The study was designed to observe the impact of moderate surgical trauma on substrate utilization in 39patients(men,n=1 9;women,n=2 0 ) undergoing elective cholecystectomy. The utilization rate of carbohydrate,fat and protein was estimated on the day before operation and on the1 st,4th and7th post operative day by indirect calorimetry.The result showed that the postoperative utilization rate of carbohydrate was declined,and that of fat elevated significantly when compared with the preoperative values(P0 .0 5 ) .It suggested that the main energy source after moderate surgical trauma be from the oxidation of fat,which might be related to the change of metabolic hormone and the insulin resistance.

Objective To evaluate the effect of Curve-t ype Stapler applied in lower rectal cancer reserving anus. Method The experiences were summarized and analyzed in 31 patients underwent re serving anus from January 2000 to April 2001.In 31 patients were performed end- to-side anastomosis for lower rectum cancer through abdomen.Result There were no complications including hemorrhage, stenosis and postope rative fistula in 31 cases lower rectum cancer end-to-side anastomosis.Conclutions The way of anastomosis is an effective, reliable, co nvenient method which lasts a short time.