{"id":21991,"date":"2026-10-13T07:00:00","date_gmt":"2026-10-13T07:00:00","guid":{"rendered":"https:\/\/endoscopiaterapeutica.net\/pt\/?p=21991"},"modified":"2026-10-13T19:34:15","modified_gmt":"2026-10-13T19:34:15","slug":"estenoses-de-colon-guideline-asge","status":"publish","type":"post","link":"https:\/\/endoscopiaterapeutica.net\/pt\/assuntosgerais\/estenoses-de-colon-guideline-asge\/","title":{"rendered":"Manejo das estenoses de c\u00f3lon segundo o novo guideline da ASGE"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">Estenoses de c\u00f3lon podem apresentar diversas etiologias, como neoplasias colorretais, compress\u00f5es extr\u00ednsecas por doen\u00e7a metast\u00e1tica, estenose anastom\u00f3tica p\u00f3s-cir\u00fargica, diverticulite e Doen\u00e7a de Crohn.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/www.giejournal.org\/article\/S0016-5107(26)00210-5\/fulltext\">As diretrizes de 2026 da Sociedade Americana de Endoscopia Gastrointestinal (ASGE)<\/a> fornecem recomenda\u00e7\u00f5es estruturadas para avalia\u00e7\u00e3o e tratamento de obstru\u00e7\u00f5es col\u00f4nicas benignas e malignas. Essas recomenda\u00e7\u00f5es buscam balancear a efic\u00e1cia do procedimento com os poss\u00edveis eventos adversos.<\/p>\n\n\n\n<h2 id=\"h-avaliacao-inicial-das-estenoses-de-colon\" class=\"wp-block-heading\"><br><strong>Avalia\u00e7\u00e3o Inicial das Estenoses de C\u00f3lon<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">A avalia\u00e7\u00e3o cl\u00ednica inicial deve descartar a necessidade de cirurgia de emerg\u00eancia, a partir da avalia\u00e7\u00e3o de sinais de sepse, isquemia ou perfura\u00e7\u00e3o. Exames de imagem como, tomografia computadorizada (TC) ou resson\u00e2ncia magn\u00e9tica (RM), apresentam papel importante na determina\u00e7\u00e3o da topografia e da etiologia da estenose de c\u00f3lon.<br><br><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Avalia\u00e7\u00e3o Endosc\u00f3pica:<\/strong>&nbsp;deve-se, preferencialmente, progredir o endosc\u00f3pio com irriga\u00e7\u00e3o por \u00e1gua, a fim de evitar a cria\u00e7\u00e3o de um sistema de &#8220;al\u00e7a fechada&#8221; pela insufla\u00e7\u00e3o com CO2, o que aumenta o risco de perfura\u00e7\u00e3o proximal. \u00c9 necess\u00e1ria uma documenta\u00e7\u00e3o fotogr\u00e1fica cuidadosa, al\u00e9m da avalia\u00e7\u00e3o do di\u00e2metro, do comprimento e da presen\u00e7a de ulcera\u00e7\u00e3o na estenose.<\/li>\n\n\n\n<li><strong>Bi\u00f3psias:<\/strong>&nbsp;se houver suspeita de neoplasia ou doen\u00e7a inflamat\u00f3ria intestinal (DII), devem-se realizar aproximadamente 6 bi\u00f3psias direcionadas. As bi\u00f3psias devem ser estritamente evitadas no interior de divert\u00edculos devido ao alto risco de perfura\u00e7\u00e3o.<\/li>\n\n\n\n<li><strong>Tatuagem:<\/strong>&nbsp;deve-se tatuar as les\u00f5es neopl\u00e1sicas que exigir\u00e3o manejo cir\u00fargico subsequente. As inje\u00e7\u00f5es devem ser aplicadas na camada submucosa, cerca de 3 a 5 cm distalmente \u00e0 les\u00e3o, distribu\u00eddas em 2 a 4 quadrantes. Caso seja poss\u00edvel transpor a estenose com o colonosc\u00f3pio, deve-se avaliar a realiza\u00e7\u00e3o de tatuagem proximal, respeitando tamb\u00e9m a mesma dist\u00e2ncia da les\u00e3o. Les\u00f5es de ceco ou reto distal n\u00e3o necessitam de tatuagem.<\/li>\n<\/ul>\n\n\n\n<h2 id=\"h-manejo-da-obstrucao-colonica-maligna-por-ccr-potencialmente-ressecavel\" class=\"wp-block-heading\"><br><strong>Manejo da Obstru\u00e7\u00e3o Col\u00f4nica Maligna por CCR Potencialmente Ressec\u00e1vel<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Para o c\u00e2ncer colorretal (CCR) potencialmente cur\u00e1vel, recomenda-se a coloca\u00e7\u00e3o de uma pr\u00f3tese met\u00e1lica autoexpans\u00edvel (SEMS) como ponte para cirurgia, em vez da cirurgia de emerg\u00eancia.