{"id":21380,"date":"2026-05-19T07:00:00","date_gmt":"2026-05-19T07:00:00","guid":{"rendered":"https:\/\/endoscopiaterapeutica.net\/pt\/?p=21380"},"modified":"2026-05-19T02:41:32","modified_gmt":"2026-05-19T02:41:32","slug":"eus-rfa-lesoes-pancreaticas","status":"publish","type":"post","link":"https:\/\/endoscopiaterapeutica.net\/pt\/assuntosgerais\/eus-rfa-lesoes-pancreaticas\/","title":{"rendered":"Abla\u00e7\u00e3o por Radiofrequ\u00eancia Guiada por EUS em Les\u00f5es Pancre\u00e1ticas: Indica\u00e7\u00f5es e Evid\u00eancias na Pr\u00e1tica Cl\u00ednica"},"content":{"rendered":"\n<p>A abla\u00e7\u00e3o por radiofrequ\u00eancia guiada por ultrassonografia endosc\u00f3pica (EUS-RFA) tem se consolidado como uma alternativa minimamente invasiva no manejo de les\u00f5es pancre\u00e1ticas selecionadas. A t\u00e9cnica combina a alta precis\u00e3o da ecoendoscopia com o efeito t\u00e9rmico da radiofrequ\u00eancia, permitindo necrose tecidual controlada com preserva\u00e7\u00e3o do par\u00eanquima adjacente.<\/p>\n\n\n\n<div style=\"height:31px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-o-que-e-a-eus-rfa\"><strong>O que \u00e9 a EUS-RFA?<\/strong><\/h2>\n\n\n\n<p>A EUS-RFA consiste na introdu\u00e7\u00e3o de uma sonda de radiofrequ\u00eancia acoplada a uma agulha guiada por ultrassom endosc\u00f3pico, possibilitando a aplica\u00e7\u00e3o direta de energia t\u00e9rmica na les\u00e3o-alvo. <\/p>\n\n\n\n<p><strong>Principais caracter\u00edsticas:<\/strong><\/p>\n\n\n\n<p>\u2022Abordagem minimamente invasiva<br>\u2022Alta precis\u00e3o locorregional<br>\u2022Potencial preserva\u00e7\u00e3o da fun\u00e7\u00e3o pancre\u00e1tica<\/p>\n\n\n\n<div style=\"height:31px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-mecanismo-de-acao-da-radioablacao\"><strong>Mecanismo de a\u00e7\u00e3o da radioabla\u00e7\u00e3o<\/strong><\/h2>\n\n\n\n<p>O efeito terap\u00eautico da EUS-RFA baseia-se em: <\/p>\n\n\n\n<p>\u2022Gera\u00e7\u00e3o de calor por corrente de radiofrequ\u00eancia<br>\u2022Aumento da temperatura tecidual<br>\u2022Coagula\u00e7\u00e3o proteica e necrose celular<br>\u2022Indu\u00e7\u00e3o de resposta inflamat\u00f3ria local<br>\u2022Poss\u00edvel efeito imunomodulador sist\u00eamico<\/p>\n\n\n\n<p>Estudos sugerem que a abla\u00e7\u00e3o pode modular a resposta imune tumoral, aspecto de interesse crescente em oncologia pancre\u00e1tica.<\/p>\n\n\n\n<div style=\"height:31px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-indicacoes-clinicas-da-eus-rfa\"><strong>Indica\u00e7\u00f5es Cl\u00ednicas da EUS-RFA<\/strong><\/h2>\n\n\n\n<p>A aplica\u00e7\u00e3o cl\u00ednica da EUS-RFA concentra-se em tr\u00eas cen\u00e1rios principais:<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-tumores-neuroendocrinos-pancreaticos-pannets\"><strong>Tumores Neuroend\u00f3crinos Pancre\u00e1ticos (PanNETs)<\/strong><\/h3>\n\n\n\n<p>A principal indica\u00e7\u00e3o atual envolve PanNETs bem diferenciados: <\/p>\n\n\n\n<p><strong>Crit\u00e9rios mais aceitos:<\/strong> <\/p>\n\n\n\n<p>\u2022Les\u00f5es \u2264 2 cm<br>\u2022Grau 1 (Classifica\u00e7\u00e3o histopatol\u00f3gica da <em>World Health Organization<\/em>&#8211; <em>WHO<\/em>)<br>\u2022Pacientes com alto risco cir\u00fargico ou que desejam evitar ressec\u00e7\u00e3o<br>\u2022Tumores funcionantes, especialmente insulinomas<\/p>\n\n\n\n<p>A EUS-RFA tem se mostrado particularmente eficaz em insulinomas, com potencial de se tornar alternativa padr\u00e3o \u00e0 cirurgia em casos selecionados.