{"id":12651,"date":"2025-07-09T09:48:22","date_gmt":"2025-07-09T13:48:22","guid":{"rendered":"https:\/\/www.rigicon.com\/glossary-term\/overactive-bladder\/"},"modified":"2025-07-09T09:48:22","modified_gmt":"2025-07-09T13:48:22","slug":"bexiga-hiperativa","status":"publish","type":"glossary-term","link":"https:\/\/www.rigicon.com\/pt-br\/glossary-term\/bexiga-hiperativa\/","title":{"rendered":"Bexiga Hiperativa"},"content":{"rendered":"","protected":false},"excerpt":{"rendered":"","protected":false},"featured_media":0,"template":"","glossary-category":[126],"glossary-product":[108,107],"class_list":["post-12651","glossary-term","type-glossary-term","status-publish","hentry","glossary-category-urological-conditions","glossary-product-conticlassic-aus","glossary-product-contireflex-enhanced-aus"],"acf":{"gt-definition":"<p>Bexiga hiperativa (BH) \u00e9 uma condi\u00e7\u00e3o urol\u00f3gica cr\u00f4nica caracterizada por uma vontade repentina e irresist\u00edvel de urinar, dif\u00edcil de controlar.<sup>1<\/sup> \u00c9 definida pela Sociedade Internacional de Contin\u00eancia como uma condi\u00e7\u00e3o com sintomas caracter\u00edsticos de \"urg\u00eancia urin\u00e1ria, geralmente acompanhada de frequ\u00eancia e noct\u00faria, com ou sem incontin\u00eancia de urg\u00eancia, na aus\u00eancia de infec\u00e7\u00e3o do trato urin\u00e1rio ou outra patologia \u00f3bvia.\"<sup>2<\/sup> A bexiga hiperativa ocorre quando os m\u00fasculos da bexiga se contraem. involuntariamente, mesmo quando o volume de urina na bexiga est\u00e1 baixo, causando uma necessidade urgente de urinar.<sup>3<\/sup> Esta condi\u00e7\u00e3o afeta o funcionamento normal dos mecanismos de armazenamento e esvaziamento da bexiga, interrompendo as complexas intera\u00e7\u00f5es entre os sistemas nervosos central e perif\u00e9rico que controlam a mic\u00e7\u00e3o.<sup>4<\/sup> O m\u00fasculo detrusor, que \u00e9 densamente inervado, pode tornar-se hiperativo ou hipersens\u00edvel, levando a contra\u00e7\u00f5es inadequadas e \u00e0 sensa\u00e7\u00e3o de urg\u00eancia.<sup>5<\/sup><\/p>\n<p>A bexiga hiperativa (BH) \u00e9 uma s\u00edndrome cl\u00ednica definida pela presen\u00e7a de urg\u00eancia urin\u00e1ria, geralmente acompanhada de frequ\u00eancia aumentada e noct\u00faria, com ou sem incontin\u00eancia de urg\u00eancia. Afeta aproximadamente 12-17% da popula\u00e7\u00e3o adulta, com preval\u00eancia crescente com a idade. A fisiopatologia envolve contra\u00e7\u00f5es involunt\u00e1rias do m\u00fasculo detrusor durante a fase de enchimento vesical.<\/p>","gt-synonyms":"OAB, S\u00edndrome da Bexiga Hiperativa, Incontin\u00eancia de Urg\u00eancia, S\u00edndrome de Frequ\u00eancia de Urg\u00eancia, Hiperatividade do Detrusor, Detrusor Hiperativo, Bexiga Irrit\u00e1vel","gt-citation":"[1] Stewart WF, Van Rooyen JB, Cundiff GW, et al. Prevalence and burden of overactive bladder in the United States. World J Urol. 2003;20(6):327-336. DOI: 10.1007\/s00345-002-0301-4\n\n[2] Haylen BT, de Ridder D, Freeman RM, et al. An International Urogynecological Association (IUGA)\/International Continence Society (ICS) joint report on the terminology for female pelvic floor dysfunction. Neurourol Urodyn. 2010;29(1):4-20. DOI: 10.1002\/nau.20798\n\n[3] Leron E, Weintraub AY, Mastrolia SA, Schwarzman P. Overactive Bladder Syndrome: Evaluation and Management. Curr Urol. 2018;11(3):117-125. DOI: 10.1159\/000447205\n\n[4] Chapple CR, Artibani W, Cardozo LD, et al. The role of urinary urgency and its measurement in the overactive bladder symptom syndrome: current concepts and future prospects. BJU Int. 2005;95(3):335-340. DOI: 10.1111\/j.1464-410X.2005.05294.x\n\n[5] Abrams P, Cardozo L, Fall M, et al. The standardisation of terminology of lower urinary tract function: report from the Standardisation Sub-committee of the International Continence Society. Neurourol Urodyn. 