N32 Implementation of chromoendoscopy in colorectal cancer screening in patients with Inflammatory Bowel Disease

Abstract

Abstract Background Patients with inflammatory bowel disease (IBD) have a higher risk of colorectal cancer (CRC), so we must implement the best available endoscopic technique to detect it early, decreasing the risk of CRC and death. There is low adherence to CRC screening by chromoendoscopy with dye in patients with IBD, despite the fact that national and international clinical practice guidelines consider this technique of choice based on the available evidence. Description Of The Initiative The standardization of a screening procedure, based on the evidence of endoscopy, allows any member of the team, doctor or nurse, to detect the need for the indication, improving screening in terms of follow-up interval and technique. Likewise, the inflammatory nurse will have to know the technique to be able to inform the patient and improve their adherence, preparation and resolve doubts. The main aim is early detection of dysplasia and CRC. The side aims are: ▪ To improve the implementation of chromoendoscopy as a technique for CRC screening. ▪ Improve patient adherence to colonoscopy. Methods The development of an endoscopic follow-up procedure according to risk factors in patients with ulcerative colitis and colonic Crohn's disease, in which chromoendoscopy is the technique of choice. The technique in our center is with 0.4% carmine indigo diffusion with catheter-diffuser, but it is possible to adapt other alternatives according to availability. The procedure establishes the follow-up interval at 1, 3 or 5 years depending on the low, medium or high risk, respectively, depending on the activity, extent and duration of the disease, presence of stenosis and pseudopolyps, primary sclerosing cholangitis and/or family history of CRC. Results In our center, 100% of screenings are performed by chromoendoscopy with dye, by a single expert endoscopist, scheduled with a longer examination time than a conventional colonoscopy and with optimization of bowel preparation. Conclusion CRC screening of patients with IBD should preferably be performed with chromoendoscopy with dye, establishing follow-up intervals depending on known risk factors, both clinical, endoscopic and histological, and this indication should be standardized in a procedure that is known to all members of the team.