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Limb Length in Gastric Bypass in Super-Obese Patients—Importance of Length of Total Alimentary Small Bowel Tract

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Abstract

Background

In super-obese patients, rates of weight loss failure and weight regain are high after RYGB. In order to improve weight loss, lengthening of the biliopancreatic limb is vital. In this study, efficacy and safety of two types of RYGB with 2-m BP-limb were assessed in improving weight loss and in the resolution of comorbidities compared with standard RYGB in a long-term follow-up.

Methods

This is a retrospective cohort analysis on 671 super-obese patients operated in a 10-year period. Patients were classified into three groups: (1) 155 patients; roux limb 150 cm, BP-limb 60 cm; (2) 230 patients; roux limb 60 cm, BP-limb 200 cm; and (3) 286 patients; roux limb 150 cm, BP-limb 200 cm. EWL, TWL, BMI, failure, weight regain, comorbidity resolution, nutritional status, and complications were assessed.

Results

Total alimentary limb length was shortened with 60 cm in group 1 and with 200 cm in groups 2 and 3. EWL, BMI change, and TWL were higher in the 2-m BP-limb groups vs group 1. No differences in complication rates were found, except higher frequency of marginal ulcers in patients with a shorter roux limb. EWL failure was higher in group 1 (10.3%) vs the other groups (4.3%; 5.2%). Group 3 had significantly less weight regain (26.6%). Remission of comorbidities was higher in the 2-m BP-limb groups at expense of nutritional and vitamin deficiencies (3.9%; 5.9%). No difference in hypoalbuminemia was noted.

Conclusion

Lengthening of the BP-limb gives significantly higher weight loss, lower rate of EWL failure, and lesser weight regain along with better resolution of obesity-associated comorbidities.

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Authors and Affiliations

  1. Aleris Obesity Clinic and Department of Surgery, Aleris Hospital, Fredrik-Stangsgate 11–13, 0264, Oslo, Norway

    Kamran Shah, Bent Johnny Nergård & Hjörtur Gislason

  2. Oslo Centre for Biostatistics and Epidemiology, Research Support Services, Oslo University Hospital, Oslo, Norway

    Morten Wang Fagerland

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  1. Kamran Shah
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  2. Bent Johnny Nergård
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  3. Morten Wang Fagerland
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  4. Hjörtur Gislason
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Correspondence to Kamran Shah.

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Shah, K., Nergård, B.J., Fagerland, M.W. et al. Limb Length in Gastric Bypass in Super-Obese Patients—Importance of Length of Total Alimentary Small Bowel Tract. OBES SURG 29, 2012–2021 (2019). https://doi.org/10.1007/s11695-019-03836-1

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