<\/p>\n\n\n\n<p><b><strong>Evid\u00eancias cl\u00ednicas <\/strong><\/b><em style=\"\">(Barthet et al., 2019<\/em> e 2021):<\/p>\n\n\n\n<p>\u2022Taxa de resposta completa: 85\u2013100%<br>\u2022Baixa recorr\u00eancia<br>\u2022Perfil de seguran\u00e7a favor\u00e1vel<\/p>\n\n\n\n<div style=\"height:31px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-lesoes-cisticas-pancreaticas-pcls\"><strong>Les\u00f5es C\u00edsticas Pancre\u00e1ticas (PCLs)<\/strong><\/h3>\n\n\n\n<p>A EUS-RFA surge como alternativa minimante invasiva em casos selecionados, especialmente em pacientes com contraindica\u00e7\u00e3o cir\u00fargica, alto risco operat\u00f3rio ou recusa de tratamento cir\u00fargico.<br>Atualmente sua aplica\u00e7\u00e3o permanece em evolu\u00e7\u00e3o e preferencialmente discutida em contexto multidisciplinar.<\/p>\n\n\n\n<p><strong>Poss\u00edveis cen\u00e1rios descritos na literatura:<\/strong><\/p>\n\n\n\n<p>\u2022IPMN de ramos secund\u00e1rios com crit\u00e9rios preocupantes (<em>Worrisome features<\/em>)<br>\u2022Les\u00f5es c\u00edsticas \u2265 3 cm<br>\u2022Parede espessada ou n\u00f3dulo mural<br>\u2022Pacientes inoper\u00e1veis ou com alto risco cir\u00fargico<\/p>\n\n\n\n<p><strong>Resultados cl\u00ednicos <\/strong>(<em>Barthet et al., 2019<\/em>):<\/p>\n\n\n\n<p>\u2022Resolu\u00e7\u00e3o completa em at\u00e9 65% em 12 meses<br>\u2022Redu\u00e7\u00e3o &gt;50% do volume c\u00edstico em 71% dos casos<br>\u2022Complica\u00e7\u00f5es maiores &lt;10%<\/p>\n\n\n\n<div style=\"height:31px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-adenocarcinoma-ductal-pancreatico-pdca\"><strong>Adenocarcinoma Ductal Pancre\u00e1tico (PDCA)<\/strong><\/h3>\n\n\n\n<p>Embora ainda em car\u00e1ter investigacional, a EUS-RFA vem sendo estuda como estrat\u00e9gia complementar no manejo do adenocarcinoma ductal pancre\u00e1tico.<\/p>\n\n\n\n<p><strong>Poss\u00edveis cen\u00e1rios de aplica\u00e7\u00f5es:<\/strong><\/p>\n\n\n\n<p>\u2022Doen\u00e7a localmente avan\u00e7ada irressec\u00e1vel<br>\u2022Pacientes n\u00e3o candidatos \u00e0 cirurgia<br>\u2022Terapia combinada com quimioterapia e\/ou radioterapia<br>\u2022Controle paliativo de sintomas<br>\u2022Redu\u00e7\u00e3o tumoral com potencial convers\u00e3o para ressecabilidade em casos selecionados<\/p>\n\n\n\n<p>Os dados dispon\u00edveis sugerem seguran\u00e7a aceit\u00e1vel, com eventos adversos predominantemente leves, entretanto ainda n\u00e3o est\u00e1 estabelecido como terapia padr\u00e3o, sendo necess\u00e1rio mais estudos prospectivos e ensaios cl\u00ednicos randomizados para melhor defini\u00e7\u00e3o de impacto em sobrevida, controle local e qualidade de vida.<\/p>\n\n\n\n<div style=\"height:31px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-seguranca-e-complicacoes\"><strong>Seguran\u00e7a e Complica\u00e7\u00f5es<\/strong><\/h2>\n\n\n\n<p>A EUS-RFA apresenta perfil de seguran\u00e7a favor\u00e1vel quando realizada por equipes experientes.