Impact of Endometriosis on the Progression of Inflammatory Bowel Diseases: A Multicenter Retrospective Study
Lucas Guillo1, Oumaya El Oumami2, Philippe Seksik3
1Department of Gastroenterology, University Hospital of Marseille Nord, University of Aix-Marseille, Marseille, France.
Introduction:
Women with endometriosis have a higher risk of developing inflammatory bowel diseases (IBDs). This study aimed to better understanding the impact of endometriosis on the course of IBD.
Methods:
We conducted a retrospective cohort study in 18 French and Belgian IBD centers between June 2022 and March 2023. Any patient with both conditions was eligible for inclusion. They were randomly matched to 1 or 2 patients with IBD without endometriosis. The impact on IBD progression was assessed using a composite severity criterion including intestinal damage or need for bowel surgery.
Results:
Overall, 207 patients with both conditions (149 Crohn's disease [CD]; 58 ulcerative colitis [UC]) were matched to 409 patients with IBD alone. The median follow-up duration for IBD was 10 years (5.75-17). No difference was observed between the 2 groups regarding CD location, disease phenotype, and anoperineal involvement. Proctitis were more frequent in patients with UC and endometriosis. Patients with IBD with endometriosis were significantly less exposed to immunosuppressants (UC P < 0.01; CD P < 0.001) and biologics (UC P < 0.01; CD P < 0.001). Patients with CD with endometriosis had a less severe disease course compared with patients without endometriosis (hazard ratio 0.68, 95% confidence interval 0.50-0.92, P = 0.011). Patients with UC with endometriosis had not a significant different disease course compared with patients without endometriosis (hazard ratio 1.73, 95% confidence interval 0.74-4.00, P = 0.20). These results were similar in the subgroup of patients with endometriosis treated surgically.
Discussion:
Endometriosis does not negatively influence the course of IBD, patients with CD even have a less severe progression. Patients were significantly less exposed to immunosuppressants and biologics.
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