Abstract: Objective To explore the effects of preoperative fasting time on postoperative blood glucose level in primary liver cancer （PLC） patients under continuous operation. Methods A total of 96 PLC patients were divided into two groups；those receiving continuous operation（continuous group，n=40） and those receiving the first operation（the first group，n=56）.Fasting blood glucose levels were compared before the operation and on days 1，3，5 and 7 afterwards. Results Preoperative fasting time was longer in the continu-ous group than in the first group（P<0.01）.Fasting blood glucose levels on days 3，5，and 7 was higher in the continuous group than in the first group（P＜0.01）. Conclusions Extended preoperative fasting time may contribute to postoperative hyperglycemia in PLC patients.Greater attention should be paid to providing individualized preoperative dietary guidance to patients under continuous operation to reduce the occurrence of postoperative stress hyperglycemia.

Key words: Liver neoplasms, Continuous operation, Hyperglycemia, Nursing