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 BKV-DNA 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.