What Is the Current Evidence to Define the Length of the Alimentary Limb in the Laparoscopic Gastric Bypass Technique?
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We read the article by Dr. Jiadi Gan, et al.  with substantial interest. We want to congratulate the authors for trying to solve one of the central debates on the surgical technique of laparoscopic gastric bypass (LGBP) for the treatment of obesity. Although there are high-quality studies, to date, it has not been possible to obtain a solid conclusion regarding the optimal length of the alimentary limb .
If we analyze the contemporary scientific evidence, we can only count on four randomized trials to date.
The first study published on the length of the alimentary limb was in 1992, during the era of open gastric bypass . It was a long-term randomized prospective study. Two groups were studied, one with alimentary limb length of 150 cm (n = 23) and another group with an alimentary limb of 75 cm (n = 22). The follow-up was 43 ± 17 months. Weight loss was significantly higher at 24 and 36 months of follow-up in the “long” alimentary limb group compared to the...
laparoscopic gastric bypass
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This article does not contain any studies with human participants or animals performed by any of the authors.