{"id":77916,"date":"2025-03-08T09:09:25","date_gmt":"2025-03-08T09:09:25","guid":{"rendered":"https:\/\/ovobank.com\/advances-in-egg-devitrification-success-in-ovodonation\/"},"modified":"2025-10-27T13:00:11","modified_gmt":"2025-10-27T13:00:11","slug":"avancos-na-desvitrificacao-ovulos-sucessos-na-ovodonacao","status":"publish","type":"post","link":"https:\/\/ovobank.com\/pt-pt\/avancos-na-desvitrificacao-ovulos-sucessos-na-ovodonacao\/","title":{"rendered":"Avan\u00e7os na desvitrifica\u00e7\u00e3o de \u00f3vulos: melhores taxas de sucesso nos tratamentos de ovodona\u00e7\u00e3o"},"content":{"rendered":"<p>A\u00a0<strong>ovodona\u00e7\u00e3o\u00a0<\/strong>\u00e9, devido a todos os avan\u00e7os da medicina reprodutiva e a t\u00e9cnicas como a\u00a0<strong>desvitrifica\u00e7\u00e3o\u00a0<\/strong>de\u00a0<strong>\u00f3vulos<\/strong>, um dos tratamentos de reprodu\u00e7\u00e3o assistida com melhores taxas de sucesso atualmente. Semelhante \u00e0\u00a0<a href=\"https:\/\/ovoclinic.net\/ovodonacao\/?lang=pt-pt\">fertiliza\u00e7\u00e3o in vitro (FIV)<\/a>, este tratamento requer a fecunda\u00e7\u00e3o de \u00f3vulos de dadores com o esperma do casal que deseja ter um beb\u00e9. Estes embri\u00f5es gerados s\u00e3o transferidos para a m\u00e3e recetora que n\u00e3o pode ter filhos com os seus pr\u00f3prios \u00f3vulos.<\/p>\n<p>Para que este tratamento seja bem sucedido, \u00e9 essencial cuidar de todos os pormenores de todos os processos que est\u00e3o na base da doa\u00e7\u00e3o de \u00f3vulos. Neste artigo, vamos analisar a import\u00e2ncia das\u00a0<strong>t\u00e9cnicas\u00a0<\/strong>de\u00a0<strong>vitrifica\u00e7\u00e3o<\/strong>\u00a0de \u00f3vulos nos tratamentos de doa\u00e7\u00e3o de \u00f3vulos.<\/p>\n<h2>O que \u00e9 a desvitrifica\u00e7\u00e3o de \u00f3vulos?<\/h2>\n<p>Depois de explicarmos o que \u00e9 a\u00a0<strong>ovodona\u00e7\u00e3o<\/strong>, vamos agora abordar um dos seus procedimentos cruciais, a vitrifica\u00e7\u00e3o e a desvitrifica\u00e7\u00e3o dos \u00f3vulos. Por\u00a0<strong>vitrifica\u00e7\u00e3o de ov\u00f3citos<\/strong>\u00a0entendemos a t\u00e9cnica aplicada \u00e0 criopreserva\u00e7\u00e3o de ov\u00f3citos humanos em\u00a0<strong>met\u00e1fase II<\/strong>\u00a0(ov\u00f3citos maduros). Esta consiste no arrefecimento ultrarr\u00e1pido dos ov\u00f3citos em azoto l\u00edquido a -196\u00ba Celsius. Estes podem ser armazenados durante um per\u00edodo de tempo prolongado. Quando se pretende recuperar os ov\u00f3citos, aplica-se a t\u00e9cnica de desvitrifica\u00e7\u00e3o. Nesta fase, os crioprotectores utilizados na vitrifica\u00e7\u00e3o s\u00e3o retirados e os ov\u00f3citos s\u00e3o re-hidratados. Este processo tem uma dura\u00e7\u00e3o aproximada de 15 minutos.<\/p>\n<p>Embora a taxa de sobreviv\u00eancia ap\u00f3s a desvitrifica\u00e7\u00e3o seja superior a 90% nos ov\u00f3citos de dadores, os estudos mostram que a excelente\u00a0<a href=\"https:\/\/ovolearning.com\/qualified-embryologists-success\/\">forma\u00e7\u00e3o dos embriologistas<\/a>\u00a0operadores \u00e9 crucial para minimizar a variabilidade dos resultados e garantir a taxa de sucesso dos tratamentos.