关键词: 尿液, 结石, 细菌培养, 经皮肾镜取石术

Abstract: 【Abstract】 Objective To investigate the correlation between preoperative urine and intraoperative stone culture in percutaneous nephrolithotomy （PCNL），and the role of intraoperative stone culture in systemic inflammatory response syndrome（SIRS）. Methods From July 2014 to July 2016，preoperative urine culture and intraoperative stone culture were obtained in 40 patients undergoing in PCNL. The postoperative SIRS events，antibiotics sensitivity and any changes in treatment. Results Of 40 cases， there were 13 cases（32.5%）with preoperative urine culture positive results and 27（67.5%）sterile，26 （65%）with intraoperative stone culture positive results and 14（35%）sterile. The positive rates of stone culture were higher than that of preoperative urine culture（P<0.05）. Sterile both preoperative and stone culture were found in 10 （25%） patients. Sterile stone culture and urine culture positive results were found in 4 （10%） patients. Sterile urine culture and stone culture positive results were found in 17 （42.5%）patients. urine culture and stone culture positive results were found in 9（22.5%）patients. In these cases，there was different types of bacteria. Otherwise SIRS happened in 10 patients. Conclusion Intraoperative stone culture can be more accurate to reflect the bacterial infection than preoperative urine culture.

Key words: calculi, bacterial culture, percutaneous nephrolithotomy, urine