The impact of colectomy on the course of extraintestinal manifestations in Swiss inflammatory bowel disease cohort study patients.

Roth, René; Vavricka, Stephan; Scharl, Michael; Schreiner, Philipp; Safroneeva, Ekaterina; Greuter, Thomas; Zeitz, Jonas; Misselwitz, Benjamin; Schoepfer, Alain; Barry, Mamadou Pathé; Rogler, Gerhard; Biedermann, Luc (2021). The impact of colectomy on the course of extraintestinal manifestations in Swiss inflammatory bowel disease cohort study patients. United european gastroenterology journal, 9(7), pp. 773-780. Sage 10.1002/ueg2.12125

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BACKGROUND AND AIMS

Extraintestinal manifestations are reported to occur in up to 45% of inflammatory bowel disease (IBD) patients during the course of disease. It is unknown whether colectomy reduces the rate of de novo extraintestinal manifestations (EIMs) or impacts on severity of EIMs following a parallel versus independent disease course from underlying IBD.

METHODS

Using data from the Swiss Inflammatory Bowel Disease Cohort Study we aimed to analyse the course of EIMs in ulcerative colitis (UC) and Crohn's disease (CD) patients undergoing colectomy during the cohort's prospective follow-up.

RESULTS

One hundred and twenty-one IBD patients (33 CD, 81 UC and seven unclassified) underwent colectomy during prospective follow-up in the Swiss Inflammatory Bowel Disease Cohort Study. Within the 114 patients with UC or CD any EIM was reported in 40 (nine CD and 31 UC) patients. Activity of EIMs ceased entirely after colectomy in 21 patients (52.5%). Complete cessation of EIM after colectomy was higher in patients with UC versus CD with 58.1% versus 33.3%. After colectomy, 29 out of the 114 patients (25.4%) experienced any EIM. Two thirds of these (19 patients) represented persisting EIMs, while in one third (10 patients) EIM represented a de-novo event after colectomy. Overall, 13.5% of IBD patients developed a de-novo EIM after colectomy.

CONCLUSIONS

In IBD patients undergoing colectomy, EIMs present prior to surgery will persist in about half of patients. Complete cessation of EIM after colectomy may be less common in CD than in UC. In patients who never experienced EIMs prior to colectomy de-novo manifestations thereafter should be expected in up to one in seven patients.

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