Robotic Gastric Bypass Revision

Conveniently located to serve the areas of Houston and Katy

Have You Regained Weight After Gastric Bypass?

Even though recent advances in bariatrics have displaced some demand for gastric bypass, it is still one of the most effective weight-loss surgeries available today, but it is not immune to failure.  Patients can experience a failure rate as high as 40% with the well-known Roux-en-Y gastric bypass (RYGB) technique. Poor weight loss often leads patients to request a revision procedure. The most common indication for reoperation after RYGB is inadequate weight loss. At Texas Endosurgery, Dr. Bonnor offers robotic revision of a gastric bypass. Contact our office to learn more. Call Texas Endosurgery at (281) 579-5638.

Reasons for Gastric Bypass Revisional Surgery

  • Insufficient weight loss
  • Weight regain
  • Medical complications
  • Acid reflux
  • Ulcers

Robotic Assistance  

Texas Endosurgery offers a range of robotic surgeries. In robotically-assisted gastric bypass revision, Dr. Bonnor leverages a state-of-the-art mechanical platform to increase visibility and manual dexterity.[1] A robotic platform can be a useful platform for cases requiring revisional work.[2]   In the early recovery phase, patients experience improved recovery with revision cases compared to laparoscopic surgery.  


Ideal candidates for robotic revision of gastric bypass have undergone gastric bypass surgery before, but the procedure has failed to produce the desired results. Some patients experience complications like acid reflux. 

What Is Candy Cane Syndrome?

Candy cane syndrome is a rare complication reported in bariatric patients following Roux-en-Y gastric bypass. It occurs when food particles get lodged along the modified gastrointestinal tract causing abdominal pain, nausea and vomiting. But its symptoms are non-specific, meaning that candy can syndrome can be difficult to diagnose. Consult your doctor if you experience any unexpected pain or discomfort following your gastric bypass surgery.  

Personal Consultation

Dr. R.M. Bonnor is a  leading expert in bariatric surgery.  At your initial appointment, Dr. Bonnor will review your medical history and determine your eligibility for  gastric bypass revision. Contact us to schedule your informative consultation. Call our offices at (281) 579-5638.   

Preparation & Procedure

At Texas Endosurgery, Dr. Bonnor performs robotically assisted gastric bypass revision surgery to ensure his patients’ safety and improve their results.[3] A variety of revision options are available depending on the preoperative upper endoscopy and upper GI results. This may include but not limited to revising the size of the gastric pouch, revising the anastomosis and pouch and repairing a hiatal hernia. Infrequently but also an option is converting a proximal (conventional) Roux-en-Y gastric bypass to a distal Roux-en-Y gastric bypass. By shrinking the stomach and modifying the intestinal tract, a gastric bypass will reduce the amount of food the patient can consume and limit the calories they are able to absorb from that food.  Robotically assisted revision of a gastric bypass patients can expect an at-home recovery that is very similar in duration to their original bypass surgery.[4] 

Frequently Asked Questions (FAQ)

What happens if I regain weight after gastric bypass surgery?

In appropriate candidates, a robotic revision of a gastric bypass uses a sophisticated mechanical platform to safely and effectively revise gastric bypass.  

Is acid reflux a reason to revise a gastric bypass?

Although gastric bypass is very effective for treating acid reflux even in morbidly obese patient, patients may require a re operation or revison. Some patients may present years after the original operation with symptoms of acid reflux related to a hiatal hernia or even dilated gastric pouch. Both of these instances may be addressed with revisonal re-operations.


  1. Wilson, E. B., & Sudan, R. (2013). The Evolution of Robotic Bariatric Surgery. World Journal of Surgery, 37(12), 2756–2760. 
  2. Khan, K., Rodriguez, R., Saeed, S., Persaud, A., & Ahmed, L. (2018). A Case series of candy cane limb syndrome after laparoscopic Roux-en-Y gastric bypass. Journal of Surgical Case Reports, 2018(10). 
  3. ‌Beckmann, J., Mehdorn, A.-S., Kersebaum, J.-N., von Schönfels, W., Taivankhuu, T., Laudes, M., Egberts, J.-H., & Becker, T. (2020). Pros and Cons of Robotic Revisional Bariatric Surgery. Visceral Medicine, 36(3), 238–245. 
  4. Snyder, B., Wilson, T., Woodruff, V., & Wilson, E. (2013). Robotically Assisted Revision of Bariatric Surgeries Is Safe and Effective to Achieve Further Weight Loss. World Journal of Surgery, 37(11), 2569–2573.