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Disordered eating and weight loss after bariatric surgery
Raffaella Gradaschi1, Virginia Molinari1, Samir Giuseppe Sukkar1
1Nutritional Unit, Ospedale Policlinico San Martino, University of Genova, Genova, Italy.
Eating and Weight Disorders : EWD
|July 15, 2019
Summary
Postoperative eating disorders negatively impact weight loss after bariatric surgery. Behavioral support is crucial for Sleeve Gastrectomy patients and selectively for Roux-en-Y Gastric Bypass patients to optimize outcomes.
Area of Science:
- Bariatric surgery
- Obesity management
- Eating disorders
Background:
- Bariatric operations alter food transit and appetite regulation.
- Postoperative changes in eating behavior are common in bariatric patients.
Purpose of the Study:
- To evaluate the impact of postoperative eating disorders on weight loss after bariatric surgery.
- To assess the effectiveness of behavioral/dietetic support in managing eating patterns and weight loss.
Main Methods:
- Retrospective evaluation of 88 obese patients undergoing Roux-en-Y gastric bypass (RYGBP) or Sleeve Gastrectomy (SG).
- Assessment of eating behavior (binge eating, nibbling/grazing) and weight loss (% Δ BMI) via interviews preoperatively and at 1 and 2 years post-surgery.
- Analysis of the association between eating disorders, surgical type, and need for additional behavioral/dietetic support.
Main Results:
- Patients with postoperative eating disorders showed significantly lower weight loss (% Δ BMI) at 1 and 2 years compared to those without eating disorders.
- Eating behavior improved in RYGBP patients post-surgery, but not in SG patients.
- In SG patients, increased behavioral/dietetic support sessions correlated positively with greater weight loss.
Conclusions:
- Normalization of postoperative eating patterns plays a significant role in achieving successful weight loss after bariatric surgery.
- Behavioral/dietetic support is recommended for all SG patients.
- Such support is beneficial for RYGBP patients primarily when weight loss is suboptimal.
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