{"id":33238,"date":"2025-01-28T07:53:25","date_gmt":"2025-01-28T10:53:25","guid":{"rendered":"https:\/\/www.grupomedcof.com.br\/blog\/?p=33238"},"modified":"2026-04-24T15:24:03","modified_gmt":"2026-04-24T18:24:03","slug":"hidronefrose-e-rvu-uma-condicao-importante-para-nefrologia-na-pediatria","status":"publish","type":"post","link":"https:\/\/www.grupomedcof.com.br\/blog\/hidronefrose-e-rvu-uma-condicao-importante-para-nefrologia-na-pediatria\/","title":{"rendered":"Hidronefrose e RVU: uma condi\u00e7\u00e3o importante para nefrologia na pediatria"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_74 counter-hierarchy ez-toc-counter ez-toc-transparent ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Sum\u00e1rio<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Alternar tabela de conte\u00fado\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/www.grupomedcof.com.br\/blog\/hidronefrose-e-rvu-uma-condicao-importante-para-nefrologia-na-pediatria\/#Hidronefrose\" >Hidronefrose<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.grupomedcof.com.br\/blog\/hidronefrose-e-rvu-uma-condicao-importante-para-nefrologia-na-pediatria\/#Etiologia_e_Manejo\" >Etiologia e Manejo<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.grupomedcof.com.br\/blog\/hidronefrose-e-rvu-uma-condicao-importante-para-nefrologia-na-pediatria\/#Refluxo_Vesicoureteral_RVU\" >Refluxo Vesicoureteral (RVU)<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.grupomedcof.com.br\/blog\/hidronefrose-e-rvu-uma-condicao-importante-para-nefrologia-na-pediatria\/#Classificacao_e_Diagnostico\" >Classifica\u00e7\u00e3o e Diagn\u00f3stico<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/www.grupomedcof.com.br\/blog\/hidronefrose-e-rvu-uma-condicao-importante-para-nefrologia-na-pediatria\/#Tratamento_e_Prognostico\" >Tratamento e Progn\u00f3stico<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/www.grupomedcof.com.br\/blog\/hidronefrose-e-rvu-uma-condicao-importante-para-nefrologia-na-pediatria\/#O_metodo_que_te_aprova\" >O m\u00e9todo que te aprova!<\/a><\/li><\/ul><\/nav><\/div>\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"576\" src=\"https:\/\/www.grupomedcof.com.br\/blog\/wp-content\/uploads\/2025\/01\/Blog-MedCof-38-1024x576.png\" alt=\"\" class=\"wp-image-33240\" srcset=\"https:\/\/www.grupomedcof.com.br\/blog\/wp-content\/uploads\/2025\/01\/Blog-MedCof-38-1024x576.png 1024w, https:\/\/www.grupomedcof.com.br\/blog\/wp-content\/uploads\/2025\/01\/Blog-MedCof-38-300x169.png 300w, https:\/\/www.grupomedcof.com.br\/blog\/wp-content\/uploads\/2025\/01\/Blog-MedCof-38-768x432.png 768w, https:\/\/www.grupomedcof.com.br\/blog\/wp-content\/uploads\/2025\/01\/Blog-MedCof-38-1536x864.png 1536w, https:\/\/www.grupomedcof.com.br\/blog\/wp-content\/uploads\/2025\/01\/Blog-MedCof-38-2048x1152.png 2048w, https:\/\/www.grupomedcof.com.br\/blog\/wp-content\/uploads\/2025\/01\/Blog-MedCof-38-747x420.png 747w, https:\/\/www.grupomedcof.com.br\/blog\/wp-content\/uploads\/2025\/01\/Blog-MedCof-38-150x84.png 150w, https:\/\/www.grupomedcof.com.br\/blog\/wp-content\/uploads\/2025\/01\/Blog-MedCof-38-696x392.png 696w, https:\/\/www.grupomedcof.com.br\/blog\/wp-content\/uploads\/2025\/01\/Blog-MedCof-38-1068x601.png 1068w, https:\/\/www.grupomedcof.com.br\/blog\/wp-content\/uploads\/2025\/01\/Blog-MedCof-38-1920x1080.png 1920w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">A <strong>nefrologia pedi\u00e1trica <\/strong>\u00e9 uma \u00e1rea fascinante e desafiadora da medicina, repleta de nuances e complexidades \u00fanicas. Dentro dessa intercess\u00e3o de resid\u00eancias encontramos condi\u00e7\u00f5es infantis que merecem marcante aten\u00e7\u00e3o, como a Hidronefrose e o Refluxo Vesicoureteral (RVU), por isso vamos relembrar alguns detalhes dessas anormalidades.