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Massive or repeated intestinal resections for Crohn’s disease (CD) could lead to disabling consequences. The present study aimed to assess the effect of preoperative anti-TNF therapy on the length of resected bowel and identify risk factors for postoperative morbidity following ileocolic resection for CD. Patients undergoing elective ileocolic resection for CD were included prospectively. Medical variables including demographics, Montréal classification, preoperative treatment, surgical details and 30-day postoperative morbidity were collected. Potential impact of preoperative anti-TNF treatment on length of ileocolic specimen and risk factors for postoperative morbidity were investigated. One hundred and eight-four patients were included in this study, and 66 (35.9%) of them received anti-TNF agents within 8 weeks prior to surgery. Primary anastomosis was performed in 145 patients (78.8%). The mean length of resected intestine was 10 cm shorter in subjects receiving preoperative anti-TNF treatment than those without preoperative anti-TNF therapy ( P  &lt; 0.001). The rates of postoperative overall, infectious and intra-abdominal septic morbidity were 29.9%, 19.0% and 7.6%, respectively. In multivariate analysis, anti-TNF therapy &lt; 8 weeks before surgery was independently associated with a shorter length of resected bowel but didn’t increase overall and septic complications, while systemic steroids use within 8 weeks prior to surgery independently increased overall complications and intra-abdominal sepsis. Preoperative anti-TNF therapy was associated with a shorter length of resected bowel but not the overall and septic postoperative complications in ileocolic resection for CD. Weaning off systemic steroids before surgery may improve postoperative outcomes in patients with CD.

Preoperative Anti-TNF Therapy is Associated with a Shorter Length of Resected Bowel in Patients Undergoing Ileocolic Resection for Crohn’s Disease