One-Year Outcomes After Conversion Bariatric Surgery

Obesity is a growing global public health problem, and bariatric surgery is currently the most effective treatment for achieving sustained weight loss and improving obesity-related comorbidities. However, a subset of patients experience inadequate weight loss or weight regain following primary bariatric surgery, which may lead to the recurrence of metabolic complications and reduced quality of life. In such cases, conversion bariatric surgery, defined as the surgical conversion from one bariatric procedure to another, is considered an important therapeutic option. Despite the increasing number of conversion procedures, comprehensive longitudinal data evaluating anthropometric, biochemical, and nutritional outcomes after conversion bariatric surgery remain limited. This study aims to prospectively evaluate individuals undergoing conversion bariatric surgery due to weight regain following primary bariatric surgery. Anthropometric measurements, biochemical parameters, and nutritional status will be assessed preoperatively and at 1 year after surgery. By evaluating weight loss outcomes together with metabolic and nutritional changes, this study seeks to provide clinically relevant evidence to guide postoperative follow-up strategies, optimize nutritional management, and support multidisciplinary care in patients undergoing conversion bariatric surgery.

NCT Number	NCT07345429
Lead Sponsor	Medipol University Collaborators: Mudanya University
Conditions	Obesity & Overweight, Bariatric Surgery, Revisional Bariatric Surgery
Enrollment	14 participants
Start Date	2024-11-12
Primary Completion	2026-01-10 (estimated)
Study Completion	2026-02-21 (estimated)
Updated on ClinicalTrials.gov	2026-02-03