{"id":12103,"date":"2025-07-09T09:46:11","date_gmt":"2025-07-09T13:46:11","guid":{"rendered":"https:\/\/www.rigicon.com\/glossary-term\/urinary-tract-infection-uti\/"},"modified":"2026-10-06T18:04:24","modified_gmt":"2026-10-06T22:04:24","slug":"infeccion-del-tracto-urinario-itu","status":"publish","type":"glossary-term","link":"https:\/\/www.rigicon.com\/es\/glossary-term\/infeccion-del-tracto-urinario-itu\/","title":{"rendered":"Infecci\u00f3n del Tracto Urinario (ITU)"},"content":{"rendered":"","protected":false},"excerpt":{"rendered":"","protected":false},"featured_media":0,"template":"","glossary-category":[126],"glossary-product":[107,104,105],"class_list":["post-12103","glossary-term","type-glossary-term","status-publish","hentry","glossary-category-urological-conditions","glossary-product-contireflex-enhanced-aus","glossary-product-infla10-pulse-ipp-series","glossary-product-rigi10-malleable-penile-prosthesis"],"acf":{"gt-definition":"<p>Una infecci\u00f3n del tracto urinario (ITU) es una infecci\u00f3n que afecta a cualquier parte del aparato urinario, incluidos los ri\u00f1ones, los ur\u00e9teres, la vejiga y la uretra.<sup>1<\/sup> Las ITU se producen cuando las bacterias, con mayor frecuencia Escherichia coli (E. coli), entran en el tracto urinario a trav\u00e9s de la uretra y comienzan a multiplicarse en la vejiga.<sup>2<\/sup> La infecci\u00f3n puede permanecer limitada a la vejiga (cistitis) o extenderse a los ri\u00f1ones (pielonefritis).<sup>3<\/sup> Las ITU se caracterizan por la inflamaci\u00f3n del epitelio urinario, que provoca s\u00edntomas como disuria, polaquiuria, urgencia miccional y, en ocasiones, hematuria.<sup>4<\/sup> Las mujeres tienen un mayor riesgo de desarrollar ITU que los hombres debido a que su uretra es m\u00e1s corta y est\u00e1 pr\u00f3xima al ano, lo que facilita la entrada de bacterias.<sup>1<\/sup> El diagn\u00f3stico suele basarse en un an\u00e1lisis de orina y un urocultivo, y el tratamiento consiste generalmente en un tratamiento antibi\u00f3tico adecuado en funci\u00f3n del microorganismo causante y de la gravedad de la infecci\u00f3n.<sup>5<\/sup><\/p>","gt-synonyms":"Cistitis, Infecci\u00f3n de vejiga, Infecci\u00f3n del tracto urinario inferior (ITUU), Uretritis, S\u00edndrome uretral agudo, Urosepsis (cuando la infecci\u00f3n ingresa al torrente sangu\u00edneo), Pielonefritis (infecci\u00f3n renal), Bacteriuria (bacterias en la orina)","gt-citation":"[1] Flores-Mireles AL, Walker JN, Caparon M, Hultgren SJ. Urinary tract infections: epidemiology, mechanisms of infection and treatment options. Nat Rev Microbiol. 2015 Apr 8;13(5):269-284. DOI: 10.1038\/nrmicro3432\n\n[2] Bono MJ, Leslie SW. Uncomplicated Urinary Tract Infections. StatPearls [Internet]. 2025 Feb 21. PMID: 29261874\n\n[3] Centers for Disease Control and Prevention. Urinary Tract Infection Basics. Updated January 22, 2024. https:\/\/www.cdc.gov\/uti\/about\/index.html\n\n[4] National Institute of Diabetes and Digestive and Kidney Diseases. Bladder Infection (Urinary Tract Infection\u2014UTI) in Adults. Updated April 2024. https:\/\/www.niddk.nih.gov\/health-information\/urologic-diseases\/bladder-infection-uti-in-adults\n\n[5] Mayo Clinic. Urinary tract infection (UTI) - Symptoms and causes. Updated September 14, 2022. https:\/\/www.mayoclinic.org\/diseases-conditions\/urinary-tract-infection\/symptoms-causes\/syc-20353447","gt-clinical-context":"<p>Las infecciones del tracto urinario (ITU) se encuentran entre las infecciones bacterianas m\u00e1s frecuentes en la pr\u00e1ctica cl\u00ednica.