{"id":8056,"date":"2023-06-08T06:30:12","date_gmt":"2023-06-08T04:30:12","guid":{"rendered":"https:\/\/gastropedia.pub\/es\/?p=8056"},"modified":"2023-12-29T22:33:14","modified_gmt":"2023-12-29T21:33:14","slug":"deteccion-de-neoplasia-intraepitelial-anal-y-prevencion-de-cancer-de-ano","status":"publish","type":"post","link":"https:\/\/gastropedia.pub\/es\/cirugia\/deteccion-de-neoplasia-intraepitelial-anal-y-prevencion-de-cancer-de-ano\/","title":{"rendered":"Detecci\u00f3n de neoplasia intraepitelial anal y prevenci\u00f3n de c\u00e1ncer de ano"},"content":{"rendered":"<h2 class=\"wp-block-heading\"><strong>Incidencia de c\u00e1ncer de ano y canal anal<\/strong><\/h2>\n<p>El carcinoma de c\u00e9lulas escamosas de ano y canal anal tiene una baja incidencia en la poblaci\u00f3n general (1-2\/100.000 personas-a\u00f1o). Sin embargo, cuando se asocia a factores de riesgo como la coinfecci\u00f3n con el VIH, hombres que tienen sexo con hombres (HSH), presencia de lesiones de alto grado o carcinoma en los genitales e inmunosupresi\u00f3n, este riesgo puede aumentar considerablemente:<\/p>\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large is-resized\"><a href=\"https:\/\/gastropedia.com.br\/wp-content\/uploads\/2023\/05\/vinicius.jpg\" data-rel=\"penci-gallery-image-content\"  data-rel=\"penci-gallery-image-content\"><img fetchpriority=\"high\" decoding=\"async\" class=\"wp-image-5829\" src=\"https:\/\/gastropedia.com.br\/wp-content\/uploads\/2023\/05\/vinicius-1024x720.jpg?v=1684936628\" sizes=\"(max-width: 511px) 100vw, 511px\" srcset=\"https:\/\/gastropedia.com.br\/wp-content\/uploads\/2023\/05\/vinicius-1024x720.jpg?v=1684936628 1024w, https:\/\/gastropedia.com.br\/wp-content\/uploads\/2023\/05\/vinicius-300x211.jpg?v=1684936628 300w, https:\/\/gastropedia.com.br\/wp-content\/uploads\/2023\/05\/vinicius-768x540.jpg?v=1684936628 768w, https:\/\/gastropedia.com.br\/wp-content\/uploads\/2023\/05\/vinicius-585x412.jpg?v=1684936628 585w, https:\/\/gastropedia.com.br\/wp-content\/uploads\/2023\/05\/vinicius.jpg?v=1684936628 1160w\" alt=\"\" width=\"511\" height=\"359\" \/><\/a><figcaption class=\"wp-element-caption\"><strong>Gr\u00e1fico de incidencia de c\u00e1ncer de ano. Clifford et al (1)<\/strong><\/figcaption><\/figure>\n<\/div>\n<p>El c\u00e1ncer de ano y canal anal puede ser rastreado con un examen proctol\u00f3gico completo, con inspecci\u00f3n y tacto rectal, seguido de anuscopia con biopsia en lesiones sospechosas (3).<\/p>\n<p>Las lesiones intraepiteliales anales de alto grado (AIN de alto grado), al igual que ocurre en el cuello del \u00fatero, pueden ser identificadas mediante ex\u00e1menes como la citolog\u00eda oncol\u00f3gica o la genotipificaci\u00f3n para HPV de alto riesgo oncog\u00e9nico obtenida mediante el frotis anal (<em>Anal-Pap<\/em>).<\/p>\n<p>Cuando estos resultados vengan alterados, el paciente debe ser remitido para la realizaci\u00f3n de un examen de anuscopia de alta resoluci\u00f3n o anuscopia con magnificaci\u00f3n de imagen, que se asemeja a un examen de colposcopia de la regi\u00f3n del ano y del canal anal. A trav\u00e9s de este examen, es posible identificar lesiones sospechosas para AIN de alto grado, que, cuando se identifican mediante una biopsia, deben ser tratadas, mediante cauterizaci\u00f3n qu\u00edmica o electrocauterizaci\u00f3n o con l\u00e1ser de infrarrojos (4)<\/p>\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full is-resized\"><a href=\"https:\/\/gastropedia.com.br\/wp-content\/uploads\/2023\/05\/vini1-3.jpg\" data-rel=\"penci-gallery-image-content\"  data-rel=\"penci-gallery-image-content\"><img