{"id":7174,"date":"2026-06-01T13:04:04","date_gmt":"2026-06-01T10:04:04","guid":{"rendered":"https:\/\/wiki.voka.io\/glossary\/deficit-neurologico-focal\/"},"modified":"2026-06-25T12:14:14","modified_gmt":"2026-06-25T09:14:14","slug":"deficit-neurologico-focal","status":"publish","type":"glossary_item","link":"https:\/\/wiki.voka.io\/pt\/glossario\/deficit-neurologico-focal\/","title":{"rendered":"D\u00e9ficit neurol\u00f3gico focal"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">D\u00e9ficit neurol\u00f3gico focal (do latim <em>focus<\/em> \u2014 foco e <em>deficit<\/em> \u2014 falta) \u00e9 a perda espec\u00edfica ou redu\u00e7\u00e3o de uma fun\u00e7\u00e3o concreta do sistema nervoso que indica uma les\u00e3o local, anatomicamente delimitada de uma se\u00e7\u00e3o espec\u00edfica do c\u00e9rebro ou medula espinhal.<\/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\">Ao contr\u00e1rio dos sintomas gerais do c\u00e9rebro (como perda de consci\u00eancia, dor de cabe\u00e7a ou n\u00e1usea), que surgem devido ao aumento geral da press\u00e3o intracraniana ou concuss\u00e3o difusa, os sintomas focais t\u00eam um v\u00ednculo anat\u00f4mico claro. O c\u00f3rtex cerebral \u00e9 funcionalmente dividido: algumas \u00e1reas s\u00e3o respons\u00e1veis pelos movimentos, outras pela compreens\u00e3o da fala, e outras pelo vis\u00e3o.<\/p>\n\n<p class=\"wp-block-paragraph\">Quando um hematoma traum\u00e1tico, edema local ou foco de contus\u00e3o comprime ou destr\u00f3i uma zona concreta, essa fun\u00e7\u00e3o cai imediatamente. A base fisiopatol\u00f3gica \u00e9 a cessa\u00e7\u00e3o da transmiss\u00e3o de impulsos nervosos pelas vias espec\u00edficas devido \u00e0 destrui\u00e7\u00e3o mec\u00e2nica dos neur\u00f4nios ou \u00e0 sua isquemia profunda (priva\u00e7\u00e3o de oxig\u00eanio).<\/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\">A identifica\u00e7\u00e3o do d\u00e9ficit focal \u00e9 uma pedra angular do diagn\u00f3stico topogr\u00e1fico em neurologia e neurocirurgia. Permite que o m\u00e9dico neurologista determine com alta precis\u00e3o a localiza\u00e7\u00e3o do hematoma ou foco de contus\u00e3o na cavidade craniana antes de realizar a neuroimagem.<\/p>\n\n<p class=\"wp-block-paragraph\">As manifesta\u00e7\u00f5es cl\u00e1ssicas incluem: assimetria facial, fraqueza ou paralisia em metade do corpo (hemiparesia), perda de campos visuais, transtorno da fala (afasia) ou dilata\u00e7\u00e3o de uma pupila (midr\u00edase). O aparecimento ou progress\u00e3o r\u00e1pida de qualquer um desses sintomas no paciente ap\u00f3s uma les\u00e3o na cabe\u00e7a constitui uma indica\u00e7\u00e3o absoluta para uma neuroimagem de emerg\u00eancia, devido \u00e0 compress\u00e3o cerebral cont\u00ednua.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>D\u00e9ficit neurol\u00f3gico focal (do latim <em>focus<\/em> \u2014 foco e <em>deficit<\/em> \u2014 falta) \u00e9 a perda espec\u00edfica ou redu\u00e7\u00e3o de uma fun\u00e7\u00e3o concreta do sistema nervoso que indica uma les\u00e3o local, anatomicamente delimitada de uma se\u00e7\u00e3o espec\u00edfica do c\u00e9rebro ou medula espinhal.<\/p>\n","protected":false},"featured_media":0,"template":"","class_list":["post-7174","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\/ 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