Oral Vitamin B Supplementation After Roux-en-Y Gastric Bypass: a Systematic Review.

Background: Many respectable guidelines recommend lifelong vitamin B injections for Roux-en-Y gastric bypass (RYGB) patients in the absence of lack of consensus on the efficacy of oral route of prophylaxis and the appropriate doses needed for this purpose. The purpose of this review was to examine the published English language scientific literature in accordance with PRISMA principles to find out if orally given vitamin B is adequate for prophylactic purposes in RYGB patients and the appropriate dosages needed for this purpose if it is.

Methods: We examined the PubMed database for all English language articles examining various doses of oral vitamin B supplementation after proximal RYGB in adult patients.

Current status of mini-gastric bypass.

Mini-gastric bypass (MGP) is a promising bariatric procedure. Tens of thousands of this procedure have been performed throughout the world since Rutledge performed the first procedure in the United States of America in 1997. Several thousands of these have even been documented in the published scientific literature.