{"id":12803,"date":"2025-08-01T12:40:57","date_gmt":"2025-08-01T16:40:57","guid":{"rendered":"https:\/\/www.rigicon.com\/glossary-term\/overflow-incontinence\/"},"modified":"2025-08-01T12:40:57","modified_gmt":"2025-08-01T16:40:57","slug":"incontinencia-por-transbordamento","status":"publish","type":"glossary-term","link":"https:\/\/www.rigicon.com\/pt-br\/glossary-term\/incontinencia-por-transbordamento\/","title":{"rendered":"Incontin\u00eancia por Transbordamento"},"content":{"rendered":"","protected":false},"excerpt":{"rendered":"","protected":false},"featured_media":0,"template":"","glossary-category":[124],"glossary-product":[108,107],"class_list":["post-12803","glossary-term","type-glossary-term","status-publish","hentry","glossary-category-urinary-incontinence-related-conditions","glossary-product-conticlassic-aus","glossary-product-contireflex-enhanced-aus"],"acf":{"gt-definition":"

A incontin\u00eancia por transbordamento \u00e9 um tipo de incontin\u00eancia urin\u00e1ria caracterizada pela perda involunt\u00e1ria de urina devido a uma bexiga muito cheia que n\u00e3o consegue esvaziar completamente\u00a4\u00a40001\u00a4\u00a4<\/span>. Essa condi\u00e7\u00e3o ocorre quando a bexiga fica distendida al\u00e9m de sua capacidade normal, resultando em gotejamento frequente ou constante de pequenas quantidades de urina\u00a4\u00a40002\u00a4\u00a4<\/span>. O mecanismo fisiopatol\u00f3gico prim\u00e1rio envolve comprometimento da contratilidade do m\u00fasculo detrusor, obstru\u00e7\u00e3o da sa\u00edda da bexiga ou ambos, levando \u00e0 reten\u00e7\u00e3o urin\u00e1ria e subsequente transbordamento\u00a4\u00a40003\u00a4\u00a4<\/span>.<\/p>\n \n

Ao contr\u00e1rio de outras formas de incontin\u00eancia urin\u00e1ria, a incontin\u00eancia por transbordamento \u00e9 mais comum em homens do que em mulheres, principalmente devido \u00e0 preval\u00eancia do aumento da pr\u00f3stata como fator causal\u00a4\u00a40004\u00a4\u00a4<\/span>. A condi\u00e7\u00e3o representa aproximadamente 5% de todos os casos de incontin\u00eancia urin\u00e1ria cr\u00f4nica\u00a4\u00a40005\u00a4\u00a4<\/span>. Os pacientes podem apresentar sintomas paradoxais de frequ\u00eancia urin\u00e1ria e esvaziamento incompleto, muitas vezes sem sentir plenitude da bexiga\u00a4\u00a40006\u00a4\u00a4<\/span>.<\/p>\n \n

A apresenta\u00e7\u00e3o cl\u00ednica geralmente inclui gotejamento frequente ou constante, dificuldade em iniciar a mic\u00e7\u00e3o, fluxo urin\u00e1rio interrompido e sensa\u00e7\u00e3o de esvaziamento incompleto da bexiga\u00a4\u00a40007\u00a4\u00a4<\/span>. O diagn\u00f3stico requer avalia\u00e7\u00e3o abrangente, incluindo medi\u00e7\u00e3o do volume residual p\u00f3s-miccional, que \u00e9 caracteristicamente elevado nesses pacientes\u00a4\u00a40008\u00a4\u00a4<\/span>. As estrat\u00e9gias de manejo variam desde t\u00e9cnicas comportamentais e farmacoterapia at\u00e9 cateterismo e interven\u00e7\u00f5es cir\u00fargicas, dependendo da etiologia subjacente\u00a4\u00a40009\u00a4\u00a4<\/span>.<\/p>\n

A incontin\u00eancia por transbordamento (overflow) \u00e9 a perda involunt\u00e1ria de urina associada a uma bexiga sobredistendida que n\u00e3o esvazia adequadamente. Ocorre quando a press\u00e3o intravesical excede a resist\u00eancia uretral em uma bexiga cronicamente cheia. As causas incluem obstru\u00e7\u00e3o infravesical (HPB, estenose uretral) e hipocontratilidade do detrusor (neuropatia diab\u00e9tica, les\u00e3o medular, medicamentos anticolin\u00e9rgicos).<\/p>","gt-synonyms":"Reten\u00e7\u00e3o urin\u00e1ria cr\u00f4nica com transbordamento, Incontin\u00eancia urin\u00e1ria por transbordamento, Incontin\u00eancia paradoxal, Reten\u00e7\u00e3o com transbordamento, Incontin\u00eancia de reten\u00e7\u00e3o cr\u00f4nica, Ischuria paradoxa","gt-citation":"[1] Leslie SW, Tran Y, Puckett Y. Urinary Incontinence. [Updated 2024 Aug 11]. In: StatPearls [Internet]. Treasure Island (FL): StatPearls Publishing; 2024 Jan-. Available from: https:\/\/www.ncbi.nlm.nih.gov\/books\/NBK559095\/ DOI: NBK559095\n\n[2] Corrado B, Giardulli B, Polito F, et al. The Impact of Urinary Incontinence on Quality of Life: A Cross-Sectional Study in the Metropolitan City of Naples. Geriatrics (Basel). 2020;5(4):96. Published 2020 Nov 20. DOI: 10.3390\/geriatrics5040096\n\n[3] Abrams P, Cardozo L, Wagg A, Wein A. (Eds) Incontinence 6th Edition (2017). ICI-ICS. International Continence Society, Bristol UK. DOI: 978-0956960733\n\n[4] Griebling TL. Urinary incontinence in the elderly. Clin Geriatr Med. 2009;25(3):445-457. DOI: 10.1016\/j.cger.2009.06.004\n\n[5] Milsom I, Gyhagen M. The prevalence of urinary incontinence. Climacteric. 2019;22(3):217-222. DOI: 10.1080\/13697137.2018.1543263","gt-clinical-context":"

