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Disordered eating and weight loss after bariatric surgery

  • Raffaella Gradaschi
  • Virginia Molinari
  • Samir Giuseppe Sukkar
  • Paola De Negri
  • Gian Franco AdamiEmail author
  • Giovanni Camerini
Original Article
  • 19 Downloads

Abstract

Purposes

Aberrant eating patterns are frequently observed in bariatric patients. Since bariatric operations produce alterations in food transit and in appetite/satiety balance, postoperative eating behavior changes are not surprising.

Methods

88 consecutive obese patients undergoing Roux-en-Y gastric bypass (RYGBP, 50 cases) and Sleeve Gastrectomy (SG, 38 cases) were retrospectively evaluated. Beside anthropometric data measurement, eating behavior was assessed by direct interview prior to the operation and at the first and second postoperative years: patients were considered as eating disordered (ED) when referred habitual occurrence of binge eating and nibbling/grazing. Weight loss was assessed by percent of BMI loss (% Δ BMI). Together with standard follow-up, patients received additional behavioral/dietetic support upon request.

Results

Postoperative ED patients showed lower % Δ BMI than the not ED ones at one (30.7% ± 8,5 vs. 26.8% ± 10, p < 0.02) and two (32% ± 10.3 vs. 27.4% ± 12.9, p < 0.05) years after operation, the follow-up rate being 82% and 76%, respectively, without differences between RYGBP and SG group. After RYGBP, an improvement of eating behavior was observed (ED patients from 75 to 28% at 1 year and to 27% at 2 years), while no changes were observed after SG. In SG patients, the number of additional behavioral/dietetic support sessions throughout the follow-up was positively associated with % Δ BMI.

Discussion

The postoperative normalization of eating pattern has a role in weight loss after bariatric surgery. Behavioral/dietetic support is indicated in all SG patient, while after RYGBP is useful only when weight loss is unsatisfactory.

Level of evidence

III: retrospective cohort study.

Keywords

Obesity Bariatric surgery Eating behavior Roux-en-Y gastric bypass Sleeve gastrectomy 

Notes

Compliance with ethical standards

Conflict of interest

On behalf of all authors, the corresponding author states that there is no conflict of interest.

Ethical approval

This is retrospective clinical studies. All procedures performed were in accordance with the ethical standards of University of Genova, Ospedale Policlinico San Martino, Genova Italy, and with the 1964 Helsinki Declaration and its later amendments or comparable ethical standards.

Informed consent

All patients signed the informed consent for the operation and for the anonymous data processing.

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Copyright information

© Springer Nature Switzerland AG 2019

Authors and Affiliations

  • Raffaella Gradaschi
    • 1
  • Virginia Molinari
    • 1
  • Samir Giuseppe Sukkar
    • 1
  • Paola De Negri
    • 1
  • Gian Franco Adami
    • 2
    Email author
  • Giovanni Camerini
    • 3
  1. 1.Nutritional Unit, Ospedale Policlinico San MartinoUniversity of GenovaGenovaItaly
  2. 2.Department of Internal MedicineUniversity of GenovaGenovaItaly
  3. 3.Department of SurgeryUniversity of GenovaGenovaItaly

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