<sup>1<\/sup> Afectan principalmente al tracto urinario inferior, incluida la vejiga y las estructuras asociadas, aunque en los casos m\u00e1s graves pueden ascender y afectar a los ri\u00f1ones.<sup>2<\/sup><\/p>\n    \n    <h3>Selecci\u00f3n y presentaci\u00f3n de los pacientes<\/h3>\n    <p>Las ITU afectan predominantemente a las mujeres: aproximadamente el 50-60% sufre al menos una ITU a lo largo de su vida.<sup>1<\/sup> Los factores de riesgo incluyen la anatom\u00eda femenina, la actividad sexual, ciertos m\u00e9todos anticonceptivos (especialmente los diafragmas con espermicida), la menopausia, las anomal\u00edas del tracto urinario, las obstrucciones del tracto urinario, la inmunosupresi\u00f3n, el uso de sondas y los procedimientos urinarios recientes.<sup>3<\/sup> En los hombres, las ITU son menos frecuentes y a menudo se asocian a hipertrofia prost\u00e1tica, instrumentaci\u00f3n del tracto urinario o inmunosupresi\u00f3n.<sup>4<\/sup><\/p>\n\n    <h3>Enfoque diagn\u00f3stico<\/h3>\n    <p>El diagn\u00f3stico se basa en la historia cl\u00ednica, el an\u00e1lisis de orina y el urocultivo, y es esencial una recogida adecuada de la muestra.<sup>2<\/sup> La disuria, la polaquiuria, la urgencia miccional y las molestias suprap\u00fabicas son los s\u00edntomas de presentaci\u00f3n t\u00edpicos.<sup>3<\/sup> La evaluaci\u00f3n de laboratorio suele incluir una tira reactiva para detectar nitritos, esterasa leucocitaria y sangre, junto con un examen microsc\u00f3pico para detectar bacterias y leucocitos.<sup>2<\/sup> Un urocultivo que muestre un crecimiento significativo de un uropat\u00f3geno en un paciente sintom\u00e1tico respalda el diagn\u00f3stico, aunque el umbral de recuento de colonias utilizado depende del contexto cl\u00ednico.<sup>2<\/sup><\/p>\n\n    <h3>Protocolos de tratamiento<\/h3>\n    <p>Las ITU no complicadas suelen tratarse con antibi\u00f3ticos orales, que se seleccionan en funci\u00f3n de los patrones locales de resistencia.<sup>5<\/sup> Los tratamientos de primera l\u00ednea suelen incluir nitrofuranto\u00edna, trimetoprim\/sulfametoxazol, fosfomicina o pivmecilinam.<sup>2<\/sup> En las ITU complicadas o la pielonefritis pueden ser necesarios antibi\u00f3ticos de espectro m\u00e1s amplio y tratamientos de mayor duraci\u00f3n.<sup>5<\/sup> Las medidas de apoyo incluyen el aumento de la ingesta de l\u00edquidos y analg\u00e9sicos urinarios para aliviar los s\u00edntomas.<sup>4<\/sup><\/p>\n\n    <h3>Resultados esperados<\/h3>\n    <p>Con un tratamiento antibi\u00f3tico adecuado, los s\u00edntomas suelen mejorar en un plazo de 24-48 horas.<sup>3<\/sup> Las ITU no complicadas suelen resolverse por completo con una pauta antibi\u00f3tica de 3-7 d\u00edas.<sup>2<\/sup> Sin embargo, pueden producirse infecciones recurrentes en aproximadamente el 20-30% de las mujeres en los 6 meses siguientes a la infecci\u00f3n inicial.<sup>1<\/sup> Las estrategias preventivas incluyen una hidrataci\u00f3n adecuada, unas pr\u00e1cticas de higiene apropiadas, orinar despu\u00e9s de la actividad sexual y, en algunos casos, antibi\u00f3ticos profil\u00e1cticos.<sup>3<\/sup><\/p>","gt-related-evidence":null,"gt-featured":true,"gt-ai-referenced":false,"gt-view-count":92},"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v28.7 (Yoast SEO v28.7) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Infecci\u00f3n del Tracto Urinario (ITU)<\/title>\n<meta name=\"description\" content=\"Una infecci\u00f3n del tracto urinario (ITU) ocurre por la proliferaci\u00f3n de bacterias en el sistema urinario; 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