{"id":12706,"date":"2025-07-17T03:32:28","date_gmt":"2025-07-17T07:32:28","guid":{"rendered":"https:\/\/www.rigicon.com\/glossary-term\/voiding-dysfunction\/"},"modified":"2025-07-17T03:32:28","modified_gmt":"2025-07-17T07:32:28","slug":"disfuncao-miccional","status":"publish","type":"glossary-term","link":"https:\/\/www.rigicon.com\/pt-br\/glossary-term\/disfuncao-miccional\/","title":{"rendered":"Disfun\u00e7\u00e3o Miccional"},"content":{"rendered":"","protected":false},"excerpt":{"rendered":"","protected":false},"featured_media":0,"template":"","glossary-category":[111],"glossary-product":[108,107],"class_list":["post-12706","glossary-term","type-glossary-term","status-publish","hentry","glossary-category-urological-disorders","glossary-product-conticlassic-aus","glossary-product-contireflex-enhanced-aus"],"acf":{"gt-definition":"<p>Disfun\u00e7\u00e3o miccional \u00e9 um termo amplo que descreve anormalidades no processo de esvaziamento da bexiga, caracterizadas por m\u00e1 coordena\u00e7\u00e3o entre o m\u00fasculo da bexiga e o esf\u00edncter uretral.<sup>1<\/sup> Abrange um espectro de condi\u00e7\u00f5es que afetam as fases de armazenamento e esvaziamento do ciclo de mic\u00e7\u00e3o, resultando em dificuldades para urinar.<sup>2<\/sup> A disfun\u00e7\u00e3o miccional pode se manifestar como problemas para iniciar a mic\u00e7\u00e3o, manter ou interromper o fluxo de urina ou completamente esvaziamento da bexiga.<sup>3<\/sup> Esta condi\u00e7\u00e3o ocorre na aus\u00eancia de anormalidades neurol\u00f3gicas ou anat\u00f4micas e pode afetar crian\u00e7as e adultos de todos os sexos, embora a apresenta\u00e7\u00e3o e as causas subjacentes possam ser diferentes.<sup>4<\/sup> A etiologia \u00e9 multifatorial, potencialmente envolvendo comportamentos aprendidos, padr\u00f5es de mic\u00e7\u00e3o imaturos persistentes, fatores psicol\u00f3gicos e, em alguns casos, predisposi\u00e7\u00f5es gen\u00e9ticas.<sup>5<\/sup><\/p>\n<p>A disfun\u00e7\u00e3o miccional abrange um espectro de dist\u00farbios que afetam o armazenamento e\/ou esvaziamento da urina pela bexiga. Inclui condi\u00e7\u00f5es como bexiga hiperativa, hipoatividade do detrusor, obstru\u00e7\u00e3o infravesical e dissinergia detrusor-esfincteriana. Pode resultar de causas neurol\u00f3gicas, obstrutivas, funcionais ou combinadas, afetando significativamente a qualidade de vida dos pacientes.<\/p>","gt-synonyms":"Disfun\u00e7\u00e3o do trato urin\u00e1rio inferior (DTUI), disfun\u00e7\u00e3o miccional, dist\u00farbios miccionais, dist\u00farbios de esvaziamento da bexiga, disfun\u00e7\u00e3o miccional n\u00e3o neurog\u00eanica, dist\u00farbio miccional funcional, descoordena\u00e7\u00e3o detrusor-esf\u00edncter","gt-citation":"[1] Chaikin DC, Blaivas JG. Voiding dysfunction: definitions. Curr Opin Urol. 2001 Jul;11(4):395-8. DOI: 10.1097\/00042307-200107000-00010\n\n[2] Clothier JC, Wright AJ. Dysfunctional voiding: the importance of non-invasive urodynamics in diagnosis and treatment. Pediatr Nephrol. 2017 May 31;33(3):381-394. DOI: 10.1007\/s00467-017-3679-3\n\n[3] Stoffel JT, Peterson AC, Sandhu JS, Suskind AM, Wei JT, Lightner DJ. AUA White Paper on Nonneurogenic Chronic Urinary Retention: Consensus Definition, Treatment Algorithm, and Outcome End Points. J Urol. 2017 Jul;198(1):153-160. DOI: 10.1016\/j.juro.2017.01.075\n\n[4] Sripathi V, Mitra A. Understanding voiding dysfunction in children. J Indian Assoc Pediatr Surg. 2019 Oct-Dec;24(4):237-244. DOI: 10.4103\/jiaps.JIAPS_62_19\n\n[5] Austin PF, Bauer SB, Bower W, Chase J, Franco I, Hoebeke P, et al. The standardization of terminology of lower urinary tract function in children and adolescents: Update report from the standardization committee of the International Children's Continence Society. Neurourol Urodyn. 2016 Apr;35(4):471-81. DOI: 10.1002\/nau.22751","gt-clinical-context":"<p>A disfun\u00e7\u00e3o miccional apresenta uma ampla gama de sintomas que podem afetar significativamente a qualidade de vida. Na fase de armazenamento, os pacientes podem apresentar frequ\u00eancia urin\u00e1ria, urg\u00eancia, incontin\u00eancia de urg\u00eancia, noct\u00faria e v\u00e1rias formas de dor na bexiga.