In this study,changes in immunity were observed in 120 patients undergoing laparoscopiccholecystectomy. It was found that postoperative levels of IgG,IgM,CD3+,CD4+,and CD8+ were significantly higher than that of preoperative and postpneumoperitoneal with CO2 (P

Objective To study the optimal laparoscopic procedure and its indication for remove of common bile duct stone. Methods Analysis was made on the clmical data of 124 cases of laparoscopic choledocholithotomy and T tube drainage in our center.Results 82 patients underwent the improved laparoscopic procedure, alternation to open operation in 4 cases (4.9%),and the mean operating time was (80?30) min. While 42 patients were operated with traditional laparoscopic method,changing to open operation in 6 cases (14.3%),and the mean operating time was (170?40) min . The improved method could shorten the operation time and reduce the open operation rate significantly than traditional method did (P