BACKGROUND: Extending the length of the Roux limb (RL) in gastric bypass (GBP) may improve weight loss in super obese patients (body mass index [BMI] > 50 kg/m(2)), but no consensus exists about the optimal length of the RL. We sought to determine the impact of RL length on weight loss in super obese patients 1 year after GBP. MATERIALS AND METHODS: One-year weight loss outcomes were analyzed in all super obese patients who underwent consecutive and primary laparoscopic or open GBP between January 2003 and June 2006. Patients were divided into two groups according to RL length (100 vs. 150 cm). The RL length was at the discretion of the attending surgeon. Baseline and follow-up data were collected prospectively. Multiple linear regression was used to adjust for potential confounders in the weight loss outcomes. RESULTS: Twelve-month follow-up data were available in 137 (85%) of 161 patients with a BMI >or= 50 who underwent GBP during the study period. An RL of 100 or 150 cm was used in 102 (74.5%) and 35 patients (25.5%), respectively. In multivariate analysis, patients with the 150-cm RL lost more weight (68.5 vs. 55.3 kg, p < 0.01), had a greater change in BMI (25 vs. 21 kg/m(2), p = 0.01), and had greater excess weight loss (64 vs. 53%, p < 0.01). CONCLUSION: A 150-cm RL provides better weight loss outcomes in super obese patients at 1-year follow-up.
BACKGROUND: Extending the length of the Roux limb (RL) in gastric bypass (GBP) may improve weight loss in super obesepatients (body mass index [BMI] > 50 kg/m(2)), but no consensus exists about the optimal length of the RL. We sought to determine the impact of RL length on weight loss in super obesepatients 1 year after GBP. MATERIALS AND METHODS: One-year weight loss outcomes were analyzed in all super obesepatients who underwent consecutive and primary laparoscopic or open GBP between January 2003 and June 2006. Patients were divided into two groups according to RL length (100 vs. 150 cm). The RL length was at the discretion of the attending surgeon. Baseline and follow-up data were collected prospectively. Multiple linear regression was used to adjust for potential confounders in the weight loss outcomes. RESULTS: Twelve-month follow-up data were available in 137 (85%) of 161 patients with a BMI >or= 50 who underwent GBP during the study period. An RL of 100 or 150 cm was used in 102 (74.5%) and 35 patients (25.5%), respectively. In multivariate analysis, patients with the 150-cm RL lost more weight (68.5 vs. 55.3 kg, p < 0.01), had a greater change in BMI (25 vs. 21 kg/m(2), p = 0.01), and had greater excess weight loss (64 vs. 53%, p < 0.01). CONCLUSION: A 150-cm RL provides better weight loss outcomes in super obesepatients at 1-year follow-up.
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