{"id":12192,"date":"2025-07-31T10:47:38","date_gmt":"2025-07-31T14:47:38","guid":{"rendered":"https:\/\/www.rigicon.com\/glossary-term\/intravesical-therapy\/"},"modified":"2025-07-31T10:47:38","modified_gmt":"2025-07-31T14:47:38","slug":"terapia-intravesical","status":"publish","type":"glossary-term","link":"https:\/\/www.rigicon.com\/es\/glossary-term\/terapia-intravesical\/","title":{"rendered":"Terapia Intravesical"},"content":{"rendered":"","protected":false},"excerpt":{"rendered":"","protected":false},"featured_media":0,"template":"","glossary-category":[126],"glossary-product":[],"class_list":["post-12192","glossary-term","type-glossary-term","status-publish","hentry","glossary-category-urological-conditions"],"acf":{"gt-definition":"La terapia intravesical es un enfoque de tratamiento especializado en el que el medicamento se administra directamente en la vejiga a trav\u00e9s de un cat\u00e9ter insertado a trav\u00e9s de la uretra, en lugar de administrarse sist\u00e9micamente por v\u00eda oral o intravenosa.<sup>1<\/sup> Este m\u00e9todo de administraci\u00f3n localizada permite que los agentes terap\u00e9uticos entren en contacto directo con el revestimiento de la vejiga mientras se minimiza la exposici\u00f3n sist\u00e9mica y los efectos secundarios asociados.<sup>2<\/sup> El objetivo principal de la terapia intravesical es erradicar la enfermedad existente o tumores residuales mediante citoablaci\u00f3n directa o inmunoestimulaci\u00f3n.<sup>3<\/sup> Durante el procedimiento, el medicamento se instila en forma l\u00edquida y se retiene en la vejiga durante un per\u00edodo espec\u00edfico, generalmente de 1 a 2 horas, antes de ser expulsado a trav\u00e9s de la orina.<sup>4<\/sup> Esta modalidad de tratamiento se usa predominantemente para el c\u00e1ncer de vejiga no m\u00fasculo invasivo (NMIBC) y el carcinoma in situ (CIS), donde sirve como terapia adyuvante despu\u00e9s de la resecci\u00f3n transuretral de un tumor de vejiga (TURBT) para reducir las tasas de recurrencia y progresi\u00f3n.<sup>1,3<\/sup>","gt-synonyms":"administraci\u00f3n intravesical, instilaci\u00f3n intravesical, tratamiento intravesical, quimioterapia intravesical (cuando se utilizan agentes quimioterap\u00e9uticos), inmunoterapia intravesical (cuando se utilizan agentes inmunoterap\u00e9uticos), Terapia con BCG intravesical (espec\u00edfica para el tratamiento con Bacillus Calmette-Gu\u00e9rin)","gt-citation":"[1] Shen Z, Shen T, Wientjes MG, O'Donnell MA, Au JL. Intravesical Treatments of Bladder Cancer: Review. Pharm Res. 2008 Mar;25(7):1500-1510. DOI: 10.1007\/s11095-008-9566-7\n\n[2] American Cancer Society. Intravesical Therapy for Bladder Cancer. Actualizado April 17, 2025. https:\/\/www.cancer.org\/cancer\/types\/bladder-cancer\/treating\/intravesical-therapy.html\n\n[3] Bladder Cancer Advocacy Network (BCAN). Intravesical Therapy. Actualizado December 5, 2024. https:\/\/bcan.org\/intravesical-therapy\/\n\n[4] Memorial Sloan Kettering Cancer Center. About Intravesical Therapy. https:\/\/www.mskcc.org\/cancer-care\/patient-education\/about-intravesical-therapy\n\n[5] National Cancer Institute. Definition of intravesical chemotherapy. https:\/\/www.cancer.gov\/publications\/dictionaries\/cancer-terms\/def\/intravesical-chemotherapy","gt-clinical-context":"La terapia intravesical se utiliza principalmente en el tratamiento del c\u00e1ncer de vejiga no m\u00fasculo invasivo (NMIBC), que incluye c\u00e1nceres de vejiga en etapa 0 (carcinoma in situ) y en etapa I que no han penetrado la capa muscular de la pared de la vejiga.<sup>1<\/sup> Esta modalidad de tratamiento se emplea con mayor frecuencia en los siguientes escenarios cl\u00ednicos:\n    \n    <p>Como terapia adyuvante despu\u00e9s de la resecci\u00f3n transuretral de un tumor de vejiga (TURBT), la terapia intravesical reduce significativamente el riesgo de recurrencia del tumor, que afecta hasta al 70% de los pacientes con NMIBC dentro de los cinco a\u00f1os posteriores al tratamiento inicial.