{"id":3365,"date":"2026-02-26T16:55:16","date_gmt":"2026-02-26T13:55:16","guid":{"rendered":"https:\/\/wiki.voka.io\/glossary\/vaginose-bacteriana\/"},"modified":"2026-02-26T16:55:11","modified_gmt":"2026-02-26T13:55:11","slug":"vaginose-bacteriana","status":"publish","type":"glossary_item","link":"https:\/\/wiki.voka.io\/pt\/glossario\/vaginose-bacteriana\/","title":{"rendered":"Vaginose bacteriana"},"content":{"rendered":"\n<p>A vaginose bacteriana \u00e9 uma s\u00edndrome cl\u00ednica polimicrobiana de g\u00e9nese n\u00e3o inflamat\u00f3ria caracterizada por uma redu\u00e7\u00e3o dr\u00e1stica ou aus\u00eancia completa de lactoflora protetora.  <\/p>\n\n<p>\u00c9 substitu\u00eddo por uma associa\u00e7\u00e3o maci\u00e7a de microrganismos anaer\u00f3bios obrigat\u00f3rios e facultativos.<\/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>A patog\u00e9nese baseia-se na forma\u00e7\u00e3o de um biofilme polimicrobiano denso na superf\u00edcie do epit\u00e9lio vaginal. O colonizador prim\u00e1rio \u00e9 a <em>Gardnerella vaginalis<\/em>, que cria uma matriz polim\u00e9rica na qual s\u00e3o incorporados outros anaer\u00f3bios (<em>Atopobium vaginae<\/em>, <em>Mobiluncus spp.<\/em>, <em>Prevotella spp<\/em>.). Estas bact\u00e9rias produzem enzimas proteol\u00edticas, mucinases e sialidases que destroem a barreira protetora da mucosa do colo do \u00fatero e da vagina.   <\/p>\n\n<p>O odor espec\u00edfico de &#8220;peixe&#8221; deve-se \u00e0 produ\u00e7\u00e3o de aminas vol\u00e1teis (putrescina, cadaverina, trimetilamina) durante o metabolismo anaer\u00f3bico dos amino\u00e1cidos. A aus\u00eancia de rea\u00e7\u00e3o leucocit\u00e1ria (inflama\u00e7\u00e3o) deve-se \u00e0 capacidade da Gardnerella de produzir hemolisina, que destr\u00f3i os leuc\u00f3citos e bloqueia a quimiotaxia. <\/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>Significado cl\u00ednico<\/strong><\/h2>\n\n<p>\u00c9 diagnosticada com base nos crit\u00e9rios de Amsel (presen\u00e7a de corrimento branco-acinzentado homog\u00e9neo, pH &gt; 4,5, aminoteste positivo, presen\u00e7a de c\u00e9lulas-chave) ou na escala microbiol\u00f3gica de Nugent.  <\/p>\n\n<p>A vaginose bacteriana est\u00e1 associada a um elevado risco de infe\u00e7\u00e3o ascendente (<strong>ITU<\/strong>), complica\u00e7\u00f5es p\u00f3s-operat\u00f3rias (estomatite, endometrite), parto pr\u00e9-termo, rutura prematura das membranas fetais e maior suscetibilidade ao VIH e a outras IST.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>A vaginose bacteriana \u00e9 uma s\u00edndrome cl\u00ednica polimicrobiana de g\u00e9nese n\u00e3o inflamat\u00f3ria caracterizada por uma redu\u00e7\u00e3o dr\u00e1stica ou aus\u00eancia completa de lactoflora protetora.  <\/p>\n","protected":false},"featured_media":0,"template":"","class_list":["post-3365","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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