{"id":5141,"date":"2025-05-05T15:47:54","date_gmt":"2025-05-05T18:47:54","guid":{"rendered":"https:\/\/sbrv.org\/paciente\/?post_type=doenca&#038;p=5141"},"modified":"2025-05-05T15:47:56","modified_gmt":"2025-05-05T18:47:56","slug":"dusn","status":"publish","type":"doenca","link":"https:\/\/sbrv.org\/paciente\/doencas-retina\/dusn\/","title":{"rendered":"DUSN (Diffuse Unilateral Subacute Neuroretinitis): O que \u00e9, Sintomas, Diagn\u00f3stico e Tratamentos | SBRV"},"content":{"rendered":"\n<p>\nA Neurorretinite unilateral subaguda difusa (DUSN) \u00e9 uma condi\u00e7\u00e3o causada por nematoides migrando sob a retina, provocando inflama\u00e7\u00e3o cr\u00f4nica e degenera\u00e7\u00e3o das estruturas neurorretinianas. Acomete principalmente crian\u00e7as e adultos jovens em regi\u00f5es tropicais.\n<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">O QUE \u00c9<\/h2>\n\n\n\n<p>\n\u00c9 uma infec\u00e7\u00e3o ocular causada por larvas de helmintos (como <em>Ancylostoma<\/em>, <em>Toxocara<\/em> e <em>Baylisascaris<\/em>), que atingem o espa\u00e7o sub-retiniano, gerando inflama\u00e7\u00e3o cr\u00f4nica e perda progressiva e unilateral da vis\u00e3o.\n<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">CAUSAS E FATORES DE RISCO<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Ingest\u00e3o de ovos de parasitas presentes em solo ou areia contaminada (ex: caixas de areia).<\/li>\n\n\n\n<li>Contato com filhotes de c\u00e3es, especialmente f\u00eameas prenhas ou lactantes n\u00e3o vermifugadas.<\/li>\n\n\n\n<li>Exposi\u00e7\u00e3o em ambientes rurais ou tropicais com m\u00e1s condi\u00e7\u00f5es sanit\u00e1rias.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">SINTOMAS<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Vis\u00e3o emba\u00e7ada em apenas um dos olhos.<\/li>\n\n\n\n<li>Moscas volantes (floaters) e fotopsias (flashes).<\/li>\n\n\n\n<li>Escotomas migrat\u00f3rios (\u00e1reas de perda visual que mudam de posi\u00e7\u00e3o).<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">DIAGN\u00d3STICO<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Fundoscopia:<\/strong> les\u00f5es esbranqui\u00e7adas localizadas ao redor da larva. Em parasitas maiores (mais comuns no hemisf\u00e9rio norte), podem ser observadas trilhas de migra\u00e7\u00e3o. Em est\u00e1gios tardios, aparecem pigmenta\u00e7\u00f5es puntiformes, palidez do disco \u00f3ptico e afilamento dos vasos retinianos.<\/li>\n\n\n\n<li><strong>OCT:<\/strong> mostra atrofia das camadas retinianas.<\/li>\n\n\n\n<li><strong>Sorologia:<\/strong> pesquisa de anticorpos, especialmente para <em>Toxocara<\/em>.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">TRATAMENTO<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Fotocoagula\u00e7\u00e3o a laser direcionada ao verme vis\u00edvel.<\/li>\n\n\n\n<li>Albendazol 400 mg\/dia por 4 semanas.<\/li>\n\n\n\n<li>Uso de corticosteroides para controle da inflama\u00e7\u00e3o ocular.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">PROGN\u00d3STICO<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Melhora visual parcial quando tratada precocemente.<\/li>\n\n\n\n<li>Possibilidade de cicatrizes retinianas permanentes.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">PREVEN\u00c7\u00c3O E CUIDADOS<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Boa higiene alimentar e pessoal.<\/li>\n\n\n\n<li>Evitar contato direto com solo potencialmente contaminado.<\/li>\n\n\n\n<li>Vermifuga\u00e7\u00e3o regular de animais dom\u00e9sticos.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">REFER\u00caNCIAS<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Gass JD. <em>Surv Ophthalmol<\/em>. 1991;35(3):153\u2013168.<\/li>\n<\/ul>\n","protected":false},"template":"","class_list":["post-5141","doenca","type-doenca","status-publish","hentry"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>DUSN (Diffuse Unilateral Subacute Neuroretinitis): O que \u00e9, Sintomas, Diagn\u00f3stico e Tratamentos | SBRV - SBRV - \u00c1rea do Paciente<\/title>\n<meta name=\"description\" content=\"DUSN: saiba tudo sobre esta infec\u00e7\u00e3o parasit\u00e1ria da retina. 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