Abstract
Background
Since our last publication of algorithms for the management of perianal fistulas in patients with Crohn’s disease, researchers have proposed a treat to target strategy systematic combotherapy for anal lesions, and indications for stem cell injection. In the absence robust publications, the Société Nationale Française de Coloproctologie (French National Society of Coloproctology [SNFCP]) wished to establish a group consensus using the Delphi method.
Methods
From October 2020 to January 2021, a scientific committee and panel of gastroenterologists and surgeons established answers which were submitted to the members of the SNFCP during a national conference in November 2020. Three questions were clarified and reformulated, and then submitted during a third and final round of consultation of members of the SNFCP.
Results
The target was defined as being the response obtained in every domain (symptoms, physical and radiological evaluation) which could be considered satisfactory, without the need to intensify therapeutic management. By consensus, the time required for clinical evaluation of the efficacy of treatment was 6 months. A response on magnetic resonance imaging (MRI) should include the absence of a collection of 10 mm or more in size at 6 months, and a frank decrease or complete disappearance of hyperintensity in T1 and T2 sequences of the main tract at 12 months. Systematic association of an immunosuppressant with tumor necrosis factor inhibitors did not reach the consensus level for adalimumab (50%), but just did for infliximab (70%). The majority of the respondents considered failure of one, or even two lines of different biotherapies to be potential indications for injection of stem cells.
Conclusions
These findings reinforce the importance of composite targets including MRI evaluation, and underscore the need for precise timing of evaluation. Combotherapy is only recommended with infliximab. Injection of stem cells is a second- or third-line option.
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Acknowledgements
The members of the SNFCP and Members of the GETAID: Guillaume Bouguen (Digestive Diseases Unit, CHU Pontchaillou, 2 rue Henri Le Guilloux 35033 Rennes, France), David Laharie (Hepato-Gastroenterology Unit, CHU Haut Lévèque, 33600 Pessac ), Eddy Cotte (Digestive and Endocrine Surgery Unit, Hospital Lyon-Sud, 165 chemin du grand Revoyet, 69495 Pierre Bénite cedex ), Yves Panis (Digestive Surgery Unit, Beaujon Hospital, 100 boulevard du Général Leclerc, 92110 Clichy), L Peyrin-Biroulet (Hepato-Gastroenterology Unit, CHRU Nancy, 54511 Vandoeuvre les Nancy), Xavier Roblin (Gastroenterology, Hepatology and Inflammatory Bowel Diseases Unit, CHU Saint Etienne, 25 boulevard Pasteur, 42055 Saint-Etienne), Philippe Zerbib (Digestive Unit, Hospital Huriez, rue Michel Polonowski, 59037 Lille) as co-authors, Emmanuelle Babin-Pigot and Marie Ferry for essential logistic assistance.
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DB: Takeda as consultant, Abbvie Janssen Takeda for learning. LS: Takeda Abbvie Janssen MSD for clinical research, Takeda as consultant, Takeda Abbvie Janssen Amgen Ferring for learning. VdP: Takeda as consultant, Abbvie, Amgen, Tillots for learning. GS: Takeda, Janssen as consultant, Abbvie, Takeda for learning. LA: Abbvie, Takeda, Celltrion for clinical research, Takeda as consultant, Takeda, Abbvie, Janssen, Ferring for learning. FP: Abbvie, Takeda for learning.
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Bouchard, D., Pigot, F., de Parades, V. et al. Management of perianal fistulas in Crohn’s disease: a 2021 update of the French National Society of Coloproctology consensus. Tech Coloproctol 26, 805–811 (2022). https://doi.org/10.1007/s10151-022-02678-x
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DOI: https://doi.org/10.1007/s10151-022-02678-x