目的 研究肾移植患者BK病毒感染的检测方法,并探讨其临床应用价值.方法 对132例两院同种异体肾移植随访患者,采集其血、尿标本进行BK病毒的检测,包括:尿沉渣decoy细胞、尿液BKV-DNA和血浆BKV-DNA,确定是否存在BK病毒复制.结果 132例肾移植患者中,37例(28.0%)尿decoy细胞阳性,出现decoy细胞阳性的中位时间为术后12个月;BK病毒尿症32例(24.2%),中位时间为术后11个月;BK病毒血症16例(12.1%),中位时间为术后15个月.5例BK病毒血症患者经病理学证实为BK病毒相关性肾病.结论 尿沉渣decoy细胞和体液BKV-DNA检测能早期发现BK病毒感染,为预防肾移植术后BK病毒相关性肾病提供重要的依据.%Objective To study the detection methods of BK virus infection in kidney transplant recipients, and to explore the clinical application. Methods 132 cases of renal transplant recipients were undertaken BK virus detection including presence of decoy cells in urinary sediment, urine and serum BKVDNA to demonstrate the BK virus replication. Result Among 132 cases of renal transplant recipients,urinary decoy cell was found in 37 (28.0%)patients and the median time was 12 months after surgery. 32(24. 2% )patients were diagnosed as BK viruria at a median of 11 months after surgery, and 16( 12. 1% )recipients were diagnosed as BK viremia at a median of 15 months after surgery, 5 patients with BK viruria were diagnosed as BK virus associated nephropathy according to allograft biopsy. Conclusion To make early diagnosis of BK virus infection, detection of urine decoy cells and BKV-DNA in urine and plasma sample is important,which provides an important basis for the prevention of BK virus associated nephropathy.
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