Clinical Research Directory

Inclusion Criteria: * All patients aged 18 years or older with Crohn's disease who undergo resection with an endoscopically accessible primary anastomosis which results in macroscopic normality. * Patients having a reversal of a temporary ileostomy created after previous surgery for Crohn's disease may be enrolled provided that the reversal of the ileostomy results in a primary anastomosis and macroscopic normality of the remaining bowel. * Patients with co-existing perianal disease may be included provided the resection has led to a primary anastomosis and macroscopic normality of the intestine. * Patients must have proven history of Crohn's disease based on (clinical, radiologic, endoscopic and histologic criteria). Exclusion Criteria: * Patients with anastomosis which is endoscopically inaccessible by standard colonoscopy. * Patients in whom there is persisting macroscopic abnormality post-surgical resection. * Patients with Crohn's disease who have an end stoma (ileostomy or colostomy). * Patients for whom endoscopy is not suitable due to co-morbidities or unwell clinical state * Inability to give informed consent. * Inability to obtain access to the anastomosis at colonoscopy. * Suspected perforation of the gastrointestinal tract. * Patients who are pregnant or breastfeeding.