Obesity Surgery

, 17:445 | Cite as

Eating Behavior as a Prognostic Factor for Weight Loss after Gastric Bypass

  • Paulo C. Sallet
  • José A. Sallet
  • John B. Dixon
  • Eliane Collis
  • Carlos E. Pisani
  • Andréa Levy
  • Fábio L. Bonaldi
  • Taki A. Cordás
Article

Background

Binge-eating disorder (BED) may be associated with unsatisfactory weight loss in obese patients submitted to bariatric procedures.This study aims to investigate whether the presence of binge eating before Roux-en-Y gastric bypass (RYGBP) influences weight outcomes.

Methods

In a prospective design, 216 obese patients (37 males, 178 females, BMI––5.9 ±–.0 kg/m2) were assessed for the lifetime prevalence of BED and classified at structured interview into 3 subgroups: no binge eating (NBE––3), sub-threshold binge eating (SBE––29), and binge-eating disorder (BED––4). All patients were encouraged to take part in a multidisciplinary program following surgery, and weight loss at follow-up was used as the outcome variable.

Results

At 1-year follow-up, NBE patients (n––1) showed percent excess BMI loss (%EBL) significantly higher than SBE patients (n––12) (P––.027), although this effect was not significantly different between NBE and BED patients (n––4). At 2-year follow-up, NBE patients (n––3) showed %EBL higher than SBE (n––4) (P––.003) and BED patients (n––4) (P–lt;–.001). Nevertheless, we found no significant weight loss differences between SBE (subclinical) and BED (full criteria) patients at any period of followup. Preliminary results at 3-year follow-up suggest that such an effect may be enduring.

Conclusion

The presence of a history of binge eating prior to treatment is associated with poorer weight loss in obese patients submitted to RYGBP. Because BED is highly prevalent in obese patients seeking bariatric surgery, its early recognition and treatment may be of important clinical value.

Key words

Binge-eating disorder eating behavior morbid obesity bariatric surgery weight loss Roux-en-Y gastric bypass 

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Copyright information

© Springer Science + Business Media B.V. 2007

Authors and Affiliations

  • Paulo C. Sallet
    • 1
    • 2
    • 4
  • José A. Sallet
    • 2
  • John B. Dixon
    • 3
  • Eliane Collis
    • 2
  • Carlos E. Pisani
    • 2
  • Andréa Levy
    • 2
  • Fábio L. Bonaldi
    • 2
  • Taki A. Cordás
    • 1
  1. 1.Department and Institute of Psychiatry, Faculty of MedicineUniversity of São PauloSão PauloBrazil
  2. 2.Sallet ClinicSão PauloBrazil
  3. 3.Centre for Obesity Research and EducationMonash UniversityMelbourneAustralia
  4. 4.Institute of Psychiatry, Faculty of MedicineUniversity of São PauloSão PauloBrazil

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