{"id":6286,"date":"2026-03-16T13:02:08","date_gmt":"2026-03-16T10:02:08","guid":{"rendered":"https:\/\/wiki.dev.voka.io\/glossary\/parestesia\/"},"modified":"2026-04-16T13:55:30","modified_gmt":"2026-04-16T10:55:30","slug":"parestesia","status":"publish","type":"glossary_item","link":"https:\/\/wiki.dev.voka.io\/es\/glosario\/parestesia\/","title":{"rendered":"Parestesia"},"content":{"rendered":"\n<p>La parestesia (del griego <em>para<\/em> \u2014 cerca, desviaci\u00f3n y <em>aisthesis<\/em> \u2014 sensaci\u00f3n) es una sensaci\u00f3n desagradable cualitativamente alterada que surge de manera espont\u00e1nea en la piel, sin ning\u00fan est\u00edmulo f\u00edsico externo visible. <\/p>\n\n<p>Los pacientes frecuentemente describen este fen\u00f3meno como \u00abhormigueo\u00bb, pinchazos, ardor o el paso de una corriente el\u00e9ctrica suave.<\/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>Etiolog\u00eda y fisiopatolog\u00eda<\/strong><\/h2>\n\n<p>La base patofisiol\u00f3gica de este s\u00edntoma es la irritaci\u00f3n local de las fibras sensoriales de un nervio perif\u00e9rico, ra\u00edz nerviosa o las v\u00edas sensoriales en la m\u00e9dula espinal. La acci\u00f3n mec\u00e1nica provoca un cambio en la permeabilidad de los canales i\u00f3nicos de la membrana del ax\u00f3n y la generaci\u00f3n de impulsos nerviosos ect\u00f3picos (irregulares, ca\u00f3ticos).<\/p>\n\n<p>En la pr\u00e1ctica traumatol\u00f3gica, la causa m\u00e1s com\u00fan de parestesia es la compresi\u00f3n mec\u00e1nica aguda de un nervio por fragmentos \u00f3seos desplazados, un hematoma creciente o edema tisular. El s\u00edntoma tambi\u00e9n puede ser causado por una isquemia transitoria del tronco nervioso, como en la aplicaci\u00f3n prolongada e inadecuada de un torniquete hemost\u00e1tico en una extremidad.<\/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>Importancia cl\u00ednica<\/strong><\/h2>\n\n<p>La parestesia es un marcador cl\u00ednico temprano de suma importancia para la lesi\u00f3n compresivo-isqu\u00e9mica del sistema nervioso. Su localizaci\u00f3n estricta en el cuerpo permite al m\u00e9dico determinar con alta precisi\u00f3n (diagnosticar t\u00f3picamente) el nivel del nervio o ra\u00edz afectada incluso antes de realizar estudios instrumentales.<\/p>\n\n<p>Es crucial distinguir claramente la parestesia de la hiperestesia (sensibilidad aumentada dolorosamente al tacto normal) y la anestesia (p\u00e9rdida completa de cualquier sensaci\u00f3n). La parestesia persistente despu\u00e9s de un trauma es una se\u00f1al de advertencia que requiere la liberaci\u00f3n quir\u00fargica inmediata del nervio para evitar su muerte irreversible.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>La parestesia (del griego <em>para<\/em> \u2014 cerca, desviaci\u00f3n y <em>aisthesis<\/em> \u2014 sensaci\u00f3n) es una sensaci\u00f3n desagradable cualitativamente alterada que surge de manera espont\u00e1nea en la piel, sin ning\u00fan est\u00edmulo f\u00edsico externo visible. <\/p>\n","protected":false},"featured_media":0,"template":"","class_list":["post-6286","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>Parestesia: definici\u00f3n m\u00e9dica y descripci\u00f3n | Voka Wiki<\/title>\n<meta name=\"description\" content=\"La parestesia (del griego para 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