Methods 60 cases of aged patients gonging to suffer from cholecystectomy and bile duct stone extraction were divided randomly into EN group and PN group after surgery.

• 方法选择60岁以上行胆囊切除、胆管取石的老年患者60例,术后随机分为EN组及PN组,每组30例,比较术后血糖及胰岛素变化情况及术后并发症以及伤口愈合情况。