{"id":6354,"date":"2023-06-29T08:30:22","date_gmt":"2023-06-29T11:30:22","guid":{"rendered":"https:\/\/gastropedia.pub\/pt\/?p=6354"},"modified":"2023-10-15T14:54:23","modified_gmt":"2023-10-15T17:54:23","slug":"particao-gastrica-para-tratamento-de-tumores-gastricos-distais-obstrutivos-nao-ressecaveis","status":"publish","type":"post","link":"https:\/\/gastropedia.pub\/pt\/cirurgia\/esofago-estomago-duodeno\/particao-gastrica-para-tratamento-de-tumores-gastricos-distais-obstrutivos-nao-ressecaveis\/","title":{"rendered":"Parti\u00e7\u00e3o g\u00e1strica para tratamento de tumores g\u00e1stricos distais obstrutivos n\u00e3o ressec\u00e1veis"},"content":{"rendered":"<div class=\"pdfprnt-buttons pdfprnt-buttons-post pdfprnt-top-right\"><a href=\"https:\/\/gastropedia.pub\/pt\/wp-json\/wp\/v2\/posts\/6354?print=pdf\" class=\"pdfprnt-button pdfprnt-button-pdf\" target=\"_blank\" ><img decoding=\"async\" src=\"https:\/\/gastropedia.pub\/pt\/wp-content\/plugins\/pdf-print\/images\/pdf.png\" alt=\"image_pdf\" title=\"Ver PDF\" \/><\/a><a href=\"https:\/\/gastropedia.pub\/pt\/wp-json\/wp\/v2\/posts\/6354?print=print\" class=\"pdfprnt-button pdfprnt-button-print\" target=\"_blank\" ><img decoding=\"async\" src=\"https:\/\/gastropedia.pub\/pt\/wp-content\/plugins\/pdf-print\/images\/print.png\" alt=\"image_print\" title=\"Conte\u00fado de impress\u00e3o\" \/><\/a><\/div>\n<p><\/p>\n\n\n\n<p>Infelizmente, muitos pacientes no momento do diagn\u00f3stico j\u00e1 apresentam tumores g\u00e1stricos localmente avan\u00e7ados, que n\u00e3o podem ser removidos por meio de procedimento cir\u00fargico, ou sinais de doen\u00e7a sist\u00eamica. No Brasil, esse n\u00famero pode representar mais de 25% dos casos. A obstru\u00e7\u00e3o g\u00e1strica distal (<em>gastric outlet obstruction<\/em>) ocorre em cerca de 30% dos tumores g\u00e1stricos distais. Nessas situa\u00e7\u00f5es, a principal modalidade terap\u00eautica n\u00e3o curativa para o tratamento do CG persiste sendo a ressec\u00e7\u00e3o do tumor, mas sem a necessidade de linfadenectomia associada.<\/p>\n\n\n\n<p>No entanto, alguns pacientes apresentam tumores localmente avan\u00e7ados que n\u00e3o podem ser ressecados. A incid\u00eancia destes varia na literatura de 5 a 30% dos casos de CG. Nesses casos, procedimentos de deriva\u00e7\u00e3o gastrointestinal ou o emprego de <a href=\"https:\/\/endoscopiaterapeutica.com.br\/gastroentero-anastomose-ecoguiada-eus-ge-tips-and-tricks\/\" target=\"_blank\" rel=\"noreferrer noopener\">pr\u00f3teses endosc\u00f3picas<\/a> podem ser indicados para melhorar a qualidade de vida, aliviar os sintomas de obstru\u00e7\u00e3o g\u00e1strica, e assim possibilitar a administra\u00e7\u00e3o de tratamento paliativo.&nbsp;<\/p>\n\n\n\n<p>O emprego de pr\u00f3teses endosc\u00f3picas tem ganhado popularidade para a palia\u00e7\u00e3o obstru\u00e7\u00f5es do trato digestivo, uma vez que apresenta a vantagem de ser uma op\u00e7\u00e3o menos invasiva e sem a necessidade de uso do centro cir\u00fargico com anestesia geral. Entretanto, o estudo randomizado multic\u00eantrico (<em>Sustent Study<\/em>) relatou pior resultado a longo prazo com uso da pr\u00f3tese comparado com a gastrojejunostomia. Fatores como migra\u00e7\u00e3o da pr\u00f3tese, crescimento tumoral causando nova obstru\u00e7\u00e3o, e eros\u00e3o da parede g\u00e1strica, s\u00e3o complica\u00e7\u00f5es em longo prazo que prejudicam os resultados observados. Outro agravante refere-se ao custo e indisponibilidade imediata das pr\u00f3teses pelo sistema p\u00fablico em nosso pa\u00eds. Atualmente, a pr\u00f3tese \u00e9 indicada principalmente em pacientes com baixa performance cl\u00ednica pela escala da <em>Eastern Cooperative Oncology Group<\/em> (ECOG), e com expectativa de vida inferior a 2 meses.