<\/p>\n<h3>Fertiliza\u00e7\u00e3o dos ovos desvitrificados:<\/h3>\n<p>Uma vez efectuada esta t\u00e9cnica cuidadosa, os \u00f3vulos ser\u00e3o fecundados em laborat\u00f3rio atrav\u00e9s de t\u00e9cnicas de reprodu\u00e7\u00e3o assistida. Uma vez que os \u00f3vulos foram\u00a0<strong>descumulados\u00a0<\/strong>(ou seja, a camada de c\u00e9lulas que os envolve foi removida), a t\u00e9cnica de escolha \u00e9 a inje\u00e7\u00e3o intracitoplasm\u00e1tica de espermatoz\u00f3ides\u00a0<strong>(ICSI)<\/strong>, em que um espermatozoide \u00e9 introduzido diretamente no \u00f3vulo.<\/p>\n<p>Ap\u00f3s a fertiliza\u00e7\u00e3o, os embri\u00f5es resultantes s\u00e3o cultivados em laborat\u00f3rio durante\u00a0<strong>5 ou 6 dias<\/strong>\u00a0at\u00e9 atingirem o<strong>\u00a0est\u00e1dio de blastocisto<\/strong>. Posteriormente, os embri\u00f5es de melhor qualidade s\u00e3o selecionados para serem transferidos para o \u00fatero da recetora, previamente preparado para a implanta\u00e7\u00e3o.<\/p>\n<h3>Vantagens da utiliza\u00e7\u00e3o de ovos vitrificados na d\u00e1diva de ov\u00f3citos:<\/h3>\n<ul>\n<li><strong>Disponibilidade imediata:\u00a0<\/strong>A vitrifica\u00e7\u00e3o torna os \u00f3vulos dispon\u00edveis em qualquer altura, sem necessidade de sincronizar os ciclos menstruais da dadora e da recetora, reduzindo assim os tempos de espera.<\/li>\n<li><strong>Ampla sele\u00e7\u00e3o de dadoras:<\/strong>\u00a0A\u00a0<a href=\"https:\/\/ovobank.com\/?lang=pt-pt\">Ovobank\u00a0<\/a>disp\u00f5e das instala\u00e7\u00f5es mais avan\u00e7adas, bem como de equipamento de \u00faltima gera\u00e7\u00e3o para poder prestar um servi\u00e7o de qualidade superior na cl\u00ednica de reprodu\u00e7\u00e3o assistida Ovoclinic.<\/li>\n<li><strong>Elevadas taxas de sucesso:<\/strong>\u00a0As t\u00e9cnicas actuais de vitrifica\u00e7\u00e3o e desvitrifica\u00e7\u00e3o permitiram alcan\u00e7ar taxas de sobreviv\u00eancia dos \u00f3vulos e de gravidez ainda melhores do que as obtidas com \u00f3vulos frescos.<\/li>\n<\/ul>\n<p><em>O processo de vitrifica\u00e7\u00e3o de ov\u00f3citos da\u00a0<strong>Ovobank\u00a0<\/strong>\u00e9 realizado por pessoal qualificado e formado no dom\u00ednio da criobiologia e os meios e produtos utilizados cumprem a regulamenta\u00e7\u00e3o europeia em vigor. Desta forma, os ov\u00f3citos s\u00e3o processados nas melhores condi\u00e7\u00f5es poss\u00edveis, preservando todo o seu potencial para poder oferecer um servi\u00e7o de qualidade com a m\u00e1xima garantia de sucesso.<\/em><\/p>\n","protected":false},"excerpt":{"rendered":"<p>A\u00a0ovodona\u00e7\u00e3o\u00a0\u00e9, devido a todos os avan\u00e7os da medicina reprodutiva e a t\u00e9cnicas como a\u00a0desvitrifica\u00e7\u00e3o\u00a0de\u00a0\u00f3vulos, um dos tratamentos de reprodu\u00e7\u00e3o assistida&#8230;<\/p>\n","protected":false},"author":6,"featured_media":78033,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","_members_access_role":[],"_members_access_error":""},"categories":[6626],"tags":[6590],"class_list":["post-77916","post","type-post","status-publish","format-standard","has-post-thumbnail","category-inovacao-e-desenvolvimento","tag-devitrificacao"],"yoast_head":"<!-- This site is optimized with the 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