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Surg Obes Relat Dis. 2016 Dec;12(10):1856-1863. doi: 10.1016/j.soard.2016.02.013. Epub 2016 Feb 20.

Effectiveness and tolerability of liraglutide in patients with type 2 diabetes mellitus and obesity after bariatric surgery.

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Unit of Endocrinology and Nutrition, Hospital Universitario Fundación Alcorcón Madrid, Spain. Electronic address:
Unit of Endocrinology and Nutrition, Hospital Universitario Fundación Alcorcón Madrid, Spain.



Current guidelines do not offer detailed recommendations on antidiabetic drug therapy in type 2 diabetes (T2D) after bariatric surgery (BS), and reported experience is scarce.


To evaluate the effectiveness and tolerability of liraglutide at 2 years in patients with morbid obesity after undergoing BS and subsequent relapse, persistence, or new diagnosis of T2D, comparing the results with a cohort of nonsurgical diabetic patients also treated with liraglutide.


Obesity clinic at a University Hospital.


We conducted a retrospective study of 2 cohorts of patients (with and without previous BS) with T2D and obesity who had started treatment with liraglutide at least 2 years before their inclusion in the study. The main outcome measures were the differences in glycated hemoglobin (A1C) and weight at 104 weeks between both groups.


A total of 164 patients were included, 15 with previous BS and 149 without BS. Mean baseline parameters were A1C 6.6% and body mass index 40.3 kg/m2 for the BS group, and A1C 7.5% and body mass index 39.7 kg/m2 for the non-BS group. At 2 years, A1C and weight were significantly decreased in both groups (BS group: ΔA1C -0.39%, Δweight -3.4 kg; non-BS group: ΔA1C -0.67%, Δweight -3.8 kg; all results P<.05), with no significant differences in A1C and weight reduction between both groups. There was a significant lower frequency of withdrawals due to all causes and a nonsignificant lower rate of vomiting and hypoglycemia in patients with BS.


Liraglutide achieved a significant reduction in weight and A1C at 2 years in patients with T2D previously treated with BS, showing good gastrointestinal tolerance.


Bariatric surgery; GLP-1 receptor agonists; Liraglutide; Type 2 diabetes

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