A recent study (S Singh et al. Alimentary Pharmacology & Therapeutics; 2015: 42: 783-92; article first published online: 11 AUG 2015. DOI: 10.1111/apt.13356) gives more specific data regarded the outcomes of fecal diversion for perianal Crohn’s disease. While diversion can be helpful, the meta-analysis indicates that only one-sixth of patients were able to achieve successful bowel continuity/reconnection. The authors did not note a significant improvement in successful bowel continuity restoration in the era of biologics compared with prebiologic era (17.6% vs13.7%).
An excerpt of a summary of this study from Gastroenterology & Hepatology (September 2015)
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