<\/p>\n\n\n\n<p>Com rela\u00e7\u00e3o aos procedimentos cir\u00fargicos de deriva\u00e7\u00e3o, o mais utilizado \u00e9 a <strong>gastrojejunostomia<\/strong>, tamb\u00e9m chamada de gastroentero anastomose. A gastrojejunostomia consiste na realiza\u00e7\u00e3o de anastomose com ampla extens\u00e3o da parede posterior do est\u00f4mago com a primeira al\u00e7a jejunal que alcan\u00e7a o est\u00f4mago sem tens\u00e3o (<strong>Figura 1<\/strong>). A anastomose pode ser realizada de maneira manual ou mec\u00e2nica, com emprego de grampeadores cir\u00fargicos.<\/p>\n\n\n\n<p><strong>Apesar da simplicidade t\u00e9cnica da execu\u00e7\u00e3o da gastrojejunostomia, um grande inconveniente observado na pr\u00e1tica \u00e9 a dificuldade de esvaziamento g\u00e1strico pela anastomose ap\u00f3s a realiza\u00e7\u00e3o do procedimento.<\/strong> Os dados da literatura referem que de 10 a 26 % dos pacientes apresentam essa complica\u00e7\u00e3o, conforme demonstrado na <strong>Figura 1<\/strong>. Tal ocorr\u00eancia pode levar ao aumento no tempo de interna\u00e7\u00e3o e atrasar o in\u00edcio da quimioterapia paliativa, fundamental para prolongar a sobrevida.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><a href=\"https:\/\/gastropedia.pub\/pt\/wp-content\/uploads\/2023\/06\/WhatsApp-Image-2023-06-21-at-16.26.42.jpeg\" data-rel=\"penci-gallery-image-content\" ><img fetchpriority=\"high\" decoding=\"async\" width=\"552\" height=\"382\" src=\"https:\/\/gastropedia.pub\/pt\/wp-content\/uploads\/2023\/06\/WhatsApp-Image-2023-06-21-at-16.26.42.jpeg\" alt=\"\" class=\"wp-image-6355\" srcset=\"https:\/\/gastropedia.pub\/pt\/wp-content\/uploads\/2023\/06\/WhatsApp-Image-2023-06-21-at-16.26.42.jpeg?v=1687375651 552w, https:\/\/gastropedia.pub\/pt\/wp-content\/uploads\/2023\/06\/WhatsApp-Image-2023-06-21-at-16.26.42-300x208.jpeg?v=1687375651 300w\" sizes=\"(max-width: 552px) 100vw, 552px\" \/><\/a><figcaption class=\"wp-element-caption\">Figura 1<\/figcaption><\/figure>\n<\/div>\n\n\n<p>Outro inconveniente deste procedimento \u00e9 a manuten\u00e7\u00e3o do tumor em contato com os alimentos ingeridos pelo paciente, uma vez que a exposi\u00e7\u00e3o do tumor predisp\u00f5e a ocorr\u00eancia de sangramento tumoral. Por fim, existe tamb\u00e9m o risco de obstru\u00e7\u00e3o da gastrojejunostomia pelo crescimento do tumor que se encontra pr\u00f3ximo \u00e0 anastomose, podendo deste modo invadi-la. Esse receio pode levar o cirurgi\u00e3o a realizar a anastomose em uma por\u00e7\u00e3o mais proximal do corpo g\u00e1strico, o que prejudica ainda mais o esvaziamento g\u00e1strico.<\/p>\n\n\n\n<p>Com o objetivo de superar esses inconvenientes, a realiza\u00e7\u00e3o de uma parti\u00e7\u00e3o parcial do est\u00f4mago associada a gastrojejunostomia na c\u00e2mara g\u00e1strica proximal tem sido indicada para tumores distais obstrutivos n\u00e3o ressec\u00e1veis. O racional da realiza\u00e7\u00e3o da parti\u00e7\u00e3o envolve a cria\u00e7\u00e3o de uma c\u00e2mara g\u00e1strica de menores dimens\u00f5es facilitando o esvaziamento pela gastrojejunostomia e a exclus\u00e3o do tumor na c\u00e2mara distal diminuindo o risco de sangramento e impedindo a infiltra\u00e7\u00e3o da anastomose pelo tumor.&nbsp;<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-passos-tecnicos-da-particao-gastrica\"><strong>Passos t\u00e9cnicos da parti\u00e7\u00e3o g\u00e1strica<\/strong><\/h2>\n\n\n\n<p>Ap\u00f3s a identifica\u00e7\u00e3o dos limites proximais da les\u00e3o, um ponto localizado de 3 a 5 cm proximal \u00e0 les\u00e3o na grande curvatura \u00e9 selecionado para iniciar a parti\u00e7\u00e3o (Figura 2).