| Bariatric Surgery information Roux Limb Length in Roux-en-Y Gastric Bypass for Super-Obese |
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Does Extended Roux Limb Length in Laparoscopic Roux-en-Y Gastric Bypass
Help Increasing the length of the Roux limb in open Roux-en-Y gastric bypass (RYGB) effectively increases excess weight loss in superobese patients with a body mass index (BMI) >50 kg/m(2). Extending the RYGB limb length for obese patients with a BMI < 50 could produce similar results. The purpose of this study was to compare the outcomes of superobese patients undergoing laparoscopic Roux-en-Y gastric bypass with standard (</=100-cm) with those undergoing the procedure with an extended (150-cm) Roux limb length over 1-year period of follow-up. Method Retrospective data over 2.5 years were reviewed to identify patients with a BMI < 50 who underwent primary laparoscopic RYGB with 1-year follow-up. Forty-five patients (sRYGB group) received limb lengths </= 100 cm, including 45 cm, 50 cm, 60 cm, 65 cm, 70 cm, 75 cm, and 100 cm. Thirteen patients (eRYGB group) received 150-cm limbs. Postoperative weight loss was compared at 3 weeks, 3 months, 6 months, and 1 year. Results Comparing the sRYGB vs the eRYGB group (average +/- SD), respectively: There were no significant differences in age, preoperative weight, BMI, operative time, estimated blood loss or length of stay (median, 3 days). Body weight decreased over time in both groups, except in the sRYGB group between 3 and 6 months and 6 and 12 months after surgery and in the eRYGB group between 6 and 12 months. BMI also decreased over time, except in the eRYGB group between 6 and 12 months. Absolute weight loss leveled out between 6 and 12 months in both groups, with no increase after 6 months. Percent of excess weight loss did not increase in the eRYGB group after 6 months. An extended Roux limb did not significantly affect body weight, BMI, absolute weight loss, or precent of excess weight loss at any time point when the two groups were compared. A trend toward an increased proportion of patients with >50% excess weight loss was observed in the extended Roux limb group. Conclusion In this series, no difference in weight loss outcome variables were observed up to 1 year after laparoscopic Roux-en-Y gastric bypass. Thus, extending Roux limb length from </=100 cm to 150 cm did not significantly improve weight loss outcome in patients with a BMI < 50 kg/m(2). Source: Gastric Bypass Surgery to Reduce Obesity |