{"id":12461,"date":"2025-05-13T08:12:57","date_gmt":"2025-05-13T12:12:57","guid":{"rendered":"https:\/\/www.rigicon.com\/glossary-term\/artificial-urinary-sphincter-aus\/"},"modified":"2026-03-22T06:33:31","modified_gmt":"2026-03-22T10:33:31","slug":"esfincter-urinario-artificial-aus","status":"publish","type":"glossary-term","link":"https:\/\/www.rigicon.com\/pt-br\/glossary-term\/esfincter-urinario-artificial-aus\/","title":{"rendered":"Esf\u00edncter Urin\u00e1rio Artificial (AUS)"},"content":{"rendered":"","protected":false},"excerpt":{"rendered":"","protected":false},"featured_media":0,"template":"","glossary-category":[106],"glossary-product":[108,107],"class_list":["post-12461","glossary-term","type-glossary-term","status-publish","hentry","glossary-category-male-stress-urinary-incontinence","glossary-product-conticlassic-aus","glossary-product-contireflex-enhanced-aus"],"acf":{"gt-definition":"<p>Um esf\u00edncter urin\u00e1rio artificial (AUS) \u00e9 um dispositivo m\u00e9dico implant\u00e1vel projetado para tratar a incontin\u00eancia urin\u00e1ria, particularmente a incontin\u00eancia urin\u00e1ria de esfor\u00e7o, imitando a fun\u00e7\u00e3o do esf\u00edncter urin\u00e1rio natural.\u00b9\u02d2\u00b2 \u00c9 um sistema multicomponente, geralmente composto por tr\u00eas partes: um manguito uretral, um bal\u00e3o regulador de press\u00e3o e uma bomba de controle.\u00b3<\/p>\n<p>O manguito uretral \u00e9 colocado ao redor da uretra e, quando preenchido com l\u00edquido, comprime a uretra para evitar vazamento de urina.\u00b9\u02d2\u00b2\u02d2\u00b3 O bal\u00e3o regulador de press\u00e3o \u00e9 normalmente implantado no abd\u00f4men e mant\u00e9m uma press\u00e3o definida dentro do sistema, garantindo que o manguito permane\u00e7a efetivamente fechado.\u00b9\u02d2\u00b2\u02d2\u00b3 A bomba de controle geralmente \u00e9 colocada no escroto (em homens) ou nos l\u00e1bios (em mulheres) e permite que o paciente opere manualmente o dispositivo.\u00b9\u02d2\u00b2<\/p>\n<p>Para urinar, o paciente aperta a bomba, que move o fluido do balonete uretral para o bal\u00e3o.\u00b9\u02d2\u00b2 Isso esvazia o balonete, liberando a press\u00e3o na uretra e permitindo que a urina flua. Ap\u00f3s alguns minutos, o fluido retorna automaticamente do bal\u00e3o para o manguito, restabelecendo a contin\u00eancia.\u00b9\u02d2\u00b2 O objetivo principal do AUS \u00e9 restaurar o controle urin\u00e1rio e melhorar a qualidade de vida de indiv\u00edduos com incontin\u00eancia urin\u00e1ria significativa que n\u00e3o respondeu a outros tratamentos.\u00b9\u02d2\u00b3<\/p>\n<p>O esf\u00edncter urin\u00e1rio artificial (EUA) \u00e9 um dispositivo implant\u00e1vel de tr\u00eas componentes utilizado para o tratamento da incontin\u00eancia urin\u00e1ria de esfor\u00e7o moderada a grave, sendo o padr\u00e3o-ouro para incontin\u00eancia masculina p\u00f3s-prostatectomia conforme as diretrizes da EAU. Consiste em um cuff (manguito) uretral, uma bomba de controle escrotal e um bal\u00e3o regulador de press\u00e3o. O cuff comprime a uretra para manter a contin\u00eancia e \u00e9 aberto pelo paciente para mic\u00e7\u00e3o.<\/p>","gt-synonyms":"Esf\u00edncter Uretral Artificial, dispositivo AUS, Esf\u00edncter Urin\u00e1rio Implant\u00e1vel","gt-citation":"[1] Cleveland Clinic. Artificial Urinary Sphincter: Placement & Success Rate. https:\/\/my.clevelandclinic.org\/health\/treatments\/artificial-urinary-sphincter  (Accessed May 13, 2025).\n\n[2] Memorial Sloan Kettering Cancer Center. About Your Artificial Urinary Sphincter (AUS). https:\/\/www.mskcc.org\/cancer-care\/patient-education\/artificial-urinary-sphincter  (Accessed May 13, 2025).