[Risk factors for high-grade squamous intraepithelial lesions or cervical cancer in chronic inflammatory bowel disease]

Abstract

Introduction: Chronic inflammatory bowel disease (IBD) is thought to increase the risk of high-grade histological intraepithelial lesions (HGIL) and cervical cancer. The risk factors for developing these lesions are poorly understood.

Materials and methods: This is a single-center retrospective case-control study including IBD patients followed at our University Hospital Center from 2011 to 2021 who presented with HGIL or cervical cancer. Four controls were case-matched according to IBD type, age, active smoking and multiparity.

Results: Eighteen cases and 72 controls were included. We found no significant differences between the 2 groups with regard to mean age at IBD diagnosis, mean duration of IBD, IBD location, history of IBD-related surgery or even association with another chronic inflammatory disease. In our study, the use of immunosuppressants/biotherapies in these patients [50% (9/18) for cases vs. 56% (40/72) for controls; P=0.9] was not a risk factor for IGRA or cervical cancer. Similarly, neither the total duration of exposure to immunosuppressants/biotherapies (9.9±8years for cases vs. 6.6±5.3years for controls; P=0.1), nor combined therapies [11% (2/18) for cases vs. 6% (4/72) for controls; P=0.3], nor azathioprine or methotrexate use [22% (4/18) for cases vs. 11% (8/72) for controls; P=0.3] were found to be risk factors.

Conclusion: In our study, we found no risk factors for patients with IBD to develop IGRA or cervical cancer.

Keywords: Carcinome épidermoïde; Crohn's disease; Haemorrhagic rectocolitis; Haut grade; High-grade; Lésions malpighiennes; Maladie de Crohn; Rectocolite hémorragique; Squamous cell carcinoma; Squamous lesions.