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-hidronefrose\"><span class=\"ez-toc-section\" id=\"Hidronefrose\"><\/span><strong>Hidronefrose<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">A <strong>hidronefrose<\/strong>, caracterizada pela dilata\u00e7\u00e3o da pelve renal com ou sem dilata\u00e7\u00e3o dos c\u00e1lices renais, \u00e9 um achado comum na ultrassonografia pr\u00e9-natal, afetando cerca de 1% das gesta\u00e7\u00f5es. O diagn\u00f3stico \u00e9 baseado no di\u00e2metro anteroposterior da pelve renal (DPR), sendo considerado significativo quando:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>4 mm entre 18 e 22 semanas de gesta\u00e7\u00e3o<\/li>\n\n\n\n<li>7-10 mm no terceiro trimestre de gesta\u00e7\u00e3o<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u00c9 importante notar que a hidronefrose transit\u00f3ria \u00e9 a causa mais comum, representando 41 a 88% dos casos. Esta condi\u00e7\u00e3o geralmente se resolve com o tempo e n\u00e3o tem implica\u00e7\u00f5es cl\u00ednicas significativas.<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/lh7-rt.googleusercontent.com\/docsz\/AD_4nXdXkSMMO2L1f9zk3sEaT3rSF-PatxoX9QR5aXNJtJFqO9G79vhB7JyiGbUm1BrrGyaNxjfPOexoSXmL8UeTYg52oR-Bst8F3F2MatbJFHNeYp7YuHU3XmoCPT0u9d0Exj2h2W0TOQ?key=tTVXodDhQd9gG6iyYE-PMBeK\" alt=\"\"\/><figcaption class=\"wp-element-caption\">Fonte: <a href=\"https:\/\/rmmg.org\/artigo\/detalhes\/624\">https:\/\/rmmg.org\/artigo\/detalhes\/624<\/a>\u00a0<\/figcaption><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-etiologia-e-manejo\"><span class=\"ez-toc-section\" id=\"Etiologia_e_Manejo\"><\/span><strong>Etiologia e Manejo<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Quando a hidronefrose persiste ou \u00e9 mais grave, devemos considerar as anomalias cong\u00eanitas do rim e do trato urin\u00e1rio (CAKUT). A obstru\u00e7\u00e3o da jun\u00e7\u00e3o ureterop\u00e9lvica (JUP) \u00e9 o diagn\u00f3stico mais comum, seguida pelo refluxo vesicoureteral (RVU).<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">O manejo da hidronefrose inclui:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u00a0\u00a0Ultrassonografia p\u00f3s-natal a partir do 7\u00ba dia de vida<\/li>\n\n\n\n<li>Antibioticoprofilaxia em casos de DPR > 8mm<\/li>\n\n\n\n<li>Investiga\u00e7\u00e3o adicional com uretrocistografia miccional (UCM) ou cintilografia renal em casos de hidronefrose acentuada ou dilata\u00e7\u00e3o ureteral<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-refluxo-vesicoureteral-rvu\"><span class=\"ez-toc-section\" id=\"Refluxo_Vesicoureteral_RVU\"><\/span><strong>Refluxo Vesicoureteral (RVU)<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">O <strong>RVU<\/strong> \u00e9 definido como a passagem retr\u00f3grada de urina da bexiga para o trato urin\u00e1rio superior. Esta condi\u00e7\u00e3o \u00e9 particularmente importante devido ao risco de pielonefrite, inj\u00faria renal e potenciais sequelas, incluindo perda de fun\u00e7\u00e3o renal.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-classificacao-e-diagnostico\"><span class=\"ez-toc-section\" id=\"Classificacao_e_Diagnostico\"><\/span><strong>Classifica\u00e7\u00e3o e Diagn\u00f3stico<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">O RVU \u00e9 classificado em cinco graus, baseados na extens\u00e3o do refluxo e na dilata\u00e7\u00e3o do sistema coletor:<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/lh7-rt.googleusercontent.com\/docsz\/AD_4nXdWbbNPuOU1-mP41WFEl7B_MMrlPhlioafTbVrSRWHsalpxLt3MfXaeZvufYVTF8b49uWhVjyi3IEtVse4PsTbraz1ze7ZHlh2e1Oj6Jb6nHLtJuAsA-AC1T5RjMyP-2X325vbLcQ?key=tTVXodDhQd9gG6iyYE-PMBeK\" alt=\"\"\/><figcaption class=\"wp-element-caption\">Fonte: Acervo de Aulas do Grupo MedCof.