Can you tell me about surgery on their pancrease (pancrelipase)?

Depends on reason: Pancreatic procedures are done for a variety of reasons: for malignant indications, for inflammatory indications, for traumatic indications and rarely for benign indications. Traditionally these were done as an open procedure, i.e. Incision. More recently, minimally invasive procedures with laparoscopy or robotic surgery have been introduced. Whatever the approach, the principles are the same.