<sup>3<\/sup> A menudo se administra una dosis \u00fanica de quimioterapia intravesical dentro de las 24 horas posteriores a la TURBT, seguida de un programa de mantenimiento basado en el riesgo del paciente. estratificaci\u00f3n.<sup>1<\/sup><\/p>\n    \n    <p>Para NMIBC de riesgo intermedio y alto, la terapia intravesical generalmente sigue un programa de tratamientos semanales durante aproximadamente 6 semanas (fase de inducci\u00f3n), seguido de tratamientos de mantenimiento menos frecuentes que se extienden desde 1 a\u00f1o para c\u00e1nceres de riesgo intermedio hasta 3 a\u00f1os para c\u00e1nceres de alto riesgo.<sup>1,2<\/sup> Se ha demostrado que este r\u00e9gimen reduce las tasas de recurrencia en un 14-17 % en comparaci\u00f3n con la TURBT. solo.<sup>3<\/sup><\/p>\n    \n    <p>La terapia intravesical es particularmente valiosa para tratar el carcinoma in situ (CIS), un c\u00e1ncer plano de alto grado que es dif\u00edcil de extirpar por completo solo con cirug\u00eda.<sup>2<\/sup> La aplicaci\u00f3n directa de medicamento al revestimiento de la vejiga permite un tratamiento dirigido a estas lesiones superficiales pero agresivas.<\/p>\n    \n    <p>Se emplean dos categor\u00edas principales de agentes terap\u00e9uticos intravesicales:<\/p>\n    \n    <p>Los agentes de inmunoterapia estimulan el sistema inmunol\u00f3gico del cuerpo para atacar y destruir las c\u00e9lulas cancerosas. Bacillus Calmette-Gu\u00e9rin (BCG) sigue siendo el agente inmunoterap\u00e9utico de primera l\u00ednea de referencia para NMIBC y CIS de alto riesgo, demostrando una eficacia superior en la prevenci\u00f3n de la recurrencia en comparaci\u00f3n con varios agentes quimioterap\u00e9uticos.<sup>3<\/sup> Para la enfermedad que no responde al BCG, las opciones m\u00e1s nuevas aprobadas por la FDA incluyen Nadofaragene firadenovec (Adstiladrin), una terapia g\u00e9nica que introduce interfer\u00f3n alfa-2b para activar las c\u00e9lulas inmunitarias, y nogapendekin alfa inbakicept (Anktiva), que mejora la respuesta inmunitaria mediante la activaci\u00f3n de la interleucina-15.<sup>2,3<\/sup><\/p>\n    \n    <p>Los agentes de quimioterapia matan directamente las c\u00e9lulas cancerosas que se dividen r\u00e1pidamente. Los quimioterap\u00e9uticos intravesicales com\u00fanmente utilizados incluyen mitomicina C, gemcitabina, docetaxel, valrubicina, epirrubicina y tiotepa.<sup>1,2<\/sup> Estos agentes son particularmente valiosos para pacientes que no son elegibles para la terapia con BCG o que no responden a ella.<\/p>\n    \n    <p>La selecci\u00f3n del paciente para la terapia intravesical se basa en la estratificaci\u00f3n del riesgo, con factores que incluyen el grado del tumor, el estadio, el tama\u00f1o, la multiplicidad y el historial de recurrencia previa que determinan el agente apropiado y el programa de tratamiento.<sup>4<\/sup> El tratamiento se administra a trav\u00e9s de un cat\u00e9ter insertado en la vejiga a trav\u00e9s de la uretra, y el medicamento se retiene durante un per\u00edodo espec\u00edfico antes de ser expulsado a trav\u00e9s de orinar.<sup>4<\/sup><\/p>\n    \n    <p>Los efectos secundarios generalmente se localizan en la vejiga e incluyen s\u00edntomas irritativos al vaciar, hematuria leve y espasmos de la vejiga.<sup>2<\/sup> Los efectos secundarios sist\u00e9micos son m\u00ednimos debido a la absorci\u00f3n limitada a trav\u00e9s del urotelio, que es una de las principales ventajas de este enfoque de tratamiento.<sup>1,2<\/sup><\/p>","gt-related-evidence":null,"gt-featured":true,"gt-ai-referenced":false,"gt-view-count":66},"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>Terapia Intravesical<\/title>\n<meta name=\"description\" content=\"La terapia intravesical administra medicamentos directamente en la vejiga a trav\u00e9s de un cat\u00e9ter, lo que brinda un tratamiento espec\u00edfico para el...\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.rigicon.com\/es\/glossary-term\/terapia-intravesical\/\" 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