2002;21(2):167-178. DOI: 10.1002\/nau.10052","gt-clinical-context":"<p>A bexiga hiperativa afeta aproximadamente 16,5% da popula\u00e7\u00e3o adulta, com preval\u00eancia aumentando com a idade.<sup>1<\/sup> Ela impacta significativamente a qualidade de vida, afetando as atividades di\u00e1rias, a produtividade no trabalho, as intera\u00e7\u00f5es sociais, os padr\u00f5es de sono e o bem-estar psicol\u00f3gico.<sup>3<\/sup><\/p>\n <p>A avalia\u00e7\u00e3o cl\u00ednica da BH come\u00e7a com um hist\u00f3rico completo do paciente, com foco nos sintomas urin\u00e1rios, sua dura\u00e7\u00e3o, gravidade e impacto na qualidade de vida.<sup>3<\/sup> Os m\u00e9dicos devem perguntar sobre frequ\u00eancia urin\u00e1ria (normalmente definida como mic\u00e7\u00e3o oito ou mais vezes em 24 horas), urg\u00eancia (desejo repentino e convincente de urinar que \u00e9 dif\u00edcil de adiar), noct\u00faria (acordar \u00e0 noite para urinar) e incontin\u00eancia de urg\u00eancia (perda involunt\u00e1ria acompanhada de urg\u00eancia).<sup>5<\/sup> Um di\u00e1rio da bexiga \u00e9 frequentemente recomendado para documentar padr\u00f5es de mic\u00e7\u00e3o, ingest\u00e3o de l\u00edquidos e epis\u00f3dios de incontin\u00eancia.<sup>3<\/sup><\/p>\n <p>A investiga\u00e7\u00e3o diagn\u00f3stica inclui exame de urina para descartar infec\u00e7\u00e3o, exames de sangue para avaliar a fun\u00e7\u00e3o renal e dist\u00farbios metab\u00f3licos e, em alguns casos, estudos urodin\u00e2micos para avaliar a fun\u00e7\u00e3o da bexiga.<sup>3<\/sup> A cistoscopia pode ser realizada para excluir patologias da bexiga, como tumores ou c\u00e1lculos.<sup>3<\/sup><\/p>\n <p>O tratamento segue uma abordagem gradual, come\u00e7ando com modifica\u00e7\u00f5es comportamentais, como controle de fluidos, treinamento da bexiga e exerc\u00edcios do assoalho p\u00e9lvico.<sup>4<\/sup> A farmacoterapia normalmente envolve agentes antimuscar\u00ednicos (como oxibutinina, tolterodina, solifenacina) ou agonistas dos receptores \u03b23-adren\u00e9rgicos (mirabegron), que t\u00eam como alvo os mecanismos subjacentes da hiperatividade do detrusor.<sup>4<\/sup> Para casos refrat\u00e1rios, terapias avan\u00e7adas incluem inje\u00e7\u00f5es de toxina botul\u00ednica no m\u00fasculo detrusor, neuromodula\u00e7\u00e3o sacral ou estimula\u00e7\u00e3o do nervo tibial posterior.<sup>5<\/sup> As interven\u00e7\u00f5es cir\u00fargicas s\u00e3o reservadas para casos graves e resistentes ao tratamento.<sup>4<\/sup><\/p>\n <p>A sele\u00e7\u00e3o do paciente para tratamento depende da gravidade dos sintomas, comorbidades, contra-indica\u00e7\u00f5es de medicamentos e prefer\u00eancias do paciente.<sup>3<\/sup> Os resultados esperados variam, com a maioria dos pacientes apresentando melhora significativa dos sintomas em vez de resolu\u00e7\u00e3o completa.<sup>4<\/sup> O manejo a longo prazo geralmente requer uma combina\u00e7\u00e3o de abordagens e ajustes cont\u00ednuos na terapia.<sup>5<\/sup><\/p>\n<p>As diretrizes da EAU 2023 recomendam uma abordagem escalonada: terapia comportamental e exerc\u00edcios do assoalho p\u00e9lvico como primeira linha, anticolin\u00e9rgicos ou agonistas beta-3 (mirabegrona) como segunda linha, e neuromodula\u00e7\u00e3o sacral ou inje\u00e7\u00e3o de toxina botul\u00ednica intravesical como terceira linha. A avalia\u00e7\u00e3o urodin\u00e2mica \u00e9 recomendada antes de tratamentos invasivos para confirmar hiperatividade detrusora.<\/p>","gt-related-evidence":null,"gt-featured":true,"gt-ai-referenced":false,"gt-view-count":70},"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.7 (Yoast SEO v27.7) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Bexiga Hiperativa: Sintomas, Diagn\u00f3stico e Tratamento | Rigicon<\/title>\n<meta name=\"description\" content=\"Guia sobre bexiga hiperativa: urg\u00eancia urin\u00e1ria, frequ\u00eancia e noct\u00faria. 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