{"id":12658,"date":"2025-07-09T09:52:52","date_gmt":"2025-07-09T13:52:52","guid":{"rendered":"https:\/\/www.rigicon.com\/glossary-term\/urinary-retention\/"},"modified":"2025-07-09T09:52:52","modified_gmt":"2025-07-09T13:52:52","slug":"retencao-urinaria","status":"publish","type":"glossary-term","link":"https:\/\/www.rigicon.com\/pt-br\/glossary-term\/retencao-urinaria\/","title":{"rendered":"Reten\u00e7\u00e3o Urin\u00e1ria"},"content":{"rendered":"","protected":false},"excerpt":{"rendered":"","protected":false},"featured_media":0,"template":"","glossary-category":[111],"glossary-product":[104,105],"class_list":["post-12658","glossary-term","type-glossary-term","status-publish","hentry","glossary-category-urological-disorders","glossary-product-infla10-pulse-ipp-series","glossary-product-rigi10-malleable-penile-prosthesis"],"acf":{"gt-definition":"<p>A reten\u00e7\u00e3o urin\u00e1ria \u00e9 uma condi\u00e7\u00e3o na qual um indiv\u00edduo n\u00e3o consegue esvaziar toda a urina da bexiga. Ocorre quando a bexiga n\u00e3o se esvazia completamente durante a mic\u00e7\u00e3o, resultando em urina residual permanecendo na bexiga.<sup>1<\/sup> Essa condi\u00e7\u00e3o pode se manifestar de duas formas principais: reten\u00e7\u00e3o urin\u00e1ria aguda, caracterizada por uma incapacidade s\u00fabita de urinar apesar de estar com a bexiga cheia, muitas vezes acompanhada de dor e desconforto na parte inferior do abdome; e reten\u00e7\u00e3o urin\u00e1ria cr\u00f4nica, que se desenvolve gradualmente ao longo do tempo com esvaziamento incompleto da bexiga.<sup>2<\/sup><\/p>\n \n <p>A fisiopatologia envolve um bloqueio que impede parcial ou totalmente o fluxo de urina ou a incapacidade da bexiga de manter uma for\u00e7a contr\u00e1til forte o suficiente para expelir toda a urina.<sup>3<\/sup> A mic\u00e7\u00e3o normal requer integra\u00e7\u00e3o complexa e coordena\u00e7\u00e3o de fun\u00e7\u00f5es neurol\u00f3gicas com nervos p\u00e9lvicos simp\u00e1ticos, parassimp\u00e1ticos e som\u00e1ticos para facilitar o armazenamento e a mic\u00e7\u00e3o adequados da bexiga.<sup>4<\/sup> Quando essa coordena\u00e7\u00e3o \u00e9 interrompida devido a problemas mec\u00e2nicos obstru\u00e7\u00e3o, disfun\u00e7\u00e3o neurol\u00f3gica ou efeitos de medicamentos, pode ocorrer reten\u00e7\u00e3o urin\u00e1ria.<\/p>\n<p>A reten\u00e7\u00e3o urin\u00e1ria \u00e9 a incapacidade de esvaziar a bexiga parcial ou completamente. Classificada como aguda (in\u00edcio s\u00fabito, dolorosa, requer cateterismo imediato) ou cr\u00f4nica (ac\u00famulo progressivo indolor com volumes residuais elevados). As causas mais comuns em homens s\u00e3o HPB (53%), medicamentos (24%), p\u00f3s-operat\u00f3rio (7%) e causas neurol\u00f3gicas (7%).<\/p>","gt-synonyms":"Reten\u00e7\u00e3o vesical, Esvaziamento incompleto da bexiga, Obstru\u00e7\u00e3o urin\u00e1ria, Disfun\u00e7\u00e3o miccional, Reten\u00e7\u00e3o urin\u00e1ria aguda (AUR), Reten\u00e7\u00e3o urin\u00e1ria cr\u00f4nica (CUR), Urina residual p\u00f3s-miccional, Estase urin\u00e1ria","gt-citation":"[1] Selius BA, Subedi R. Urinary retention in adults: diagnosis and initial management. Am Fam Physician. 2008;77(5):643-650. DOI: https:\/\/www.aafp.org\/pubs\/afp\/issues\/2008\/0301\/p643.html\n\n[2] Dougherty JM, Aeddula NR. Male Urinary Retention. In: StatPearls. StatPearls Publishing; 2024. PMID: 30855914. DOI: https:\/\/www.ncbi.nlm.nih.gov\/books\/NBK538499\/\n\n[3] National Institute of Diabetes and Digestive and Kidney Diseases. Urinary Retention. 