Giulia Santi1, Pierre Michetti2,3, Florian Froehlich4, Jean-Benoît Rossel5, Valérie Pittet5, Michel H Maillard2,3. 1. Faculty of Biology & Medicine, University of Lausanne, Lausanne, Switzerland. 2. Crohn's & Colitis Center, Gastroentérologie Beaulieu SA, Lausanne, Switzerland. 3. Service of Gastroenterology & Hepatology, Lausanne University Hospital, Lausanne, Switzerland. 4. Division of Gastroenterology & Hepatology, Basel University Hospital, Basel, Switzerland. 5. Center for Primary Care & Public Health, University of Lausanne, Lausanne, Switzerland.
Abstract
BACKGROUND: Long-standing ulcerative colitis has been associated with an increased risk of colorectal cancer (CRC). Current guidelines recommend endoscopic CRC screening after 8 years of disease duration. The objectives of our study were to assess the adherence to recommendations and the quality of endoscopic procedure in long-standing ulcerative colitis. METHODS: This is a retrospective cohort study. We selected patients included in the Swiss IBD cohort with a disease duration of ≥8 years and an extension above the rectosigmoid junction. The complementary medical chart review focused on endoscopy and associated histological reports in 8 Swiss centers. Descriptive analyses focused on patients and their colonoscopies. RESULTS: 309 colonoscopies were conducted among 116 patients with the following characteristics: women 47%, mean age at diagnosis 31 years, and pancolitis disease extent in 65.5% of cases; 38.8% of patients had a first screening colonoscopy <8 years, 13.8% between 8 and 10 years, and 47.4% >10 years. Cecal intubation was performed in 94.5% of cases, and bowel preparation was good to excellent in 61.5% of endoscopies. Chromoendoscopy was used in 7.4% of cases, and the mean withdrawal time was 16.4 min. Dysplasia was found in 6.2% of cases. CONCLUSION: Despite current international recommendations, a significant number of patients did not receive a proper endoscopic surveillance. An increased use of chromoendoscopy, monitoring of withdrawal time, and appropriate bowel preparation would increase the quality of CRC screening. The adherence to screening guidelines and endoscopic quality should be promoted and standardized.
BACKGROUND: Long-standing ulcerative colitis has been associated with an increased risk of colorectal cancer (CRC). Current guidelines recommend endoscopic CRC screening after 8 years of disease duration. The objectives of our study were to assess the adherence to recommendations and the quality of endoscopic procedure in long-standing ulcerative colitis. METHODS: This is a retrospective cohort study. We selected patients included in the Swiss IBD cohort with a disease duration of ≥8 years and an extension above the rectosigmoid junction. The complementary medical chart review focused on endoscopy and associated histological reports in 8 Swiss centers. Descriptive analyses focused on patients and their colonoscopies. RESULTS: 309 colonoscopies were conducted among 116 patients with the following characteristics: women 47%, mean age at diagnosis 31 years, and pancolitis disease extent in 65.5% of cases; 38.8% of patients had a first screening colonoscopy <8 years, 13.8% between 8 and 10 years, and 47.4% >10 years. Cecal intubation was performed in 94.5% of cases, and bowel preparation was good to excellent in 61.5% of endoscopies. Chromoendoscopy was used in 7.4% of cases, and the mean withdrawal time was 16.4 min. Dysplasia was found in 6.2% of cases. CONCLUSION: Despite current international recommendations, a significant number of patients did not receive a proper endoscopic surveillance. An increased use of chromoendoscopy, monitoring of withdrawal time, and appropriate bowel preparation would increase the quality of CRC screening. The adherence to screening guidelines and endoscopic quality should be promoted and standardized.
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