Our previous prospective randomized clinical trial suggested that the postoperative morbidities were reduced by tight glycemic control of a normal level for blood glucose using artificial pancreas. However, the most feared one is hypoglycaemia, which, when severe and prolonged, may cause convulsions, coma and brain damage, as well as cardiac arrhythmias. Recently, Ven den Berghe G report that the development of accurate, continuous blood glucose monitoring devices, and preferably closed-loop systems for computer-assisted blood glucose control in the ICU, will help to avoid hypoglycaemia. In our study, no hypoglycemia showed in more than 100 patients who performed perioperative tight glycemic control by artificial pancreas.