应用基于ＰＣＲ的ＴＲＡＰ方法检测膀胱癌脱落细胞中端粒酶的活性表达，探讨其在膀胱癌早期诊断及术后随访中的应用价值。材料与方法　已经确诊的３８例膀胱癌患者均留取晨起后第二次尿５０ｍｌ，术前以１００ｍｌ生理盐水冲洗膀胱，留取冲洗液５０ｍｌ，于手术时留取肿瘤标本 The PCR-based TRAP method was used to detect the activity of telomerase activity in exfoliated cells of bladder cancer, and to explore its value in the early diagnosis and postoperative follow-up of bladder cancer. Materials and Methods 38 cases of bladder cancer patients have been diagnosed with a second morning urine 50ml, preoperative 100ml saline flushing the bladder, leaving the wash fluid 50ml, at the time of surgery to take the tumor specimens