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Benef\u00edcios:<\/strong>&nbsp;a coloca\u00e7\u00e3o do SEMS associou-se a aumento significativo da probabilidade de anastomose cir\u00fargica prim\u00e1ria, \u00e0 redu\u00e7\u00e3o da necessidade de colostomia permanente e a menor taxa de eventos adversos p\u00f3s-operat\u00f3rios, al\u00e9m de proporcionar tempo para estadiamento pr\u00e9-operat\u00f3rio adequado.<\/li>\n\n\n\n<li><strong>Considera\u00e7\u00f5es:<\/strong> relata-se um risco potencial, ainda que sustentado por evid\u00eancias fracas, de aumento da recorr\u00eancia do c\u00e2ncer, al\u00e9m do risco inerente de perfura\u00e7\u00e3o relacionada ao SEMS.<\/li>\n\n\n\n<li><strong>Tipo de Pr\u00f3tese:<\/strong>&nbsp;a evid\u00eancia favorece a utiliza\u00e7\u00e3o de SEMSs n\u00e3o recobertos em rela\u00e7\u00e3o \u00e0s pr\u00f3teses recobertas para obstru\u00e7\u00f5es por CCR, uma vez que estes oferecem maior perviedade, menores taxas de migra\u00e7\u00e3o e exigem menos reinterven\u00e7\u00f5es.<\/li>\n<\/ul>\n\n\n\n<h2 id=\"h-manejo-da-obstrucao-colonica-maligna-por-ccr-irressecavel\" class=\"wp-block-heading\"><br><strong>Manejo da Obstru\u00e7\u00e3o Col\u00f4nica Maligna por CCR Irressec\u00e1vel<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Em cen\u00e1rios paliativos em que o CCR n\u00e3o \u00e9 pass\u00edvel de cura cir\u00fargica, sugere-se a coloca\u00e7\u00e3o de SEMS n\u00e3o recoberto no lugar de uma cirurgia paliativa.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Benef\u00edcios:<\/strong>&nbsp;a coloca\u00e7\u00e3o de pr\u00f3tese reduz a necessidade de ostomias permanentes, diminui os eventos adversos e encurta as interna\u00e7\u00f5es hospitalares, sem diferen\u00e7a significativa na mortalidade em 30 dias quando comparada \u00e0 cirurgia.<\/li>\n\n\n\n<li><strong>Cautela com o Bevacizumabe:<\/strong>&nbsp;para pacientes que recebem ou planejam receber o inibidor de VEGF bevacizumabe (medica\u00e7\u00e3o associada a riscos aumentados de perfura\u00e7\u00e3o gastrointestinal), a escolha do m\u00e9todo de tratamento da estenose de c\u00f3lon exige uma tomada de decis\u00e3o compartilhada e multidisciplinar, pesando o risco de perfura\u00e7\u00e3o relacionada \u00e0 pr\u00f3tese contra os riscos de complica\u00e7\u00f5es cir\u00fargicas.<\/li>\n<\/ul>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><a href=\"https:\/\/endoscopiaterapeutica.net\/pt\/?attachment_id=21992\"><img fetchpriority=\"high\" decoding=\"async\" width=\"1024\" height=\"466\" src=\"https:\/\/endoscopiaterapeutica.net\/pt\/wp-content\/uploads\/2026\/10\/passagem-de-protese-metalica-em-obstrucao-maligna-de-colon-1024x466.jpg\" alt=\"Modalidades terap\u00eauticas para estenoses de c\u00f3lon\" class=\"wp-image-21992\" srcset=\"https:\/\/endoscopiaterapeutica.net\/pt\/wp-content\/uploads\/2026\/10\/passagem-de-protese-metalica-em-obstrucao-maligna-de-colon-1024x466.jpg?v=1791816755 1024w, https:\/\/endoscopiaterapeutica.net\/pt\/wp-content\/uploads\/2026\/10\/passagem-de-protese-metalica-em-obstrucao-maligna-de-colon-300x136.jpg?v=1791816755 300w, https:\/\/endoscopiaterapeutica.net\/pt\/wp-content\/uploads\/2026\/10\/passagem-de-protese-metalica-em-obstrucao-maligna-de-colon-768x349.jpg?v=1791816755 768w, https:\/\/endoscopiaterapeutica.net\/pt\/wp-content\/uploads\/2026\/10\/passagem-de-protese-metalica-em-obstrucao-maligna-de-colon-1170x532.jpg?v=1791816755 1170w, https:\/\/endoscopiaterapeutica.net\/pt\/wp-content\/uploads\/2026\/10\/passagem-de-protese-metalica-em-obstrucao-maligna-de-colon-585x266.jpg?v=1791816755 585w, https:\/\/endoscopiaterapeutica.net\/pt\/wp-content\/uploads\/2026\/10\/passagem-de-protese-metalica-em-obstrucao-maligna-de-colon.jpg?v=1791816755 1431w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/a><figcaption class=\"wp-element-caption\"><br>Figura 1 \u2013 Passagem de pr\u00f3tese met\u00e1lica em obstru\u00e7\u00e3o maligna de c\u00f3lon \u2013 Imagens cedidas por Dra. Paula Botelho.