Redo or corrective bariatric surgery refers to revision procedures performed in patients who have previously undergone weight-loss surgery but experienced inadequate weight loss, significant weight regain, or procedure-related complications. As bariatric surgery alters gastrointestinal anatomy and physiology, revision surgery requires advanced expertise, careful evaluation, and individualized surgical planning.

Patients may require corrective bariatric surgery for several reasons. These include anatomical changes such as dilation of the gastric pouch or sleeve, malfunction or erosion of previous devices, recurrence of obesity-related conditions, or unresolved symptoms affecting quality of life. In some cases, the original procedure may no longer provide sufficient metabolic or restrictive benefit, necessitating revision.

Redo bariatric surgery is more complex than primary bariatric procedures due to altered anatomy, scar tissue, and changes in gastrointestinal physiology. Comprehensive pre-operative evaluation is essential and includes assessment of current anatomy, nutritional status, metabolic profile, and behavioral factors contributing to weight regain or suboptimal outcomes.

The goals of corrective bariatric surgery extend beyond weight reduction. These procedures aim to restore or enhance the restrictive and/or metabolic effects of the original surgery, improve long-term weight stability, and address associated medical conditions. Surgical strategies are selected based on the type of prior procedure, current anatomy, and individual patient factors.

Corrective bariatric surgery is performed using minimally invasive techniques whenever feasible, reducing surgical trauma and supporting faster recovery. Given the increased complexity, these procedures are best performed in specialized bariatric centers with multidisciplinary support, including nutrition, psychology, and metabolic care.

Post-operative management focuses on close monitoring, nutritional optimization, and long-term lifestyle support. Patients undergoing revision surgery benefit from structured follow-up programs designed to maximize outcomes and minimize recurrence of weight regain.

When performed in appropriately selected patients, redo bariatric surgery can significantly improve weight outcomes, metabolic health, and quality of life.