{"id":552698,"date":"2026-05-12T11:09:37","date_gmt":"2026-05-12T11:09:37","guid":{"rendered":"https:\/\/www.elza-institute.com\/?p=552698"},"modified":"2026-05-12T12:52:08","modified_gmt":"2026-05-12T12:52:08","slug":"eco-cairs-allogenic-ring-segments-healio","status":"publish","type":"post","link":"http:\/\/www.elza-institute.com\/pt\/eco-cairs-allogenic-ring-segments-healio\/","title":{"rendered":"ECO-CAIRS \u2013 Prof. Hafezi discute a otimiza\u00e7\u00e3o do segmento de anel alog\u00e9nico"},"content":{"rendered":"
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Farhad Hafezi, MD, PhD, FARVO<\/a>, Diretor M\u00e9dico do Instituto ELZA, discutiu o ECO-CAIRS com Not\u00edcias de Healio\/Cirurgia Ocular<\/a> ap\u00f3s a sua apresenta\u00e7\u00e3o na ESCRS Winter Meeting em Atenas.<\/p>\n\n

A entrevista centrou-se em ECO-CAIRS<\/a>, ou Otimiza\u00e7\u00e3o Extracorporal de Segmentos Intrstromais Corneanos Alog\u00e9nicos. Esta estrat\u00e9gia aplica reticula\u00e7\u00e3o da c\u00f3rnea de ultra-alta flu\u00eancia a segmentos de anel da c\u00f3rnea alog\u00e9nicos antes de serem implantados na c\u00f3rnea do paciente.<\/p>\n\n

O objetivo \u00e9 pr\u00e1tico e biomec\u00e2nico: tornar os segmentos de c\u00f3rnea do dador mais f\u00e1ceis de manusear, mais f\u00e1ceis de implantar e mais previs\u00edveis uma vez colocados dentro do t\u00fanel da c\u00f3rnea.<\/p>\n\n

Por que o ECO-CAIRS foi desenvolvido<\/h4>\n\n

Os CAIRS, ou segmentos de anel intrastromal alog\u00e9nico da c\u00f3rnea, s\u00e3o utilizados em pacientes selecionados com queratocone<\/a> para regularizar a c\u00f3rnea e melhorar a qualidade visual. Ao contr\u00e1rio dos segmentos de anel de PMMA sint\u00e9tico, os CAIRS s\u00e3o feitos de tecido da c\u00f3rnea do dador. Isto confere-lhes uma intera\u00e7\u00e3o mais biol\u00f3gica com a c\u00f3rnea do hospedeiro.<\/p>\n\n

Contudo, o tecido da c\u00f3rnea doado pode ser dif\u00edcil de manusear. Na entrevista \u00e0 Healio, o Prof. Hafezi explicou que os segmentos Femto-CAIRS podem ser relativamente moles ou \u201cfrouxos\u201d, o que pode tornar a inser\u00e7\u00e3o desafiante, especialmente para cirurgi\u00f5es que ainda est\u00e3o no in\u00edcio da sua curva de aprendizagem.<\/p>\n\n

O ECO-CAIRS foi desenvolvido para contornar esta limita\u00e7\u00e3o. Ap\u00f3s os segmentos alog\u00e9nicos serem cortados com um laser de femtosegundo, s\u00e3o reticulados fora do olho antes da implanta\u00e7\u00e3o. \u00c9 por isso que a t\u00e9cnica \u00e9 descrita como extracorporal: o passo de otimiza\u00e7\u00e3o ocorre fora do corpo do paciente.<\/p>\n\n

Como o CXL de ultra-alta flu\u00eancia altera o segmento<\/h4>\n\n

No ECO-CAIRS, o segmento de c\u00f3rnea do dador \u00e9 tratado com reticula\u00e7\u00e3o de c\u00f3rnea de alta flu\u00eancia, tipicamente na gama de 30 J\/cm\u00b2 a 60 J\/cm\u00b2, antes de ser implantado. Isto rigidifica o tecido e facilita a sua introdu\u00e7\u00e3o no t\u00fanel intrastromal.<\/p>\n\n

Como o cross-linking \u00e9 realizado fora do olho, a c\u00f3rnea, o endot\u00e9lio, a lente cristalina e a retina do paciente n\u00e3o s\u00e3o expostos a este tratamento UV adicional. O objetivo \u00e9 modificar o pr\u00f3prio segmento do dador, n\u00e3o os tecidos oculares circundantes.<\/p>\n\n

O Prof. Hafezi explicou ainda que o segmento tratado permanece mais plano e mais controlado durante a implanta\u00e7\u00e3o. Posteriormente, expande-se ao longo do tempo, o que pode contribuir para o efeito pretendido de achatamento da c\u00f3rnea.<\/p>\n\n

Por que \u00e9 que isto \u00e9 importante para a cirurgia do ceratocone<\/h4>\n\n

Moderno tratamento do ceratocone<\/a> j\u00e1 n\u00e3o se limita a deter a progress\u00e3o da doen\u00e7a. Em muitos doentes, o objetivo \u00e9 tamb\u00e9m a reabilita\u00e7\u00e3o visual: melhorar a forma da c\u00f3rnea, reduzir o astigmatismo irregular e ajudar o doente a atingir uma melhor vis\u00e3o funcional.<\/p>\n\n

