Binge Eating, Depression and Anxiety Outcomes After Sleeve Gastrectomy Versus Gastric Bypass: A Cohort Study

Summary

The goal of this clinical trial is to learn if the type of weight-loss surgery (sleeve gastrectomy or gastric bypass) affects binge eating, depression, and anxiety in adults with severe obesity. The main questions it aims to answer are: Does sleeve gastrectomy lead to different changes in binge eating compared with gastric bypass? Does the type of surgery lead to different changes in depression and anxiety symptoms? Researchers will compare people who have sleeve gastrectomy with those who have gastric bypass to see if there are differences in binge eating, depression, and anxiety levels up to 12 months after surgery. Participants will: Complete questionnaires about eating habits, mood, anxiety, general health, and body image before surgery. Undergo either a sleeve gastrectomy or a gastric bypass operation (both are standard care). Follow a standard post-surgery diet plan. Attend follow-up visits at 1 week, 2 weeks, 1 month, and then monthly for 12 months, where they will complete the same questionnaires again.

Eligibility

Inclusion Criteria:

* Age between 18 and 60 years
* Body Mass Index (BMI) ≥ 35 kg/m² without comorbidities, OR BMI ≥ 30 kg/m² with at least one obesity-related medical comorbidity (e.g., type 2 diabetes, hypertension, obstructive sleep apnea, dyslipidemia)
* Patient is generally fit for laparoscopic surgery and general anesthesia as determined by preoperative evaluation
* Patient agrees to comply with postoperative lifestyle changes (dietary modifications and follow-up schedule)
* Willing and able to provide written informed consent

Exclusion Criteria:

* Age \< 18 years or \> 60 years
* Inability or unwillingness to adhere to postoperative lifestyle changes
* Contraindication to surgery: American Society of Anesthesiologists (ASA) class IV or higher
* History of receiving radiotherapy or chemotherapy for cancer treatment
* Active substance use disorder or uncontrolled severe psychiatric illness that would impair ability to comply with study procedures (e.g., active psychosis, severe suicidal ideation)
* Pregnant or breastfeeding women (pregnancy test performed preoperatively per institutional protocol)
* Previous bariatric surgery (revisional surgery excluded)
* Untreated thyroid disorder (e.g., hypothyroidism or hyperthyroidism)

Conditions3

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