A incontin\u00eancia por transbordamento ocorre em ambientes cl\u00ednicos onde h\u00e1 comprometimento do esvaziamento da bexiga, resultando em reten\u00e7\u00e3o urin\u00e1ria e subsequente transbordamento1<\/sup>. A condi\u00e7\u00e3o requer um diagn\u00f3stico diferencial cuidadoso de outras formas de incontin\u00eancia, pois as estrat\u00e9gias de tratamento diferem significativamente2<\/sup>.<\/p>\n \n

A causa mais comum em homens \u00e9 a hiperplasia prost\u00e1tica benigna (HPB), que cria obstru\u00e7\u00e3o mec\u00e2nica na sa\u00edda da bexiga3<\/sup>. Nas mulheres, as causas incluem prolapso de \u00f3rg\u00e3os p\u00e9lvicos, estenose uretral ou disfun\u00e7\u00e3o neurog\u00eanica da bexiga4<\/sup>. Condi\u00e7\u00f5es neurol\u00f3gicas como esclerose m\u00faltipla, doen\u00e7a de Parkinson, neuropatia diab\u00e9tica e les\u00f5es na medula espinhal podem afetar ambos os sexos, prejudicando o controle neural da fun\u00e7\u00e3o da bexiga5<\/sup>.<\/p>\n \n

A sele\u00e7\u00e3o do paciente para tratamento depende da etiologia subjacente, gravidade dos sintomas e comorbidades6<\/sup>. O manejo inicial normalmente envolve o tratamento de causas revers\u00edveis e pode incluir bloqueadores alfa-adren\u00e9rgicos para obstru\u00e7\u00e3o prost\u00e1tica ou cateterismo intermitente para bexiga neurog\u00eanica7<\/sup>. Interven\u00e7\u00f5es cir\u00fargicas como a ressec\u00e7\u00e3o transuretral da pr\u00f3stata (RTU) podem ser indicadas para causas obstrutivas8<\/sup>.<\/p>\n \n

Os resultados esperados variam com base na patologia subjacente e na interven\u00e7\u00e3o escolhida. Pacientes com obstru\u00e7\u00e3o mec\u00e2nica geralmente apresentam melhora significativa ap\u00f3s a corre\u00e7\u00e3o cir\u00fargica, enquanto aqueles com causas neurog\u00eanicas podem necessitar de estrat\u00e9gias de manejo em longo prazo9<\/sup>. As complica\u00e7\u00f5es da incontin\u00eancia por transbordamento n\u00e3o tratada incluem infec\u00e7\u00f5es recorrentes do trato urin\u00e1rio, c\u00e1lculos na bexiga e poss\u00edveis danos renais causados \u200b\u200bpor contrapress\u00e3o cr\u00f4nica7<\/sup>.<\/p>\n

O diagn\u00f3stico envolve medi\u00e7\u00e3o do res\u00edduo p\u00f3s-miccional (geralmente > 300 mL), ultrassonografia vesical e estudo urodin\u00e2mico. O tratamento imediato \u00e9 a descompress\u00e3o vesical por cateterismo. O manejo a longo prazo depende da causa: alfa-bloqueadores ou cirurgia para obstru\u00e7\u00e3o prost\u00e1tica, cateterismo intermitente limpo para hipocontratilidade detrusora. A EAU adverte que a reten\u00e7\u00e3o urin\u00e1ria cr\u00f4nica pode causar insufici\u00eancia renal bilateral se n\u00e3o tratada.<\/p>","gt-related-evidence":null,"gt-featured":true,"gt-ai-referenced":false,"gt-view-count":66},"yoast_head":"\nIncontin\u00eancia por Transbordamento: Reten\u00e7\u00e3o e Perda Urin\u00e1ria | Rigicon<\/title>\n<meta name=\"description\" content=\"Saiba sobre incontin\u00eancia por transbordamento: perda urin\u00e1ria por bexiga sobredistendida. Causas obstrutivas e neurol\u00f3gicas. 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