Diseases of the colon and rectum · 2022
Image-Enhanced Endoscopy Surveillance of Colon and Pouch Dysplasia in IBD.
МетаанализСтатьяНазвание и аннотация: Перевод пока не подготовлен
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Parigi Tommaso Lorenzo, Nardone Olga Maria, Iacucci Marietta
Аннотация
BACKGROUND: Patients with longstanding ulcerative colitis and Crohn's colitis are at risk for developing colorectal cancer and need regular endoscopic surveillance to detect and remove precursor lesions. To do so, different technologies are available.
DATA SOURCES: The sources are observational and controlled studies, meta-analysis, and expert consensus articles available on PubMed.
STUDY SELECTION: The selected materials include articles reporting outcomes of and recommendations on endoscopic surveillance and resection of dysplasia in the gastrointestinal tract, including the ileoanal pouch and the anal transition zone, in patients with inflammatory bowel disease.
MAIN OUTCOME MEASURES: Incidence and detection rate of dysplasia and cancer with different endoscopic techniques in patients with inflammatory bowel disease.
RESULTS: Risk of cancer is proportional to the duration and extent of the disease, and surveillance interval should be tailored on the individual risk in a range of 1 to 5 years. High-definition imaging and virtual chromoendoscopy have improved the detection of dysplasia and are now comparable with conventional dye spray chromoendoscopy. After restorative proctocolectomy with ileoanal pouch, the risk of cancer is modest, but its high mortality warrants endoscopic surveillance. The evidence to guide pouch surveillance is limited, and recently, the first expert consensus provided a framework of recommendations, which include an initial assessment 1 year after surgery and follow-up depending on individual risk factors.
LIMITATIONS: The limitation includes scarcity of data on ileoanal pouch surveillance.
CONCLUSIONS: Virtual chromoendoscopy and high-definition imaging have improved endoscopic surveillance, and more progress is expected with the implementation of artificial intelligence systems.
DATA SOURCES: The sources are observational and controlled studies, meta-analysis, and expert consensus articles available on PubMed.
STUDY SELECTION: The selected materials include articles reporting outcomes of and recommendations on endoscopic surveillance and resection of dysplasia in the gastrointestinal tract, including the ileoanal pouch and the anal transition zone, in patients with inflammatory bowel disease.
MAIN OUTCOME MEASURES: Incidence and detection rate of dysplasia and cancer with different endoscopic techniques in patients with inflammatory bowel disease.
RESULTS: Risk of cancer is proportional to the duration and extent of the disease, and surveillance interval should be tailored on the individual risk in a range of 1 to 5 years. High-definition imaging and virtual chromoendoscopy have improved the detection of dysplasia and are now comparable with conventional dye spray chromoendoscopy. After restorative proctocolectomy with ileoanal pouch, the risk of cancer is modest, but its high mortality warrants endoscopic surveillance. The evidence to guide pouch surveillance is limited, and recently, the first expert consensus provided a framework of recommendations, which include an initial assessment 1 year after surgery and follow-up depending on individual risk factors.
LIMITATIONS: The limitation includes scarcity of data on ileoanal pouch surveillance.
CONCLUSIONS: Virtual chromoendoscopy and high-definition imaging have improved endoscopic surveillance, and more progress is expected with the implementation of artificial intelligence systems.