<\/figcaption><\/figure>\n<\/div>\n\n\n<h2 id=\"h-manejo-da-obstrucao-colonica-maligna-por-malignidade-extracolonica\" class=\"wp-block-heading\"><br><strong>Manejo da Obstru\u00e7\u00e3o Col\u00f4nica Maligna por Malignidade Extracol\u00f4nica<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">As obstru\u00e7\u00f5es causadas por neoplasias malignas extracol\u00f4nicas (por exemplo, c\u00e2ncer de ov\u00e1rio, pr\u00f3stata ou carcinomatose peritoneal) requerem cuidados altamente individualizados, baseados na biologia do tumor e no progn\u00f3stico do paciente.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Efic\u00e1cia:<\/strong>&nbsp;embora a coloca\u00e7\u00e3o de SEMS seja uma alternativa vi\u00e1vel \u00e0 deriva\u00e7\u00e3o cir\u00fargica para pacientes com <em>performance status<\/em> ruim, ela acarreta um risco substancialmente maior de falha t\u00e9cnica e cl\u00ednica em compara\u00e7\u00e3o com os tumores intracol\u00f4nicos, devido \u00e0 angula\u00e7\u00e3o da estenose e \u00e0 compress\u00e3o extr\u00ednseca.<\/li>\n\n\n\n<li><strong>Sele\u00e7\u00e3o do Tratamento:<\/strong>&nbsp;n\u00e3o h\u00e1 evid\u00eancias suficientes para recomendar definitivamente as pr\u00f3teses em detrimento da cirurgia. Portanto, a escolha deve basear-se em avalia\u00e7\u00e3o multidisciplinar e no consentimento expl\u00edcito do paciente, ciente das taxas de sucesso mais baixas.<\/li>\n<\/ul>\n\n\n\n<h2 id=\"h-manejo-das-estenoses-benignas-de-colon\" class=\"wp-block-heading\"><br><strong>Manejo das Estenoses<\/strong> <strong>Benignas de C\u00f3lon<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Para estenoses benignas sintom\u00e1ticas (por exemplo, anastomose p\u00f3s-cir\u00fargica ou doen\u00e7a de Crohn em remiss\u00e3o), priorizam-se medidas endosc\u00f3picas conservadoras.<br><br><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Dilata\u00e7\u00e3o Endosc\u00f3pica com Bal\u00e3o:<\/strong>&nbsp; \u00e9 a terapia de primeira linha recomendada. Al\u00e9m disso, \u00e9 altamente bem-sucedida, menos dispendiosa e apresenta um risco menor de eventos adversos quando comparada \u00e0 coloca\u00e7\u00e3o de pr\u00f3teses.<\/li>\n\n\n\n<li><strong>Coloca\u00e7\u00e3o de Pr\u00f3tese Met\u00e1lica:<\/strong>&nbsp;os SEMSs totalmente recobertos podem ser considerados em caso de falha terap\u00eautica da dilata\u00e7\u00e3o balonada, mas apresentam um alto risco de migra\u00e7\u00e3o da pr\u00f3tese (at\u00e9 28-31%). Os stents met\u00e1licos de aposi\u00e7\u00e3o luminal (LAMS) s\u00e3o uma op\u00e7\u00e3o restrita a estenoses anastom\u00f3ticas curtas (&lt;15 mm), embora a migra\u00e7\u00e3o continue sendo um problema significativo.<\/li>\n\n\n\n<li><strong>Estenotomia:<\/strong>&nbsp;a estenotomia endosc\u00f3pica pode ser considerada para estenoses fibr\u00f3ticas curtas (&lt;3 cm), desde que haja expertise t\u00e9cnica dispon\u00edvel. Embora reduza a recorr\u00eancia da estenose, acarreta um risco significativamente maior de sangramento p\u00f3s-procedimento.<\/li>\n<\/ul>\n\n\n\n<h2 id=\"h-consideracoes-finais\" class=\"wp-block-heading\"><strong>Considera\u00e7\u00f5es Finais<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">As pr\u00f3teses met\u00e1licas n\u00e3o recobertas s\u00e3o a interven\u00e7\u00e3o de prefer\u00eancia para obstru\u00e7\u00f5es col\u00f4nicas malignas, tanto em cen\u00e1rios de ponte para cirurgia quanto paliativos, embora a decis\u00e3o deva ser tomada em conjunto com as demais equipes envolvidas no cuidado do paciente, levando em considera\u00e7\u00e3o as particularidades de cada caso.