Hi, thanks for using healthcare magic The procedures regarding the use of the insulin pump before and during surgery can vary between institutions. For minor surgeries it is usually continued though in some major surgeries it is discontinued during the procedure and restarted in the post op period. Normally in the case of an elective surgery such as yours the surgeon would speak to your endocrinologist to set up a plan for the surgery. You may want to speak to your doctors to find out what is the proposed plan. Surgery can raise blood sugar levels because of the body s stress response but your doctors will be able to address any increase. I hope this helps