decoding=\"async\" class=\"wp-image-5835\" src=\"https:\/\/gastropedia.com.br\/wp-content\/uploads\/2023\/05\/vini1-3.jpg\" sizes=\"(max-width: 310px) 100vw, 310px\" srcset=\"https:\/\/gastropedia.com.br\/wp-content\/uploads\/2023\/05\/vini1-3.jpg?v=1684937452 484w, https:\/\/gastropedia.com.br\/wp-content\/uploads\/2023\/05\/vini1-3-300x248.jpg?v=1684937452 300w\" alt=\"\" width=\"310\" height=\"256\" \/><\/a><figcaption class=\"wp-element-caption\"><strong>Frotis anal (Anal-PAP) para citolog\u00eda<\/strong><\/figcaption><\/figure>\n<\/div>\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large is-resized\"><a href=\"https:\/\/gastropedia.com.br\/wp-content\/uploads\/2023\/05\/IMG_6175-3.jpg\" data-rel=\"penci-gallery-image-content\"  data-rel=\"penci-gallery-image-content\"><img decoding=\"async\" class=\"wp-image-5837\" src=\"https:\/\/gastropedia.com.br\/wp-content\/uploads\/2023\/05\/IMG_6175-3-910x1024.jpg?v=1684937589\" sizes=\"(max-width: 314px) 100vw, 314px\" srcset=\"https:\/\/gastropedia.com.br\/wp-content\/uploads\/2023\/05\/IMG_6175-3-910x1024.jpg?v=1684937589 910w, https:\/\/gastropedia.com.br\/wp-content\/uploads\/2023\/05\/IMG_6175-3-267x300.jpg?v=1684937589 267w, https:\/\/gastropedia.com.br\/wp-content\/uploads\/2023\/05\/IMG_6175-3-768x864.jpg?v=1684937589 768w, https:\/\/gastropedia.com.br\/wp-content\/uploads\/2023\/05\/IMG_6175-3-1170x1316.jpg?v=1684937589 1170w, https:\/\/gastropedia.com.br\/wp-content\/uploads\/2023\/05\/IMG_6175-3-585x658.jpg?v=1684937589 585w, https:\/\/gastropedia.com.br\/wp-content\/uploads\/2023\/05\/IMG_6175-3.jpg?v=1684937589 1242w\" alt=\"\" width=\"314\" height=\"352\" \/><\/a><figcaption class=\"wp-element-caption\"><strong>Anuscopia de alta resoluci\u00f3n<\/strong><\/figcaption><\/figure>\n<\/div>\n<h2 class=\"wp-block-heading\"><strong>ANCHOR <em>trial<\/em><\/strong><\/h2>\n<ul>\n<li>Hasta hace poco, no hab\u00eda un grado de evidencia robusto para indicar el rastreo y tratamiento de las lesiones intraepiteliales anales de alto grado como m\u00e9todo de prevenci\u00f3n para el c\u00e1ncer de ano y canal anal (2).<\/li>\n<li>Sin embargo, en 2022 se public\u00f3 en el NEJM los resultados del ANCHOR <em>trial<\/em>, (<strong>A<\/strong>nal <strong>C<\/strong>ancer <strong>H<\/strong>SIL <strong>O<\/strong>utcomes <strong>R<\/strong>esearch) (5) un estudio prospectivo multic\u00e9ntrico aleatorizado que evalu\u00f3 a 4446 personas que viven con VIH que fueron seguidas con ex\u00e1menes de citolog\u00eda y anuscopia de alta resoluci\u00f3n.<\/li>\n<li>Cuando se identificaron lesiones intraepiteliales anales de alto grado (AIN 2 p16+ o AIN3), los participantes fueron aleatorizados en dos grupos: uno en el que estas lesiones ser\u00edan tratadas y otro en el que estas lesiones ser\u00edan seguidas cada 6 meses.<\/li>\n<li>La tasa de progresi\u00f3n a c\u00e1ncer de ano fue un 53% menor en el grupo tratado que en el grupo solo seguido (p= 0,03).<\/li>\n<\/ul>\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full is-resized\"><a href=\"https:\/\/gastropedia.com.br\/wp-content\/uploads\/2023\/05\/Anchor-Kepler-Meyer.jpg\" data-rel=\"penci-gallery-image-content\"  data-rel=\"penci-gallery-image-content\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-5838\" src=\"https:\/\/gastropedia.com.br\/wp-content\/uploads\/2023\/05\/Anchor-Kepler-Meyer.jpg\" sizes=\"(max-width: 512px) 100vw, 512px\" srcset=\"https:\/\/gastropedia.com.br\/wp-content\/uploads\/2023\/05\/Anchor-Kepler-Meyer.jpg?v=1684937733 792w, https:\/\/gastropedia.com.br\/wp-content\/uploads\/2023\/05\/Anchor-Kepler-Meyer-300x193.jpg?v=1684937733 300w, https:\/\/gastropedia.com.br\/wp-content\/uploads\/2023\/05\/Anchor-Kepler-Meyer-768x495.jpg?v=1684937733 768w, https:\/\/gastropedia.com.br\/wp-content\/uploads\/2023\/05\/Anchor-Kepler-Meyer-585x377.jpg?v=1684937733 585w\" alt=\"\" width=\"512\" height=\"330\" \/><\/a><figcaption class=\"wp-element-caption\"><strong>Curva Kaplan-Meier de la progresi\u00f3n de c\u00e1ncer de ano &#8211; ANCHOR trial. Palefsky et al (5)<\/strong><\/figcaption><\/figure>\n<\/div>\n<h2 class=\"wp-block-heading\"><strong>Conclusi\u00f3n<\/strong><\/h2>\n<ul>\n<li>El c\u00e1ncer de ano y canal anal es bastante raro y no debe ser rastreado en la poblaci\u00f3n en general.