<\/figcaption><\/figure>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Grau 1: Refluxo limitado ao ureter<\/li>\n\n\n\n<li>Grau 2: Refluxo atinge pelve e c\u00e1lices sem dilata\u00e7\u00e3o<\/li>\n\n\n\n<li>Grau 3: Leve dilata\u00e7\u00e3o da pelve e\/ou c\u00e1lices<\/li>\n\n\n\n<li>Grau 4: Moderada dilata\u00e7\u00e3o com tortuosidade do ureter<\/li>\n\n\n\n<li>Grau 5: Dilata\u00e7\u00e3o grave com perda das impress\u00f5es papilares<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">O diagn\u00f3stico \u00e9 realizado atrav\u00e9s de uretrocistografia miccional com contraste ou cistografia com radionucl\u00eddeo.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-tratamento-e-prognostico\"><span class=\"ez-toc-section\" id=\"Tratamento_e_Prognostico\"><\/span><strong>Tratamento e Progn\u00f3stico<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">O manejo do RVU varia de acordo com a gravidade:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Graus menores: Tend\u00eancia a evitar antibioticoterapia, focando na corre\u00e7\u00e3o de fatores predisponentes como constipa\u00e7\u00e3o e fimose<\/li>\n\n\n\n<li>Graus avan\u00e7ados: Profilaxia antibi\u00f3tica e, em alguns casos, interven\u00e7\u00e3o cir\u00fargica<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">O progn\u00f3stico est\u00e1 relacionado ao risco de infec\u00e7\u00f5es urin\u00e1rias recorrentes e potencial redu\u00e7\u00e3o do par\u00eanquima renal.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"o-m\u00e9todo-que-te-aprova\"><span class=\"ez-toc-section\" id=\"O_metodo_que_te_aprova\"><\/span><strong>O m\u00e9todo que te aprova!<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Quer alcan\u00e7ar a aprova\u00e7\u00e3o nas provas de resid\u00eancia m\u00e9dica? Ent\u00e3o seja um&nbsp;<a href=\"https:\/\/www.grupomedcof.com.br\/home\/\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>MedCoffer<\/strong><\/a>! Aqui, te ajudaremos na busca da aprova\u00e7\u00e3o com conte\u00fados de qualidade e uma&nbsp;<a href=\"https:\/\/www.grupomedcof.com.br\/blog\/presenca-da-medcof-nas-aprovacoes-em-residencia-medica-no-brasil\/\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>metodologia que j\u00e1 aprovou mais de 10 mil residentes no pa\u00eds<\/strong><\/a>! Por fim, acesse o nosso<a href=\"https:\/\/www.youtube.com\/@GrupoMedcof\/featured\" target=\"_blank\" rel=\"noreferrer noopener\">&nbsp;<strong>canal do youtube&nbsp;<\/strong><\/a>para ver o nosso material.<\/p>\n\n\n\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<div class=\"youtube-embed\" data-video_id=\"g-Oh3ybw3Pc\"><iframe loading=\"lazy\" title=\"Tr\u00eas passos para criar uma rotina de sucesso para o internato.\" width=\"696\" height=\"392\" src=\"https:\/\/www.youtube.com\/embed\/g-Oh3ybw3Pc?feature=oembed&#038;enablejsapi=1\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe><\/div>\n<\/div><\/figure>\n","protected":false},"excerpt":{"rendered":"<p>A nefrologia pedi\u00e1trica \u00e9 uma \u00e1rea fascinante e desafiadora da medicina, repleta de nuances e complexidades \u00fanicas. Conhe\u00e7a mais!<\/p>\n","protected":false},"author":21,"featured_media":33240,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[120],"tags":[2503,1416,2504],"ppma_author":[3617],"class_list":["post-33238","post","type-post","status-publish","format-standard","has-post-thumbnail","category-pediatria","tag-hidronefrose","tag-nefrologia","tag-refluxo-vesicoureteral"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.6 (Yoast SEO v27.6) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Hidronefrose e RVU na Nefrologia Pedi\u00e1trica | Medcof<\/title>\n<meta name=\"description\" content=\"A nefrologia pedi\u00e1trica \u00e9 uma \u00e1rea fascinante e desafiadora da medicina, repleta de nuances e complexidades \u00fanicas. 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