The incidence of the postoperative IASC is predominantly determined by preoperative disease severity. IASC have a detrimental influence on the long-term outcome following intestinal resections in patients with Crohn's disease, leading to increased number of repeat resection surgery.
The multidisciplinary approach at specialized units will lead to successful outcome in >60% of patients with Crohn's perianal fistulas. The presence of Crohn's colitis, young age at disease onset, and presence of high fistulas are indicators of poor prognosis.
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