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Para estenoses de c\u00f3lon de etiologia benigna, a dilata\u00e7\u00e3o endosc\u00f3pica com bal\u00e3o permanece a terapia de primeira linha, com o uso de pr\u00f3teses met\u00e1licas e a estenotomia endosc\u00f3pica servindo como interven\u00e7\u00f5es alternativas vi\u00e1veis para casos selecionados.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Perspectivas futuras para o tratamento endosc\u00f3pico da obstru\u00e7\u00e3o de c\u00f3lon abarcam o desenvolvimento de novos modelos de pr\u00f3tese, com potencial para menor taxa de migra\u00e7\u00e3o, e a utiliza\u00e7\u00e3o de deriva\u00e7\u00e3o colocol\u00f4nica guiada por ecoendoscopia, ainda com necessidade de maior volume de estudos para avaliar sua efic\u00e1cia e seu perfil de de seguran\u00e7a em rela\u00e7\u00e3o \u00e0s abordagens j\u00e1 consagradas.<\/p>\n\n\n\n<div style=\"height:49px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p class=\"has-pale-ocean-gradient-background has-background wp-block-paragraph\">Para saber mais sobre as <a href=\"https:\/\/endoscopiaterapeutica.net\/pt\/assuntosgerais\/o-uso-de-proteses-metalicas-no-cancer-colorretal\/\">indica\u00e7\u00f5es e os resultados das pr\u00f3teses met\u00e1licas no c\u00e2ncer colorretal<\/a>, acesse este artigo em nosso portal.<\/p>\n\n\n\n<h2 id=\"h-referencias\" class=\"wp-block-heading\"><br><strong>Refer\u00eancias<\/strong><\/h2>\n\n\n\n<ol class=\"wp-block-list\">\n<li>Machicado JD, Ngamruengphong S, Ali F, Lee C, Marin-Tamayo RA, Arayakarnkul S, et al. American Society for Gastrointestinal Endoscopy guideline on endoscopic management of benign and malignant colonic strictures. Gastrointest Endosc. 2026 Aug;104(2):164-81.<\/li>\n\n\n\n<li>Mauro A, Scalvini D, Borgetto S, Fugazzola P, Mazza S, Perretti I, et al. Malignant acute colonic obstruction: multidisciplinary approach for endoscopic management. Cancers (Basel). 2024 Feb 18;16(4):821.<\/li>\n\n\n\n<li>Soota K, Rustagi T. EUS-guided colocolostomy by use of a lumen-apposing metal stent for malignant sigmoid colon obstruction. Gastrointest Endosc. 2021;94:430-1.<\/li>\n<\/ol>\n\n\n\n<h2 id=\"h-como-citar-este-artigo\" class=\"wp-block-heading\"><strong>Como citar este artigo<\/strong><\/h2>\n\n\n\n<p class=\"has-very-light-gray-to-cyan-bluish-gray-gradient-background has-background wp-block-paragraph\">Logiudice FP. Manejo das estenoses de c\u00f3lon segundo o novo guideline da ASGE. Endoscopia Terapeutica 2026. Vol II; Dispon\u00edvel em:&nbsp;<a href=\"https:\/\/endoscopiaterapeutica.net\/pt\/?p=21991\" target=\"_blank\" rel=\"noopener\">https:\/\/endoscopiaterapeutica.net\/pt\/assuntosgerais\/estenoses-de-colon-guideline-asge\/<\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Estenoses de c\u00f3lon podem apresentar diversas etiologias, como neoplasias colorretais, compress\u00f5es extr\u00ednsecas por doen\u00e7a&hellip;<\/p>\n","protected":false},"author":5752,"featured_media":21995,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_lmt_disableupdate":"","_lmt_disable":"","footnotes":""},"categories":[151],"tags":[342,501],"ano":[847],"tipo":[788,156],"volume":[147],"class_list":["post-21991","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-assuntosgerais","tag-colonoscopia","tag-estenose","ano-847","tipo-assuntos-gerais","tipo-colonoscopia","volume-volume-ii"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.2 (Yoast SEO v28.5) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Estenoses de c\u00f3lon: manejo endosc\u00f3pico segundo a ASGE 2026<\/title>\n<meta name=\"description\" content=\"Estenoses de c\u00f3lon: veja as recomenda\u00e7\u00f5es do guideline ASGE 2026 sobre sua avalia\u00e7\u00e3o e modalidades 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