Abstract: Objective To study the realation of elevated fasting plasma glucose levels after operation and postoperative recovery in patients with esophageal and cardiac cancer. Methods From January 1996 to October 2009, 196 cases of surgical treatment in the thoracic surgery II of Peking University School of Oncology were recruited, observing and recording fasting plasma glucose levels before and after operation and postoperative complications . χ2 test was used to analyze the data. Results (1) The patients with elevated fasting glucose levels after operation were significantly more than those before operation ,respectively 115 cases and 38 cases; (2) No significant correlation was found between elevated fasting plasma glucose levels in preoperative patients and postoperative complications; (3) In postoperative patients with elevated fasting glucose levels, the incidence of postoperative severe infection and anastomotic leakage was significantly higher. p values were 0.028 and 0.002. Conclusion he elevated fasting plasma glucose levels in the patients of esophageal and cardiac cancer after operation is not conducive to postoperative recovery .The effective control of postoperative fasting plasma glucose to normal levels may contribute to patients recovery.

Key words: esophageal and cardiac cancer, fasting plasma glucose after operation, postoperative recovery