Comparison of the risk of Crohn's disease postoperative recurrence between modified Rutgeerts score i2a and i2b categories: an individual patient data meta-analysis - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Journal of Crohn's & Colitis Année : 2022

Comparison of the risk of Crohn's disease postoperative recurrence between modified Rutgeerts score i2a and i2b categories: an individual patient data meta-analysis

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Peter de Cruz
  • Fonction : Auteur
Momar Diouf
  • Fonction : Auteur
Mathurin Fumery

Résumé

BACKGROUND: The modified Rutgeerts' score differentiates i2a - lesions confined to the anastomosis - and i2b - more than 5 aphthous ulcers in the neoterminal ileum with normal intervening mucosa, with or without anastomotic lesions - categories. Its relevance for the therapeutic management of Crohn's disease (CD) patients after ileocolic resection is still debated. Our objective was to compare the postoperative recurrence risk in patients with an i2a or i2b score using an individual patient data meta-analysis. METHODS: We conducted a systematic literature search until July 2020 to identify all relevant studies reporting the i2a/i2b status in the year following ileocolic resection and clinical and/or surgical postoperative CD recurrence in their follow-up. Individual patient level data were obtained from the c RESULTS: Seven studies published between 2008 and 2019 were included corresponding to 400 patients: 189 (47%) i2a and 211 (53%) i2b. Median (interquartile range, IQR) time from ileocolic resection to ileocolonoscopy was 6.2 (5.5, 7.9) months and median (IQR) follow-up time after ileocolonoscopy was 4.5 (2.9, 7.3) years. The risk of clinical postoperative recurrence at 1 and 3 years was 11% [6%-15%], and 25% [18%-32%] in the i2a group versus 9% [5%-13%] and 33% [26%-41%] in the i2b group (p=0.63 and p=0.12, respectively). No significant difference was observed in terms of time to clinical postoperative recurrence (p=0.16) or surgical postoperative recurrence (p=0.87). Results did not change after excluding patients having initiated an immunosuppressant or a biologic in the three months after endoscopy (remaining cohort, n=361). CONCLUSION: In this individual patient data meta-analysis, no difference was observed between i2a and i2b subcategories with regards to clinical or surgical postoperative recurrence. As we wait for prospective trials, the same treatment strategy could be applied to all patients classified as i2 on the Rutgeerts score.
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hal-03783917 , version 1 (22-09-2022)

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Pauline Rivière, Joel Pekow, Nassim Hammoudi, Pauline Wils, Peter de Cruz, et al.. Comparison of the risk of Crohn's disease postoperative recurrence between modified Rutgeerts score i2a and i2b categories: an individual patient data meta-analysis. Journal of Crohn's & Colitis, 2022, pp.jjac137. ⟨10.1093/ecco-jcc/jjac137⟩. ⟨hal-03783917⟩
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