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Updated: Dec 6, 2025

Roux-en-Y Gastric Bypass Operation in Rats
Published on: June 11, 2012
Additional Metabolic Effects of Bariatric Surgery in Patients with a Poor Mid-Term Weight Loss Response: A 5-Year
David Benaiges1,2,3,4, Maria Bisbe1, Juan Pedro-Botet1,2,3
1Departament de Medicina, Universitat Autònoma de Barcelona, 08139 Barcelona, Spain.
Abstract:
To ascertain the 5-year metabolic effects of bariatric surgery in poor weight loss (WL) responders and establish associated factors.
Methods:
Retrospective analysis of a non-randomised prospective cohort of bariatric surgery patients completing a 5-year follow-up. Mid-term poor WL was considered when 5-year excess weight loss was <50%.
Results:
Forty-three (20.3%) of the 212 included patients were mid-term poor WL responders. They showed an improvement in all metabolic markers at 2 years, except for total cholesterol. This improvement with respect to baseline was maintained at 5 years for plasma glucose, HbA1c, HOMA, HDL and diastolic blood pressure; however, LDL cholesterol, triglycerides and systolic blood pressure were similar to presurgical values. Comorbidity remission rates were comparable to those obtained in the good WL group except for hypercholesterolaemia (45.8% vs. poor WL, p = 0.005). On multivariate analysis, lower baseline HDL cholesterol levels, advanced age and lower preoperative weight loss were independently associated with poor mid-term WL.
Conclusions:
Although that 1 in 5 patients presented suboptimal WL 5 years after bariatric surgery, other important metabolic benefits were maintained.
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