How can I lose weight 16 years after gastric bypass?

I would recommend conversion to duodenal switch. this is really the only reliable option for weight regain after gastric bypass. revising the anastomosis and/or pouch does not typically work very well and has risk. Lengthening the bypass doesn't always yield much weight loss and can also cause malnutrition even if you don't lose that much weight. I have converted several gastric bypasses (even open gastric bypass) to DS using a laparoscopic technique. Not many surgeons offer this but it is the best thing for weight regain after bypass. The risk is acceptable. If you had an open bypass a laparoscopic conversion will seem much easier in terms of recovery.

HelloIt is  your choice to do the surgery again, allways reminding its is a tool you have to loss weigt and accompanied with a good diet and a continuos follow up  of your doctor .In my opinion you could go to surgery again but firts you should talk whit you doctor about what things you thinks did not help you when you get the cirgury done 16 years ago.BlessingsDr. Pablo