Open AccessPrevalence and risk factors for colorectal adenomas in patients with ulcerative colitis
Author(s) -
Gordillo Jordi,
Zabana Yamile,
GarciaPlanella Esther,
Mañosa Míriam,
Llaó Jordina,
Gich Ignasi,
Marín Laura,
Szafranska Justyna,
Sáinz Sergio,
Bessa Xavier,
Cabré Eduard,
Domènech Eugeni
Publication year - 2018
Publication title -
ueg journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.667
H-Index - 35
eISSN - 2050-6414
pISSN - 2050-6406
DOI - 10.1177/2050640617718720
Subject(s) - medicine , ulcerative colitis , gastroenterology , risk factor , colorectal cancer , disease , cancer
Background Patients with ulcerative colitis (UC) have an increased risk of colorectal cancer. Scarce data regarding the development of adenomas in these patients are available both for normal and colitic mucosa. Objective The objective of this article is to evaluate the prevalence of adenomatous polyps and associated risk factors in patients with UC. Methods Patients with UC were identified from the databases of two tertiary referral centers. Medical, endoscopic and histologic reports were reviewed. Results A total of 403 patients were included (53% male; 33% extensive colitis) and 1065 colonoscopies (median per patient, 2) were recorded and analyzed. Seventy‐four adenomas in 47 patients (11.7%) and three cases of colorectal cancer were found during a median follow‐up of 6.3 years. The cumulative risk of colorectal adenoma was 4.7%, 16.7%, 23.6% and 34.4% at 10, 20, 30 and 40 years from UC diagnosis, respectively. The cumulative risk of developing metachronous colorectal adenoma was 66.7%, 87.9%, and 90.9% at 5, 10, and 15 years from first adenoma detection. Older age at UC diagnosis and longer disease duration were independent risk factors for colorectal adenoma development. Conclusions The prevalence of colorectal adenomas among UC patients seems to be higher than previously reported, although lower than in the background population.