Gastric bypass with jejunal interposition is a version of the distal Roux-en-Y. Ninety cm of the jejunum is interposed between the gastric stoma and the ileum. This new procedure initially was used in super-obese patients mainly to facilitate the gastric anastomosis.
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Torres, J.C. Gastric Bypass Distal Roux-en-Y with Jejunal Interposition. OBES SURG 3, 191–195 (1993). https://doi.org/10.1381/096089293765559584
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DOI: https://doi.org/10.1381/096089293765559584