\n\n[3] Frazier RL, Jones ME, Hofer MD. Artificial Urinary Sphincter Complications: A Narrative Review. J Clin Med. 2024 Mar 26;13(7):1913. doi: 10.3390\/jcm13071913. PMID: 38610677; PMCID: PMC11012791.","gt-clinical-context":"<p>O Esf\u00edncter Urin\u00e1rio Artificial (EUA) \u00e9 usado principalmente para tratar incontin\u00eancia urin\u00e1ria de esfor\u00e7o (IUE) moderada a grave, mais comumente em homens ap\u00f3s cirurgia de pr\u00f3stata (por exemplo, prostatectomia radical) ou radioterapia da pr\u00f3stata, que pode danificar o esf\u00edncter urin\u00e1rio natural.\u00b9\u02d2\u00b2\u02d2\u00b3 \u00c9 considerado um tratamento padr\u00e3o ouro quando medidas conservadoras como exerc\u00edcios para o assoalho p\u00e9lvico, mudan\u00e7as no estilo de vida ou medicamentos s\u00e3o comprovadas insuficiente.\u00b9\u02d2\u00b3<\/p>\n<p>Os crit\u00e9rios de sele\u00e7\u00e3o de pacientes geralmente envolvem indiv\u00edduos com IUE persistente que se sentem incomodados com o vazamento e s\u00e3o candidatos adequados para cirurgia. Fatores como gravidade da incontin\u00eancia, tratamentos anteriores, destreza do paciente (para operar a bomba), fun\u00e7\u00e3o cognitiva e estado geral de sa\u00fade s\u00e3o considerados.\u00b3 Pacientes com hist\u00f3rico de estenose uretral, radia\u00e7\u00e3o p\u00e9lvica pr\u00e9via ou cirurgia uretral anterior podem apresentar maior risco de complica\u00e7\u00f5es e exigir avalia\u00e7\u00e3o cuidadosa.\u00b3<\/p>\n<p>A implanta\u00e7\u00e3o cir\u00fargica de um AUS envolve a coloca\u00e7\u00e3o dos tr\u00eas componentes (manguito, bal\u00e3o, bomba) atrav\u00e9s de pequenas incis\u00f5es, geralmente uma no per\u00edneo (entre o escroto e o \u00e2nus) para o manguito e a bomba, e outra na parte inferior do abd\u00f4men para o bal\u00e3o.\u00b2 O dispositivo normalmente \u00e9 deixado desativado por v\u00e1rias semanas (geralmente 6-8 semanas) ap\u00f3s a cirurgia para permitir a cicatriza\u00e7\u00e3o antes de ser ativado para usar.\u00b2<\/p>\n<p>Os resultados esperados s\u00e3o geralmente positivos, com altas taxas de satisfa\u00e7\u00e3o do paciente e melhora significativa na contin\u00eancia.\u00b3 Estudos, como o ensaio MASTER, relataram taxas de contin\u00eancia em torno de 84% ap\u00f3s a coloca\u00e7\u00e3o do AUS, com mais de 90% dos homens satisfeitos com sua contin\u00eancia e dispostos a recomendar o procedimento a outras pessoas com sintomas semelhantes.\u00b3 No entanto, complica\u00e7\u00f5es potenciais podem ocorrer, incluindo infec\u00e7\u00e3o, eros\u00e3o do manguito no uretra, falha mec\u00e2nica do dispositivo, dor, sangramento ou incontin\u00eancia persistente.\u00b9\u02d2\u00b2\u02d2\u00b3 O dispositivo tamb\u00e9m pode se desgastar com o tempo, normalmente durando de 8 a 10 anos, e pode exigir revis\u00e3o ou cirurgia de substitui\u00e7\u00e3o.\u00b9\u02d2\u00b2<\/p>\n<p>A EAU 2023 recomenda o EUA como tratamento de escolha para incontin\u00eancia de esfor\u00e7o grave masculina, com taxas de contin\u00eancia social de 79-90%. O dispositivo requer ativa\u00e7\u00e3o 6 semanas ap\u00f3s a cirurgia. As complica\u00e7\u00f5es incluem eros\u00e3o uretral (3-8%), falha mec\u00e2nica (5-15% em 5 anos) e infec\u00e7\u00e3o (1-3%). A desativa\u00e7\u00e3o noturna \u00e9 recomendada para preservar o tecido uretral. Revis\u00f5es podem ser necess\u00e1rias ao longo da vida do dispositivo.<\/p>","gt-related-evidence":null,"gt-featured":true,"gt-ai-referenced":false,"gt-view-count":50},"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.9 (Yoast SEO v27.9) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Esf\u00edncter Urin\u00e1rio Artificial (EUA\/AUS): Guia Completo | Rigicon<\/title>\n<meta name=\"description\" content=\"Guia sobre o esf\u00edncter urin\u00e1rio artificial para incontin\u00eancia masculina: indica\u00e7\u00f5es, cirurgia, funcionamento e resultados. 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