<sup>1<\/sup> Durante a fase de esvaziamento, os sintomas incluem hesita\u00e7\u00e3o, esfor\u00e7o para urinar, dificuldade em iniciar a mic\u00e7\u00e3o, diminui\u00e7\u00e3o do jato urin\u00e1rio, sensa\u00e7\u00f5es de esvaziamento incompleto da bexiga e, em casos graves, reten\u00e7\u00e3o urin\u00e1ria.<sup>2<\/sup><\/p>\n \n <p>A etiologia da disfun\u00e7\u00e3o miccional varia de acordo com a idade e o sexo. Em crian\u00e7as, muitas vezes se manifesta como mic\u00e7\u00e3o disfuncional, onde a falha do complexo esf\u00edncter-assoalho p\u00e9lvico externo em relaxar durante a mic\u00e7\u00e3o resulta em obstru\u00e7\u00e3o do fluxo de sa\u00edda da bexiga.<sup>3<\/sup> Isso pode levar a infec\u00e7\u00f5es recorrentes do trato urin\u00e1rio, refluxo vesicoureteral e, em casos graves, deteriora\u00e7\u00e3o do trato superior.<sup>3<\/sup> Nos homens, a disfun\u00e7\u00e3o miccional \u00e9 frequentemente atribu\u00edda \u00e0 obstru\u00e7\u00e3o prost\u00e1tica, embora apenas aproximadamente dois ter\u00e7os dos casos sintom\u00e1ticos os homens atendem aos crit\u00e9rios diagn\u00f3sticos de obstru\u00e7\u00e3o.<sup>1<\/sup> Muitos tamb\u00e9m apresentam hiperatividade do detrusor, contratilidade do detrusor prejudicada ou outros fatores contribuintes.<sup>1<\/sup> Nas mulheres, a condi\u00e7\u00e3o \u00e9 frequentemente multifatorial, com causas que incluem altera\u00e7\u00f5es hormonais, efeitos do parto, envelhecimento e cirurgias p\u00e9lvicas anteriores.<sup>1<\/sup> As mulheres apresentam uma incid\u00eancia muito menor de obstru\u00e7\u00e3o uretral, mas uma taxa mais alta de incontin\u00eancia esfincteriana. em compara\u00e7\u00e3o com os homens.<sup>1<\/sup><\/p>\n \n <p>O diagn\u00f3stico normalmente envolve uma abordagem abrangente, incluindo hist\u00f3rico m\u00e9dico detalhado, exame f\u00edsico, exame de urina e testes urodin\u00e2micos especializados.<sup>4<\/sup> A urodin\u00e2mica n\u00e3o invasiva, particularmente a urofluxometria com ou sem eletromiografia (EMG), desempenha um papel crucial no diagn\u00f3stico e monitoramento do tratamento.<sup>3<\/sup> Em casos complexos, estudos urodin\u00e2micos invasivos podem ser necess\u00e1rios para caracterizar completamente o disfun\u00e7\u00e3o.<sup>5<\/sup><\/p>\n \n <p>As estrat\u00e9gias de tratamento s\u00e3o adaptadas ao tipo espec\u00edfico de disfun\u00e7\u00e3o miccional e \u00e0s causas subjacentes. As abordagens conservadoras incluem modifica\u00e7\u00f5es comportamentais, hor\u00e1rios de mic\u00e7\u00e3o cronometrados, terapia do assoalho p\u00e9lvico e treinamento de biofeedback.<sup>3<\/sup> As interven\u00e7\u00f5es farmacol\u00f3gicas podem incluir anticolin\u00e9rgicos para sintomas de bexiga hiperativa, alfa-bloqueadores para reduzir a resist\u00eancia ao fluxo ou outros medicamentos direcionados a aspectos espec\u00edficos da disfun\u00e7\u00e3o.<sup>4<\/sup> Para casos refrat\u00e1rios, op\u00e7\u00f5es mais invasivas, como neuromodula\u00e7\u00e3o sacral, inje\u00e7\u00f5es de toxina botul\u00ednica ou cirurgia interven\u00e7\u00f5es podem ser consideradas.<sup>5<\/sup> Os resultados do tratamento s\u00e3o geralmente favor\u00e1veis quando a abordagem \u00e9 baseada na fisiopatologia subjacente e n\u00e3o apenas nos sintomas.<sup>1<\/sup><\/p>\n<p>A avalia\u00e7\u00e3o inclui hist\u00f3ria cl\u00ednica detalhada, di\u00e1rio miccional, urofluxometria e, quando indicado, estudo urodin\u00e2mico completo. A EAU recomenda tratamento baseado no tipo de disfun\u00e7\u00e3o: anticolin\u00e9rgicos ou beta-3 agonistas para hiperatividade detrusora, alfa-bloqueadores para obstru\u00e7\u00e3o prost\u00e1tica, cateterismo intermitente para hipocontratilidade do detrusor e neuromodula\u00e7\u00e3o para disfun\u00e7\u00f5es refrat\u00e1rias.<\/p>","gt-related-evidence":null,"gt-featured":true,"gt-ai-referenced":false,"gt-view-count":86},"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>Disfun\u00e7\u00e3o Miccional: Dist\u00farbios da Mic\u00e7\u00e3o | Rigicon<\/title>\n<meta name=\"description\" content=\"Saiba sobre disfun\u00e7\u00e3o miccional: dificuldade de armazenamento ou esvaziamento da bexiga. Causas, avalia\u00e7\u00e3o urodin\u00e2mica e tratamento. 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