I have performed many surgeries on patients with a lap band, and there are several issues. First, it's important to know your fill and also your dietary patterns. If you are having certain foods "stick" or have a fill in the 5cc or more range, I usually advocate emptying or taking the band fill down. My bariatric surgeon colleagues usually agree with me on this. The idea is to prevent band slip in case you get nausea or vomiting from the anesthesia after surgery. Also, you are going to need a bit more protein in your diet after surgery, and your abdominal wall muscles may also be tightened. A tight band can be a real problem in those cases. Accessing the port requires a special needle setup, so be sure your PS is familiar to avoid damage to the port. Finally, I will often re-secure the port to the abdominal wall because your weight loss almost always causes the port to become loose and harder to fill or unfill. Again, my bariatric colleagues are often appreciative of this.