<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><a href=\"https:\/\/gastropedia.pub\/pt\/wp-content\/uploads\/2023\/06\/WhatsApp-Image-2023-06-21-at-16.32.16.jpeg\" data-rel=\"penci-gallery-image-content\" ><img decoding=\"async\" width=\"455\" height=\"333\" src=\"https:\/\/gastropedia.pub\/pt\/wp-content\/uploads\/2023\/06\/WhatsApp-Image-2023-06-21-at-16.32.16.jpeg\" alt=\"\" class=\"wp-image-6356\" srcset=\"https:\/\/gastropedia.pub\/pt\/wp-content\/uploads\/2023\/06\/WhatsApp-Image-2023-06-21-at-16.32.16.jpeg?v=1687375981 455w, https:\/\/gastropedia.pub\/pt\/wp-content\/uploads\/2023\/06\/WhatsApp-Image-2023-06-21-at-16.32.16-300x220.jpeg?v=1687375981 300w\" sizes=\"(max-width: 455px) 100vw, 455px\" \/><\/a><figcaption class=\"wp-element-caption\"><strong>Figura 2. <\/strong>&nbsp;Escolha do local da parti\u00e7\u00e3o. Tumor est\u00e1 identificado na \u00e1rea rasurada pela caneta de marca\u00e7\u00e3o cir\u00fargica e a linha de parti\u00e7\u00e3o no est\u00f4mago definida.<\/figcaption><\/figure>\n<\/div>\n\n\n<p>Sonda de <em>Faucher<\/em> n\u00ba 32 ou nasog\u00e1strica calibrosa \u00e9 passada e mantida ao longo da pequena curvatura g\u00e1strica para manuten\u00e7\u00e3o da comunica\u00e7\u00e3o entre as duas c\u00e2maras g\u00e1stricas criadas pela parti\u00e7\u00e3o (Figura 3). A parti\u00e7\u00e3o parcial do est\u00f4mago \u00e9 realizada com emprego de grampeador linear cortante.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><a href=\"https:\/\/gastropedia.pub\/pt\/wp-content\/uploads\/2023\/06\/WhatsApp-Image-2023-06-21-at-16.35.12.jpeg\" data-rel=\"penci-gallery-image-content\" ><img decoding=\"async\" width=\"451\" height=\"344\" src=\"https:\/\/gastropedia.pub\/pt\/wp-content\/uploads\/2023\/06\/WhatsApp-Image-2023-06-21-at-16.35.12.jpeg\" alt=\"\" class=\"wp-image-6357\" srcset=\"https:\/\/gastropedia.pub\/pt\/wp-content\/uploads\/2023\/06\/WhatsApp-Image-2023-06-21-at-16.35.12.jpeg?v=1687376148 451w, https:\/\/gastropedia.pub\/pt\/wp-content\/uploads\/2023\/06\/WhatsApp-Image-2023-06-21-at-16.35.12-300x229.jpeg?v=1687376148 300w\" sizes=\"(max-width: 451px) 100vw, 451px\" \/><\/a><figcaption class=\"wp-element-caption\"><strong>Figura 3.<\/strong> Posicionamento do grampeador. Sonda de <em>Faucher<\/em> posicionada ao longo da pequena curvatura evitando a sec\u00e7\u00e3o completa do est\u00f4mago.<\/figcaption><\/figure>\n<\/div>\n\n\n<p>Posteriormente, a gastrojejunostomia \u00e9 realizada em posi\u00e7\u00e3o anterior ao c\u00f3lon, isoperist\u00e1ltica na parede posterior do est\u00f4mago com no m\u00ednimo 5 cm de extens\u00e3o, utilizando a primeira al\u00e7a jejunal a cerca de 30-40 cm do \u00e2ngulo de <em>Treitz<\/em> (Figura 4).&nbsp;<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><a href=\"https:\/\/gastropedia.pub\/pt\/wp-content\/uploads\/2023\/06\/WhatsApp-Image-2023-06-21-at-16.39.41.jpeg\" data-rel=\"penci-gallery-image-content\" ><img loading=\"lazy\" decoding=\"async\" width=\"448\" height=\"342\" src=\"https:\/\/gastropedia.pub\/pt\/wp-content\/uploads\/2023\/06\/WhatsApp-Image-2023-06-21-at-16.39.41.jpeg\" alt=\"\" class=\"wp-image-6358\" srcset=\"https:\/\/gastropedia.pub\/pt\/wp-content\/uploads\/2023\/06\/WhatsApp-Image-2023-06-21-at-16.39.41.jpeg?v=1687376427 448w, https:\/\/gastropedia.pub\/pt\/wp-content\/uploads\/2023\/06\/WhatsApp-Image-2023-06-21-at-16.39.41-300x229.jpeg?v=1687376427 300w\" sizes=\"(max-width: 448px) 100vw, 448px\" \/><\/a><figcaption class=\"wp-element-caption\"><strong>Figura 4.