o principal e mais confi\u00e1vel sinal cl\u00ednico de concuss\u00e3o cerebral. O paciente pode estar consciente, respondendo adequadamente a perguntas, por\u00e9m ele pode n\u00e3o se lembrar do momento do impacto ou das circunst\u00e2ncias que o antecederam.<\/p>\n\n<p class=\"wp-block-paragraph\">A dura\u00e7\u00e3o do intervalo de tempo apagado da mem\u00f3ria (de alguns segundos a v\u00e1rios dias) correlaciona diretamente com a gravidade da les\u00e3o sofrida. \u00c9 importante entender que as mem\u00f3rias perdidas do momento da les\u00e3o geralmente nunca retornam. Os m\u00e9dicos n\u00e3o tentam tratar a pr\u00f3pria amn\u00e9sia; ela serve apenas como um importante marcador diagn\u00f3stico para avaliar o grau de dano ao sistema nervoso.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Amn\u00e9sia retr\u00f3grada (do latim <em>retro<\/em> \u2014 para tr\u00e1s, <em>gradus<\/em> \u2014 passo e do grego <em>amnesia<\/em> \u2014 esquecimento) \u00e9 um dist\u00farbio espec\u00edfico de mem\u00f3ria, em que o indiv\u00edduo perde total ou parcialmente a capacidade de lembrar eventos ocorridos imediatamente antes de sofrer um traumatismo craniano.<\/p>\n","protected":false},"featured_media":0,"template":"","class_list":["post-7188","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 v27.8) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Amn\u00e9sia retr\u00f3grada: defini\u00e7\u00e3o m\u00e9dica e 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