<\/p>\n\n\n\n<p><strong>Complica\u00e7\u00f5es mais frequentes:<\/strong><\/p>\n\n\n\n<p>\u2022Dor abdominal transit\u00f3ria<br>\u2022Pancreatite leve<br>\u2022Estenose ductal (rara)<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-estrategias-para-reducao-de-complicacoes-barthet-et-al-2019\"><strong>Estrat\u00e9gias para redu\u00e7\u00e3o de complica\u00e7\u00f5es <em>(Barthet et al., 2019<\/em><\/strong><em><strong>)<\/strong><\/em><\/h3>\n\n\n\n<p>\u2022Controle rigoroso da temperatura do eletrodo<br>\u2022Uso de sistemas de resfriamento interno<br>\u2022Anti-inflamat\u00f3rios por via retal<br>\u2022Antibi\u00f3ticos profil\u00e1ticos em les\u00f5es c\u00edsticas <br>\u2022Dist\u00e2ncia segura do ducto pancre\u00e1tico principal (idealmente > 2mm) <br><\/p>\n\n\n\n<div style=\"height:31px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><a href=\"https:\/\/endoscopiaterapeutica.net\/pt\/?attachment_id=21381\"><img fetchpriority=\"high\" decoding=\"async\" width=\"1024\" height=\"682\" src=\"https:\/\/endoscopiaterapeutica.net\/pt\/wp-content\/uploads\/2026\/05\/mecanismo-de-acao-da-eus-1024x682.jpeg\" alt=\"Representa\u00e7\u00e3o esquem\u00e1tica do mecanismo de a\u00e7\u00e3o da EUS-RFA pancre\u00e1tica\" class=\"wp-image-21381\" srcset=\"https:\/\/endoscopiaterapeutica.net\/pt\/wp-content\/uploads\/2026\/05\/mecanismo-de-acao-da-eus-1024x682.jpeg?v=1778799761 1024w, https:\/\/endoscopiaterapeutica.net\/pt\/wp-content\/uploads\/2026\/05\/mecanismo-de-acao-da-eus-300x200.jpeg?v=1778799761 300w, https:\/\/endoscopiaterapeutica.net\/pt\/wp-content\/uploads\/2026\/05\/mecanismo-de-acao-da-eus-768x512.jpeg?v=1778799761 768w, https:\/\/endoscopiaterapeutica.net\/pt\/wp-content\/uploads\/2026\/05\/mecanismo-de-acao-da-eus-1170x780.jpeg?v=1778799761 1170w, https:\/\/endoscopiaterapeutica.net\/pt\/wp-content\/uploads\/2026\/05\/mecanismo-de-acao-da-eus-585x390.jpeg?v=1778799761 585w, https:\/\/endoscopiaterapeutica.net\/pt\/wp-content\/uploads\/2026\/05\/mecanismo-de-acao-da-eus-263x175.jpeg?v=1778799761 263w, https:\/\/endoscopiaterapeutica.net\/pt\/wp-content\/uploads\/2026\/05\/mecanismo-de-acao-da-eus.jpeg?v=1778799761 1280w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/a><\/figure>\n<\/div>\n\n\n<div style=\"height:31px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-perspectivas-futuras\"><strong>Perspectivas Futuras<\/strong><\/h2>\n\n\n\n<p>EUS-RFA est\u00e1 em r\u00e1pida evolu\u00e7\u00e3o e tende a ampliar seu papel no manejo minimamente invasivo das les\u00f5es pancre\u00e1ticas selecionadas, especialmente em PanNETs pequenos, les\u00f5es c\u00edsticas mucinosas e, potencialmente, no adenocarcinoma pancre\u00e1tico localmente avan\u00e7ado em estrat\u00e9gias multimodais.<\/p>\n\n\n\n<div style=\"height:31px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-conclusao\"><strong>Conclus\u00e3o<\/strong><\/h2>\n\n\n\n<p>A EUS-RFA representa uma estrat\u00e9gia terap\u00eautica minimamente invasiva promissora.<br>Apesar dos resultados encorajadores e do perfil de seguran\u00e7a favor\u00e1vel, sua incorpora\u00e7\u00e3o definitiva na pr\u00e1tica cl\u00ednica ainda depende de maior padroniza\u00e7\u00e3o t\u00e9cnica, defini\u00e7\u00e3o dos crit\u00e9rios ideais de indica\u00e7\u00e3o, al\u00e9m de estudos prospectivos e ensaios cl\u00ednicos randomizados com seguimento a longo prazo.<br>Com o avan\u00e7o das evid\u00eancias e refinamento t\u00e9cnico, a tend\u00eancia \u00e9 de maior incorpora\u00e7\u00e3o na pr\u00e1tica cl\u00ednica especializada.