RESUMO
OBJECTIVE:To study the anti-infective effect of ceftriaxone in perioperative period METHODS:28 cases of cholelithiasis complicating infections who had to undergo laparoscopic cholecystectomy were enrolled in this study Ceftriaxone,1g,im,was injected 1h～1 5h before anesthesia,and blood and bile were sampled before,during and after operation The concentration of ceftriaxone was determined by UV-spectrophotometry RESULTS:The concentrations of ceftriaxone in blood before,during and after operation were(37 59?16 13)?g/ml,(49 68?10 51)?g/ml and (27 09?12 38)?g/ml respectively The drug concentration in blood peaked 2h after drug administration,at this time,the drug concentration of bile was 4 times that of blood (201 77?20 16)?g/ml CONCLUSION:The drug concentration in blood was 49 times as high as MIC,which indicates that ceftriaxone has preventive and therapeutic effects on possible infections during perioperative period