<\/li>\n<li>Su incidencia aumenta bastante en ciertas poblaciones como: personas que viven con VIH, hombres que tienen sexo con hombres, mujeres con antecedentes de c\u00e1ncer o lesiones de alto grado en los genitales y enfermedades o tratamientos que cursen con inmunosupresi\u00f3n, lo que justifica el rastreo en estos grupos.<\/li>\n<li>La identificaci\u00f3n y el tratamiento de las lesiones intraepiteliales anales de alto grado en personas que viven con VIH se mostr\u00f3 eficaz en la prevenci\u00f3n del c\u00e1ncer de ano y canal anal.<\/li>\n<\/ul>\n<h2 class=\"wp-block-heading\"><strong>Referencias<\/strong><\/h2>\n<ol>\n<li>Clifford, Gary M., et al. &#8220;Un metaan\u00e1lisis de la incidencia del c\u00e1ncer anal por grupo de riesgo: hacia una escala unificada de riesgo de c\u00e1ncer anal.&#8221; <em>International journal of cancer<\/em> 148.1 (2021): 38-47.<\/li>\n<li>Stewart, David B., et al. &#8220;Las gu\u00edas de pr\u00e1ctica cl\u00ednica de la Sociedad Americana de Cirujanos de Colon y Recto para los c\u00e1nceres de c\u00e9lulas escamosas anales (revisadas en 2018).&#8221; <em>Diseases of the Colon &amp; Rectum<\/em> 61.7 (2018): 755-774.<\/li>\n<li>Hillman, Richard John, et al. &#8220;Gu\u00edas internacionales de la Sociedad de Neoplasia Anal para la pr\u00e1ctica del examen rectal anal digital.&#8221; <em>Journal of lower genital tract disease<\/em> 23.2 (2019): 138-146.<\/li>\n<li>Hillman, Richard John, et al. &#8220;2016 IANS gu\u00edas internacionales para los est\u00e1ndares de pr\u00e1ctica en la detecci\u00f3n de precursores del c\u00e1ncer anal.&#8221; <em>Journal of lower genital tract disease<\/em> 20.4 (2016): 283-291<\/li>\n<li>Palefsky, Joel M., et al. &#8220;Tratamiento de las lesiones intraepiteliales escamosas anales de alto grado para prevenir el c\u00e1ncer anal.&#8221; <em>New England Journal of Medicine<\/em> 386.24 (2022): 2273-2282.<\/li>\n<\/ol>\n<h2 class=\"wp-block-heading\"><strong>C\u00f3mo citar este art\u00edculo<\/strong><\/h2>\n<p class=\"has-background\" style=\"background-color: #ccd9d9;\">Ribeiro VL. Detecci\u00f3n de neoplasia intraepitelial anal y prevenci\u00f3n de c\u00e1ncer de ano. Gastropedia 2023, vol. 1. Disponible en: <a href=\"https:\/\/gastropedia.com.br\/?p=5828\" target=\"_blank\" rel=\"noreferrer noopener\">https:\/\/gastropedia.com.br\/sem-categoria\/rastreamento-de-neoplasia-intrapeitelial-anal-e-prevencao-de-cancer-de-anus\/<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Incidencia de c\u00e1ncer de ano y canal anal El carcinoma de c\u00e9lulas escamosas de ano y canal anal tiene una baja incidencia en la poblaci\u00f3n general (1-2\/100.000 personas-a\u00f1o). Sin embargo,&hellip;<\/p>\n","protected":false},"author":5682,"featured_media":8041,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_lmt_disableupdate":"","_lmt_disable":"","footnotes":""},"categories":[24,26],"tags":[],"ano":[137],"tipo":[121],"volumen":[57],"class_list":["post-8056","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-cirugia","category-colorrectal","ano-137","tipo-temas-generales","volumen-volume-i"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.2 (Yoast SEO v27.3) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Detecci\u00f3n de neoplasia intraepitelial anal y prevenci\u00f3n de c\u00e1ncer de ano - Gastropedia<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/gastropedia.pub\/es\/cirugia\/deteccion-de-neoplasia-intraepitelial-anal-y-prevencion-de-cancer-de-ano\/\" \/>\n<meta property=\"og:locale\" content=\"es_ES\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Detecci\u00f3n de neoplasia intraepitelial anal y prevenci\u00f3n de c\u00e1ncer de ano\" \/>\n<meta property=\"og:description\" content=\"Incidencia de c\u00e1ncer de ano y canal anal El carcinoma de c\u00e9lulas escamosas de ano y canal anal tiene una baja incidencia en la poblaci\u00f3n general (1-2\/100.000 personas-a\u00f1o). Sin embargo,&hellip;\" \/>\n<meta property=\"og:url\" content=\"https:\/\/gastropedia.pub\/es\/cirugia\/deteccion-de-neoplasia-intraepitelial-anal-y-prevencion-de-cancer-de-ano\/\" \/>\n<meta property=\"og:site_name\" content=\"Gastropedia\" \/>\n<meta property=\"article:published_time\" content=\"2023-06-08T04:30:12+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2023-12-29T21:33:14+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/gastropedia.pub\/es\/wp-content\/uploads\/2023\/11\/vini1-3.jpg?v=1701258039\" \/>\n\t<meta property=\"og:image:width\" content=\"484\" \/>\n\t<meta property=\"og:image:height\" content=\"400\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"Vin\u00edcius Lacerda Ribeiro\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Escrito por\" \/>\n\t<meta name=\"twitter:data1\" content=\"Vin\u00edcius Lacerda Ribeiro\" \/>\n\t<meta name=\"twitter:label2\" content=\"Tiempo de lectura\" \/>\n\t<meta name=\"twitter:data2\" content=\"4 minutos\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/gastropedia.pub\\\/es\\\/cirugia\\\/deteccion-de-neoplasia-intraepitelial-anal-y-prevencion-de-cancer-de-ano\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/gastropedia.pub\\\/es\\\/cirugia\\\/deteccion-de-neoplasia-intraepitelial-anal-y-prevencion-de-cancer-de-ano\\\/\"},\"author\":{\"name\":\"Vin\u00edcius Lacerda Ribeiro\",\"@id\":\"https:\\\/\\\/gastropedia.pub\\\/es\\\/#\\\/schema\\\/person\\\/5cd9b19a7267099dbad4fe8440d26c21\"},\"headline\":\"Detecci\u00f3n de neoplasia intraepitelial anal y prevenci\u00f3n de c\u00e1ncer de ano\",\"datePublished\":\"2023-06-08T04:30:12+00:00\",\"dateModified\":\"2023-12-29T21:33:14+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/gastropedia.pub\\\/es\\\/cirugia\\\/deteccion-de-neoplasia-intraepitelial-anal-y-prevencion-de-cancer-de-ano\\\/\"},\"wordCount\":757,\"commentCount\":0,\"image\":{\"@id\":\"https:\\\/\\\/gastropedia.pub\\\/es\\\/cirugia\\\/deteccion-de-neoplasia-intraepitelial-anal-y-prevencion-de-cancer-de-ano\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/gastropedia.pub\\\/es\\\/wp-content\\\/uploads\\\/2023\\\/11\\\/vini1-3.jpg?v=1701258039\",\"articleSection\":[\"Cirug\u00eda\",\"Colorrectal\"],\"inLanguage\":\"es\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\\\/\\\/gastropedia.pub\\\/es\\\/cirugia\\\/deteccion-de-neoplasia-intraepitelial-anal-y-prevencion-de-cancer-de-ano\\\/#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/gastropedia.pub\\\/es\\\/cirugia\\\/deteccion-de-neoplasia-intraepitelial-anal-y-prevencion-de-cancer-de-ano\\\/\",\"url\":\"https:\\\/\\\/gastropedia.pub\\\/es\\\/cirugia\\\/deteccion-de-neoplasia-intraepitelial-anal-y-prevencion-de-cancer-de-ano\\\/\",\"name\":\"Detecci\u00f3n de neoplasia intraepitelial anal y prevenci\u00f3n de c\u00e1ncer de ano - 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