<\/strong> Aspecto final ap\u00f3s a parti\u00e7\u00e3o g\u00e1strica. Anastomose mec\u00e2nica realizada ao longo da grande curvatura na parede g\u00e1strica posterior.<\/figcaption><\/figure>\n<\/div>\n\n\n<p>A anastomose pode ser realizada da maneira manual ou com o emprego de grampeador linear cortante. A via de acesso pode ser convencional ou laparosc\u00f3pica, de acordo com a prefer\u00eancia do cirurgi\u00e3o.&nbsp;<\/p>\n\n\n\n<p>Importante ressaltar que nos casos de tumores proximais ou com envolvimento da pequena curvatura proximal a <em>incisura angularis <\/em>a parti\u00e7\u00e3o deve ser evitada pelo risco de obstru\u00e7\u00e3o da comunica\u00e7\u00e3o entre as c\u00e2maras g\u00e1stricas.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><a href=\"https:\/\/gastropedia.pub\/pt\/wp-content\/uploads\/2023\/06\/WhatsApp-Image-2023-06-21-at-16.42.45.jpeg\" data-rel=\"penci-gallery-image-content\" ><img loading=\"lazy\" decoding=\"async\" width=\"457\" height=\"351\" src=\"https:\/\/gastropedia.pub\/pt\/wp-content\/uploads\/2023\/06\/WhatsApp-Image-2023-06-21-at-16.42.45.jpeg\" alt=\"\" class=\"wp-image-6359\" srcset=\"https:\/\/gastropedia.pub\/pt\/wp-content\/uploads\/2023\/06\/WhatsApp-Image-2023-06-21-at-16.42.45.jpeg?v=1687376615 457w, https:\/\/gastropedia.pub\/pt\/wp-content\/uploads\/2023\/06\/WhatsApp-Image-2023-06-21-at-16.42.45-300x230.jpeg?v=1687376615 300w\" sizes=\"(max-width: 457px) 100vw, 457px\" \/><\/a><figcaption class=\"wp-element-caption\"><strong>Figura 5.<\/strong> Crit\u00e9rio de exclus\u00e3o. Tumor proximal \u00e0 <em>incisura angularis<\/em> na pequena curvatura g\u00e1strica.<br><\/figcaption><\/figure>\n<\/div>\n\n\n<details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\"><summary>Sugest\u00e3o de leitura:<\/summary>\n<p><a href=\"https:\/\/gastropedia.pub\/pt\/cirurgia\/terapia-de-conversao-no-cancer-gastrico\/\" target=\"_blank\" rel=\"noreferrer noopener\">Terapia de convers\u00e3o no c\u00e2ncer g\u00e1strico<\/a><\/p>\n<\/details>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-como-citar-este-artigo\"><strong>Como citar este artigo<\/strong><\/h2>\n\n\n\n<p class=\"has-background\" style=\"background-color:#e1e6e9\">Ramos MFKP, Parti\u00e7\u00e3o g\u00e1strica para tratamento de tumores g\u00e1stricos distais obstrutivos n\u00e3o ressec\u00e1veis. Gastropedia 2023 Vol 1. Dispon\u00edvel em: gastropedia.pub\/pt\/sem-categoria\/particao-gastrica-para-tratamento-de-tumores-gastricos-distais-obstrutivos-nao-ressecaveis\/<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Infelizmente, muitos pacientes no momento do diagn\u00f3stico j\u00e1 apresentam tumores g\u00e1stricos localmente avan\u00e7ados, que n\u00e3o podem ser removidos por meio de procedimento cir\u00fargico, ou sinais de doen\u00e7a sist\u00eamica. No Brasil,&hellip;<\/p>\n","protected":false},"author":5595,"featured_media":6358,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_lmt_disableupdate":"","_lmt_disable":"","footnotes":""},"categories":[24,27],"tags":[],"ano":[137],"tipo":[121],"volume":[57],"class_list":["post-6354","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-cirurgia","category-esofago-estomago-duodeno","ano-137","tipo-assuntos-gerais","volume-volume-i"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.2 (Yoast SEO v27.3) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Parti\u00e7\u00e3o g\u00e1strica para tratamento de tumores g\u00e1stricos distais obstrutivos n\u00e3o ressec\u00e1veis - Gastropedia<\/title>\n<meta name=\"description\" content=\"A parti\u00e7\u00e3o do est\u00f4mago associada a gastrojejunostomia tem sido indicada para tumores distais 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