Na ELZA, esta estrat\u00e9gia de reabilita\u00e7\u00e3o pode incluir o cross-linking da c\u00f3rnea, ELZA-PACE CXL personalizado<\/a>, transPRK guiada por frente de onda, Femto-CAIRS ou ECO-CAIRS, dependendo das caracter\u00edsticas espec\u00edficas da c\u00f3rnea. Estas abordagens n\u00e3o s\u00e3o intercambi\u00e1veis; cada uma desempenha um papel diferente no \u00e2mbito de um plano de tratamento faseado e individualizado.<\/p>\n\n

O ECO-CAIRS \u00e9 particularmente relevante porque aborda as propriedades mec\u00e2nicas do tecido implantado antes da cirurgia. Ao tornar o segmento alog\u00e9nico mais r\u00edgido e mais f\u00e1cil de manusear, a t\u00e9cnica pode melhorar o controlo cir\u00fargico e reduzir alguns dos desafios t\u00e9cnicos associados ao tecido doador mais mole.<\/p>\n\n

Uma alternativa \u00e0 base de tecido para segmentos de anel sint\u00e9ticos<\/h4>\n\n

Os segmentos de anel alog\u00e9nicos foram concebidos para oferecer uma alternativa de base tecidular aos segmentos de anel intracorneais sint\u00e9ticos. Conforme referido na reportagem da Healio, o tecido corneano de dador pode ser melhor tolerado do que os segmentos de anel de PMMA, uma vez que se trata de tecido biol\u00f3gico e n\u00e3o de pl\u00e1stico.<\/p>\n\n

A ECO-CAIRS alarga este conceito atrav\u00e9s da modifica\u00e7\u00e3o do tecido doador antes da implanta\u00e7\u00e3o. O objetivo n\u00e3o \u00e9 simplesmente colocar um segmento na c\u00f3rnea, mas sim otimizar a rigidez, o comportamento volum\u00e9trico e as caracter\u00edsticas de manuseamento desse segmento antes de este ser introduzido no olho.<\/p>\n\n

Isto reflete uma dire\u00e7\u00e3o mais ampla na cirurgia de ceratocone: afastando-se de implantes padronizados e protocolos uniformes em dire\u00e7\u00e3o a um planeamento de tratamento personalizado e biomecanicamente informado.<\/p>\n\n

O papel da ELZA no desenvolvimento do ECO-CAIRS<\/h4>\n\n

O Instituto ELZA contribuiu para o desenvolvimento de v\u00e1rias abordagens avan\u00e7adas para o queratocone e a ectasia da c\u00f3rnea, incluindo ELZA-PACE<\/a>, Femto-CAIRS e ECO-CAIRS<\/a>, e estrat\u00e9gias individualizadas de cross-linking para c\u00f3rneas complexas.<\/p>\n\n

Na entrevista Healio, o Prof. Hafezi observou que o pr\u00f3ximo passo \u00e9 estabelecer um nomograma baseado no volume e na rigidez do segmento. O objetivo \u00e9 avan\u00e7ar para um efeito mais personalizado para cada c\u00f3rnea, em vez de depender de um \u00fanico comportamento padr\u00e3o do segmento.<\/p>\n\n

Isto \u00e9 consistente com a abordagem mais abrangente da ELZA aos cuidados com o ceratocone: estabilizar a doen\u00e7a onde necess\u00e1rio, melhorar a regularidade da c\u00f3rnea sempre que poss\u00edvel e selecionar a combina\u00e7\u00e3o menos invasiva de procedimentos que seja apropriada para cada olho individual.<\/p>\n\n

Leia o relat\u00f3rio da Healio<\/h4>\n\n

O artigo completo do Healio\/Ocular Surgery News pode ser lido aqui: A estrat\u00e9gia ECO-CAIRS oferece otimiza\u00e7\u00e3o e facilidade de implanta\u00e7\u00e3o para segmentos de anel alog\u00e9nicos<\/a>.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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O Prof. Farhad Hafezi discute o ECO-CAIRS, uma estrat\u00e9gia que utiliza CXL de alta flu\u00eancia para otimizar segmentos de anel alog\u00e9nicos para o ceratocono.<\/p>","protected":false},"author":4,"featured_media":552700,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_angie_page":false,"page_builder":"","footnotes":""},"categories":[214,1,96],"tags":[778,101631,561,993,379,123,861,753],"class_list":["post-552698","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-farhad-hafezi","category-general-news","category-popular-press","tag-cairs","tag-caris","tag-corneal-ectasia","tag-eco-cairs","tag-ectasia","tag-keratoconus","tag-vision-rehabilitation","tag-zurich"],"acf":[],"yoast_head":"\nECO-CAIRS - Prof. Hafezi discusses allogenic ring segment optimisation - The ELZA Institute<\/title>\n<meta name=\"description\" content=\"Prof. Farhad Hafezi explains how ECO-CAIRS may improve implantation and flattening effects in allogenic ring segment surgery.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"http:\/\/www.elza-institute.com\/pt\/eco-cairs-allogenic-ring-segments-healio\/\" \/>\n<meta property=\"og:locale\" content=\"pt_PT\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"ECO-CAIRS - 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