2019. https:\/\/www.niddk.nih.gov\/health-information\/urologic-diseases\/urinary-retention\n\n[4] Roehrborn CG. Acute urinary retention: risks and management. Rev Urol. 2005;7(Suppl 4):S31-S41. PMID: 16986053. DOI: https:\/\/www.ncbi.nlm.nih.gov\/pmc\/articles\/PMC1477606\/\n\n[5] Kaplan SA, Wein AJ, Staskin DR, Roehrborn CG, Steers WD. Urinary retention and post-void residual urine in men: separating truth from tradition. J Urol. 2008;180(1):47-54. DOI: 10.1016\/j.juro.2008.03.027","gt-clinical-context":"<p>A reten\u00e7\u00e3o urin\u00e1ria \u00e9 uma condi\u00e7\u00e3o urol\u00f3gica significativa que requer avalia\u00e7\u00e3o e manejo imediatos, principalmente na sua forma aguda.<sup>1<\/sup> A apresenta\u00e7\u00e3o cl\u00ednica varia dependendo se a reten\u00e7\u00e3o \u00e9 aguda ou cr\u00f4nica. A reten\u00e7\u00e3o urin\u00e1ria aguda apresenta-se como uma emerg\u00eancia m\u00e9dica caracterizada pela incapacidade s\u00fabita de urinar apesar de uma bexiga distendida, muitas vezes acompanhada de intensa dor suprap\u00fabica, urg\u00eancia e desconforto.<sup>2<\/sup> A reten\u00e7\u00e3o urin\u00e1ria cr\u00f4nica geralmente se apresenta com sintomas mais sutis, como jato urin\u00e1rio fraco, hesita\u00e7\u00e3o, intermit\u00eancia, frequ\u00eancia, noct\u00faria e sensa\u00e7\u00e3o de esvaziamento incompleto.<sup>3<\/sup><\/p>\n \n <p>Nos homens, a hiperplasia prost\u00e1tica benigna (HPB) \u00e9 a causa mais comum de reten\u00e7\u00e3o urin\u00e1ria, com aproximadamente 10% dos homens com mais de 70 anos e at\u00e9 30% dos homens com mais de 80 anos desenvolvendo essa condi\u00e7\u00e3o.<sup>4<\/sup> Nas mulheres, a reten\u00e7\u00e3o urin\u00e1ria \u00e9 menos comum e frequentemente associada a dist\u00farbios neurol\u00f3gicos, prolapso de \u00f3rg\u00e3os p\u00e9lvicos ou complica\u00e7\u00f5es p\u00f3s-cir\u00fargicas.<\/p>\n \n <p>A avalia\u00e7\u00e3o diagn\u00f3stica inclui hist\u00f3rico m\u00e9dico completo, exame f\u00edsico, medi\u00e7\u00e3o de urina residual p\u00f3s-miccional, exame de urina, testes de fun\u00e7\u00e3o renal e, em alguns casos, estudos urodin\u00e2micos ou cistoscopia.<sup>5<\/sup> As estrat\u00e9gias de manejo dependem da causa subjacente e podem incluir cateterismo para al\u00edvio imediato, interven\u00e7\u00f5es farmacol\u00f3gicas, como alfa-bloqueadores ou inibidores da 5-alfa redutase para reten\u00e7\u00e3o relacionada \u00e0 HBP, ou interven\u00e7\u00f5es cir\u00fargicas para causas obstrutivas.<\/p>\n \n <p>As complica\u00e7\u00f5es da reten\u00e7\u00e3o urin\u00e1ria n\u00e3o tratada incluem infec\u00e7\u00f5es do trato urin\u00e1rio, danos \u00e0 bexiga por distens\u00e3o excessiva, hidronefrose e insufici\u00eancia renal.<sup>4<\/sup> Portanto, o reconhecimento precoce e o manejo adequado s\u00e3o essenciais para prevenir sequelas em longo prazo.<\/p>\n<p>A EAU 2023 recomenda cateterismo uretral como tratamento imediato da reten\u00e7\u00e3o aguda. Em falha de cateterismo uretral, a cistostomia suprap\u00fabica \u00e9 alternativa. Ap\u00f3s descompress\u00e3o, alfa-bloqueadores (tansulosina) por 3 dias antes da tentativa de retirada do cateter (TWOC - trial without catheter) aumentam o sucesso de mic\u00e7\u00e3o espont\u00e2nea em 50-60%. A reten\u00e7\u00e3o cr\u00f4nica requer investiga\u00e7\u00e3o e tratamento da causa: cirurgia prost\u00e1tica para HPB, cateterismo intermitente para causas neurol\u00f3gicas.<\/p>","gt-related-evidence":null,"gt-featured":true,"gt-ai-referenced":false,"gt-view-count":94},"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.7 (Yoast SEO v27.8) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Reten\u00e7\u00e3o Urin\u00e1ria: Causas e Tratamento de Emerg\u00eancia | Rigicon<\/title>\n<meta name=\"description\" content=\"Guia sobre reten\u00e7\u00e3o urin\u00e1ria aguda e cr\u00f4nica: causas prost\u00e1ticas, neurol\u00f3gicas e medicamentosas. Cateterismo e manejo definitivo. 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