<\/p>\n\n\n\n<div style=\"height:31px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-referencias\"><strong>Refer\u00eancias<\/strong><\/h2>\n\n\n\n<ol class=\"wp-block-list\">\n<li>Karaisz FG, Elkelany OO, Davies B, et al. Review on EUS-guided radiofrequency ablation of pancreatic lesions. Diagnostics. 2023.<\/li>\n\n\n\n<li>Giardino A, Innamorati G, Ugel S, et al. Immunomodulation after radiofrequency ablation of locally advanced pancreatic cancer. Pancreatology. 2017;17:962\u2013966.<\/li>\n\n\n\n<li>Jarosova J, Macinga P, Krupickova L, et al. Impact of endoluminal radiofrequency ablation on immunity in pancreatic cancer and cholangiocarcinoma. Biomedicines. 2022;10:1331.<\/li>\n\n\n\n<li>Larghi A, Rizzatti G, Rimba\u015f M, et al. Endoscopic ultrasound-guided radiofrequency ablation for pancreatic neuroendocrine neoplasms. Endosc Ultrasound. 2019.<\/li>\n\n\n\n<li>Barthet M, Giovannini M, Lesavre N, et al. EUS-guided RFA for pancreatic neuroendocrine tumors and cystic neoplasms. Endoscopy. 2019.<\/li>\n\n\n\n<li>Barthet M, Giovannini M, Gasmi M, et al. Long-term outcomes after EUS-RFA. Endosc Int Open. 2021<\/li>\n\n\n\n<li>Oh D, Seo DW, Song T, et al. Clinical outcomes of EUS-RFA for unresectable pancreatic cancer. Endosc Ultrasound. 2022.<\/li>\n<\/ol>\n\n\n\n<p><\/p>\n\n\n\n<p class=\"has-pale-ocean-gradient-background has-background\">Quer saber mais sobre as evid\u00eancias atuais, indica\u00e7\u00f5es e resultados da EUS-RFA em tumores neuroend\u00f3crinos pancre\u00e1ticos? <a href=\"https:\/\/onlinelibrary.wiley.com\/doi\/10.1111\/den.14681\">Confira esta metan\u00e1lise recente sobre o tema.<\/a><\/p>\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-very-light-gray-to-cyan-bluish-gray-gradient-background has-background\">Botelho PFR. Abla\u00e7\u00e3o por Radiofrequ\u00eancia Guiada por EUS em Les\u00f5es Pancre\u00e1ticas: Indica\u00e7\u00f5es e Evid\u00eancias na Pr\u00e1tica Cl\u00ednica. Endoscopia Terapeutica 2026 Vol I. Dispon\u00edvel em: <a href=\"https:\/\/endoscopiaterapeutica.net\/pt\/?p=21380\" target=\"_blank\" rel=\"noreferrer noopener\">https:\/\/endoscopiaterapeutica.net\/pt\/assuntosgerais\/ablacao-por-radiofrequencia-guiada-por-eus-em-lesoes-pancreaticas-indicacoes-e-evidencias-na-pratica-clinica\/<\/a><\/p>\n\n\n\n<p><\/p>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>A abla\u00e7\u00e3o por radiofrequ\u00eancia guiada por ultrassonografia endosc\u00f3pica (EUS-RFA) tem se consolidado como uma&hellip;<\/p>\n","protected":false},"author":4014,"featured_media":21381,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_lmt_disableupdate":"","_lmt_disable":"","footnotes":""},"categories":[151],"tags":[755,489,356,409,871,313,808],"ano":[847],"tipo":[154],"volume":[263],"class_list":["post-21380","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-assuntosgerais","tag-cancer-pancreas","tag-cisto-pancreatico","tag-ecoendoscopia","tag-eus","tag-eus-rfa","tag-insulinoma","tag-lesao-de-pancreas","ano-847","tipo-ecoendoscopia","volume-volume-i"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.2 (Yoast SEO v27.4) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>EUS-RFA em les\u00f5es pancre\u00e1ticas: indica\u00e7\u00f5es e evid\u00eancias<\/title>\n<meta name=\"description\" content=\"A EUS-RFA tem emergido como alternativa minimamente invasiva no tratamento de les\u00f5es pancre\u00e1ticas. 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