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Updated: Jun 2, 2026
Roux-en-Y Gastric Bypass Operation in Rats
Published on: June 11, 2012
[Long-term efficacy and safety of Roux-en-Y gastric bypass and gastric banding: systematic review]
R Camberos-Solis1, A Jiménez-Cruz, M Bacardí-Gascón
1Hospital Regional número 110, Instituto Mexicano del Seguro Social, Guadalajara, México.
Background:
Bariatric surgery has increased substantially in the last years. However, there are controversies of the long-term efficacy and safety.
Objective:
To evaluate the long-term efficacy and safety of Roux-en-Y gastric bypass (BGRY) and gastric banding (Band) in randomized controlled trials and cohort studies.
Methods:
We searched for randomized controlled trials and cohort studies of BGRY and Band, with a follow-up > 48 months, with description of weight loss, complications and mortality.
Results:
Four randomized trials and one cohort study met the inclusion criteria. Mean weight loss was greater with BGRY (27%-39%) than with Band (13%-35%). In both procedures the complication rate is high. Second operation rate is higher with Band.
Conclusions:
The outcomes observed from this revision are not sufficient to generalize the efficacy and safety of bariatric surgery to population attended at different health care systems.
