Surgical Endoscopy

, Volume 28, Issue 4, pp 1056–1062 | Cite as

Baseline glycated hemoglobin levels are associated with duodenal-jejunal bypass liner-induced weight loss in obese patients

  • Rodrigo Muñoz
  • Angelica Dominguez
  • Fernando Muñoz
  • Cesar Muñoz
  • Milenko Slako
  • Dannae Turiel
  • Fernando Pimentel
  • Alan Sharp
  • Alex Escalona



Endoscopic treatment with the duodenal-jejunal bypass liner (DJBL) leads to significant weight loss in obese patients. We sought to identify clinical factors associated with weight loss in obese patients treated with the DJBL for 1 year.


Subjects with morbid obesity were enrolled in a single-arm, open-label, prospective trial and implanted with the DJBL. Patient demographics along with baseline comorbidities, anthropometrics, and biochemical variables were selected for univariate and multivariate analysis.


The DJBL was implanted in 79 subjects and 61 completed 12 months of follow-up. There were 18 early removals. Baseline mean age and body mass index (BMI) were 35.4 ± 9.7 years and 43 ± 5.6 kg/m2, respectively. Forty-four (72 %) were women. This population included 22 subjects with type 2 diabetes (T2DM). Twelve months after treatment, patients had a mean excess body weight loss (%EBWL) of 46 ± 18 %. Univariate analysis identified that fasting glycemia (r 2 = −0.303, p < 0.013), insulin-resistance determined by HOMA-IR (r 2 = −0.457, p < 0.019), and glycated hemoglobin (HbA1c) (r 2 = −0.471, p < 0.013) were associated inversely with %EBWL at 1 year. In this cohort of patients, the multivariate analysis indicated that only baseline HbA1c levels were associated inversely with %EBWL after 1 year of treatment (β adjusted coefficient −0.758, p < 0.016). Importantly, no differences at 1 year in %EBWL were observed between patients with or without T2DM (%EBWL T2D 46.7 ± 20 % vs. non-T2DM 46.8 ± 18.6 %, p = 0.988).


This analysis indicates that higher baseline HbA1c levels are associated independently with diminished body weight loss in obese patients treated with the DJBL independent of their diabetic status. These results show that DJBL induces clinically significant weight loss in both T2DM and non-T2DM patients.


Bariatric Endoscopy Obesity 



GI Dynamics (Lexington, MA) provided funding for this research project.


Dr. Alex Escalona received a consulting fee from GI Dynamics, Inc., and served as a research grant study investigator for GI Dynamics, Inc. Rodrigo Munoz, Angelica Dominguez, Fernando Munoz, Cesar Munoz, Milenko Slako, Dannae Turiel, Fernando Pimentel, and Alan Sharp have no conflicts of interest or financial ties to disclose.


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Copyright information

© Springer Science+Business Media New York 2013

Authors and Affiliations

  • Rodrigo Muñoz
    • 1
  • Angelica Dominguez
    • 2
  • Fernando Muñoz
    • 1
  • Cesar Muñoz
    • 1
  • Milenko Slako
    • 1
  • Dannae Turiel
    • 1
  • Fernando Pimentel
    • 1
  • Alan Sharp
    • 1
  • Alex Escalona
    • 1
  1. 1.Department of Digestive Surgery, School of MedicinePontificia Universidad CatólicaSantiagoChile
  2. 2.Department of Public Health, School of MedicinePontificia Universidad CatólicaSantiagoChile

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