Objective To investigate the changes of CD11b on neutrophils during myocardial ischemia-reperfusion injury. Methods 12 patients undergoing coronary bypass grafts under CPB were studied. Blood samples were obtained from the coronary (coronary sinus) and systemic circulation (central venous and CPB machine), respectively. Samples obtained from coronary and systemic circulation were taken before the beginning of CPB, during CPB and after cardiac reperfusion. Neutrophil CD11b expression and serum cTnI concentration were measured. Results (1)Expression of CD11b increased gradually in systemic circulation during CPB and after reperfusion (P

AIM: To evaluate the safety and efficacy of oral oxycodone /acetaminophen or tramadol in early postoperative patients undergoing laparoscopic gynecological operations. METHODS: 120 gynecologic patients receiving laparoscopy operation were enrolled in a randomized,double blind, placebo controlled, multi center clinical trial with early oral analgesics if the vasual analgesia scores (VAS) was scored higher than 3.0. All patients were randomly received a single dose of oral analgesic: oxycodone/acetaminophen, tramadol or placebo, respectively. For rescue medication, PCA pump was provided in all three groups with a dose of 1 mg morphine and lockout of 5 minutes. The VAS scores, pain relief, PCA morphine consumption and side effects were evaluated at the following occasions of 0.25 , 0.5 , 0.75 , 1, 2, 4, 6, 8, 12 and 24 h throughout the study. RESULTS: The VAS scores and pain relief were significantly different in three groups at 0.75 , 1, 2, 4, 6, 8 and 12 h. The VAS scores and PCA morphine consumption was significantly lower in oxycodone/acetaminophen and tramadol groups than those in placebo group. Pain relief in oxycodone/acetaminophen and tramadol groups was better than those in placebo group. The incidence of side effects such as nausea and vomiting significantly increased in tramadol group at 24 h compared with those in the other two groups. CONCLUSION: Early oral administration of oxycodone /acetaminophen or tramadol can provide surgical patients with good and safe postoperative analgesia after laparoscopy gynecologic operation. The incidence of side effects in oxycodone /acetaminophen group is lower than that in tramadol group in this clinical trial.