Objective: To investigate the different influences on body stress reactive of minimally invasive and laparotomy operation, and the effect of Chinese medicine Da Cheng Qi granule on the stress.

• 目的：了解腹腔镜与开腹手术两种术式各自对机体应激反应的影响情况及特点，以及中药对应激反应的影响作用。