Patterns of Heal Recurrence in Crohnʼs Disease

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Abstract
To gain information on the pathogenesis of ileal recurrence, 86 patients with Crohn's disease undergoing their first ileocolic resection were randomized to receive either an end-to-end (n = 47) or side-to-end (n = 39) anastomosis. The demographic and clinical characteristics of both groups were similar. There were no statistically significant differences between the two groups in postoperative complications or in the subsequent development of symptomatic or documented recurrences. Among the 43 patients with follow-up in the end-to-end anastomosis group, there were 10 documented ileal recurrences (23%), and all involved distal ileum in the characteristic preanastomotic location. Among the 35 patients with follow-up in the side-to-end anastomosis group, there were 11 documented recurrences (31%, not significant). The ileal recurrence pattern could be determined accurately in five of these 11 patients and involved the ileum adjacent to the colon, but spared the distal ileum in the blind pouch. This study suggests that the fecal stream and reflux of colonic contents are important factors in determining the pattern of ileal recurrence after ileocolectomy for Crohn's disease.