Yes there are limitations to how much you can weight prior to bariatric surgery. The larger you are, the higher the risks. We prefer to have patients with a BMI less than 60 prior to surgery. Studies have shown increase risk with BMI greater than 60. Also our malpractice insurance carrirer will not allow us to operate on patients that can not fit into our CT scan machine which is 440lbs. All surgeons have different policies regarding this so you should consult with your bariatric surgeon.
Web reference: http://www.stopobesityforlife.com