Abstract

There is limited scientific evidence available to stratify the risk of developing metachronous colorectal cancer after resection of colonic polyps and to determine surveillance intervals and is mostly based on observational studies. However, while awaiting further evidence, the criteria of endoscopic follow-up needs to be unified in our setting. Therefore, the Spanish Association of Gastroenterology, the Spanish Society of Family and Community Medicine, the Spanish Society of Digestive Endoscopy, and the Colorectal Cancer Screening Group of the Spanish Society of Epidemiology, have written this consensus document, which is included in chapter 10 of the “Clinical Practice Guideline for Diagnosis and Prevention of Colorectal Cancer. 2018 Update”. Important developments will also be presented as regards the previous edition published in 2009. First of all, situations that require and do not require endoscopic surveillance are established, and the need of endoscopic surveillance of individuals who do not present a special risk of metachronous colon cancer is eliminated. Secondly, endoscopic surveillance recommendations are established in individuals with serrated polyps. Finally, unlike the previous edition, endoscopic surveillance recommendations are given in patients operated on for colorectal cancer. At the same time, it represents an advance on the European guideline for quality assurance in colorectal cancer screening, since it eliminates the division between intermediate risk group and high risk group, which means the elimination of a considerable proportion of colonoscopies of early surveillance. Finally, clear recommendations are given on the absence of need for follow-up in the low risk group, for which the European guidelines maintained some ambiguity. La evidencia disponible para estratificar el riesgo de presentar un cáncer colorrectal metacrónico tras la extirpación de pólipos colorrectales y determinar los intervalos de vigilancia es limitada y se basa en estudios observacionales. No obstante, a la espera de nuevas evidencias, es necesario unificar los criterios del seguimiento endoscópico en nuestro medio. Por ello, desde las principales sociedades científicas involucradas en el manejo de estos pacientes, como son la Asociación Española de Gastroenterología, la Sociedad Española de Medicina Familiar y Comunitaria, la Sociedad Española de Endoscopia Digestiva y el Grupo de Cribado de Cáncer Colorrectal de la Sociedad Española de Epidemiología, se ha creado este documento de consenso, que se encuentra incluido en el capítulo 10 de la «Guía de Práctica Clínica de Diagnóstico y Prevención del Cáncer Colorrectal. Actualización 2018». A continuación, se presentarán importantes novedades respecto a la edición previa publicada en 2009. En primer lugar, se establecen situaciones que requieren y no requieren vigilancia endoscópica y se elimina la necesidad de realizar seguimiento en individuos que no presentan un riesgo especial de cáncer de colon metacrono. En segundo lugar, se establecen recomendaciones de vigilancia endoscópica en individuos con pólipos serrados. Finalmente, a diferencia de la edición anterior, se dan recomendaciones de vigilancia endoscópica en individuos intervenidos por cáncer colorrectal. Paralelamente, supone un avance sobre la guía europea de calidad en el cribado del cáncer colorrectal, ya que elimina la división entre grupo de riesgo medio y grupo de riesgo alto, lo que supone la eliminación de una proporción considerable de colonoscopias de vigilancia precoz. Finalmente, se dan recomendaciones claras sobre la ausencia de necesidad de seguimiento en el grupo de riesgo bajo, para el que la guía europea mantenía cierta ambigüedad.

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