Gastric Bypass Revisions
In reality, most patients don’t need a revision. The most common complaint we see with patients who have gained weight back after gastric bypass surgery is, “my pouch has stretched out”. There may be some patients in which that is true to an extent and we’ll discuss that in a minute. However, most patients have reverted back to poor eating habits. When asked how much chicken and veggies they can eat at one time, the answer is invariably, “I don’t know”. Well, there is your answer!
It falls back to these surgeries are tools to help you deal with your body’s slow metabolism and poor eating habits. Their main function is to help control appetite and portion sizes. We know portion sizes will increase some over time but it’s not usually due to major stretching of the pouch. However, a pouch may have been made too big in the beginning but felt small at first due to swelling and newness of the surgery. After that wears off, then portion sizes get bigger. This set of patients are the minority of the patients we see who may actually be candidates for a revision. They typically had their surgery either many years ago or in an open fashion. Most laparoscopic gastric bypasses are made with small pouches that don’t stretch much over time.
Another potential cause of weight gain after gastric bypass surgery is stretching of the opening between the pouch and small bowel connection (termed anastomosis) over time. This can lead to faster emptying of the pouch which allows you to eat more or be less full with a meal. However, there is only so much we can do surgically to maintain that small opening over time.