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The guidelines support quality improvement in endoscopy by providing explicit recommendations on systematic monitoring, assessment and modification of endoscopy service delivery to yield benefits for all patients affected by the practice of gastrointestinal endoscopy.

Background & Aims Crohn’s disease (CD) is a lifelong illness with substantial morbidity, although new therapies and treatment paradigms have been developed. We provide guidance for treatment of ambulatory patients with mild to severe active luminal CD. Methods We performed a systematic review to identify published studies of the management of CD. The quality of evidence and strength of recommendations were rated according to the Grading of Recommendation Assessment, Development and Evaluation (GRADE) approach. Statements were developed through an iterative online platform and then finalized and voted on by a group of specialists. Results The consensus includes 41 statements focused on 6 main drug classes: antibiotics, 5-aminosalicylate, corticosteroids, immunosuppressants, biologic therapies, and other therapies. The group suggested against the use of antibiotics or 5-aminosalicylate as induction or maintenance therapies. Corticosteroid therapies (including budesonide) can be used as induction, but not maintenance therapies. Among immunosuppressants, thiopurines should not be used for induction, but can be used for maintenance therapy for selected low-risk patients. Parenteral methotrexate was proposed for induction and maintenance therapy in patients with corticosteroid-dependent CD. Biologic agents, including tumor necrosis factor antagonists, vedolizumab, and ustekinumab, were recommended for patients failed by conventional induction therapies and as maintenance therapy. The consensus group was unable to clearly define the role of concomitant immunosuppressant therapies in initiation of treatment with a biologic agent. Conclusions Optimal management of CD requires careful patient assessment, acknowledgement of patient preferences, evidence-based use of existing therapies, and thorough assessment to define treatment success.

The purpose of this study was to determine the incidence of postinfectious irritable bowel syndrome (IBS) among community subjects with positive stool studies. This was a prospective cohort study whereby all individuals with stool-positive acute enteric infection (AEI) were recruited from 3 health regions in Ontario, Canada. Each person completed questionnaires regarding preinfectious bowel habit and their bowel habit 3 months postinfection. Manning and Rome I criteria were used to diagnose irritable bowel syndrome. Two hundred thirty-one patients participated. Forty had preexisting IBS and were excluded. Of the remaining 191 patients, 7 developed irritable bowel syndrome, for an incidence of 3.7% (95% confidence interval: 1.0-6.3%). Fever during AEI was the only identifiable risk factor for developing postinfectious IBS (odds ratio, 11.96; P = .02). The incidence of postinfectious IBS in community subjects is 3.7%. Fever during the AEI may be an important risk factor for this condition.