Journal of Cytology
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ORIGINAL ARTICLE
Year : 2020  |  Volume : 37  |  Issue : 1  |  Page : 30-33

Decoy cells versus plasma real-time polymerase chain reaction for the detection of polyomaviruses in renal transplant patients: A single institutional experience


1 Department of Allied Health Sciences, Sultan Qaboos University Hospital, Muscat, Oman
2 Department of Pathology, Sultan Qaboos University Hospital, Muscat, Oman

Correspondence Address:
Dr. Nasar Y Alwahaibi
Department of Allied Health Sciences, College of Medicine and Health Sciences, Sultan Qaboos University, P.O. Box 35 Postal Code 123, Muscat
Oman
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/JOC.JOC_167_18

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Background and Aims: Microscopic detection of decoy cells is routinely performed in urine samples from renal transplant patients for the evaluation of polyomaviruses. However, they are scanty papers evaluated the diagnostic accuracy of decoy cells in urine samples. The aim of this study is to evaluate the diagnostic accuracy of decoy cells in urine samples and compare with plasma real-time polymerase chain reaction (RT-PCR) as a gold standard method. In addition, to compare the findings of this study with other similar studies. Methods: A retrospective study over a period of four years from January 2014 to December 2017 was performed. A total of 89 urine samples from renal transplant patients were assessed for the presence of polyomaviruses and compared with plasma RT-PCR. The sensitivity, specificity, accuracy, positive predictive value (PPV) and negative predictive value (NPV) were measured. Results: There were 29 males and 18 females. The mean patient age was 40.3 years. The sensitivity, specificity, accuracy, PPV and NPV were 86.6%, 67.5%, 70.7%, 35.1% and 96.1%, respectively. Other similar studies reported a sensitivity of 41.9-84.6%, specificity of 65.8-100% and accuracy of 69.9-82%. Conclusion: The findings of this study show that the detection of decoy cells in urine samples is a sensitive screening method for polyomaviruses. The findings of this study are compatible with other similar studies.


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