| Autor: |
Rahul Garg, Krithiga Ramachandran, S. Jayashree, Reshu Agarwal, Ekta Gupta |
| Jazyk: |
angličtina |
| Rok vydání: |
2022 |
| Předmět: |
|
| Zdroj: |
Journal of Clinical Virology Plus, Vol 2, Iss 4, Pp 100111- (2022) |
| Druh dokumentu: |
article |
| ISSN: |
2667-0380 |
| DOI: |
10.1016/j.jcvp.2022.100111 |
| Popis: |
We evaluated the diagnostic performance of dried blood spots (DBS) compared to plasma for detection and quantification of HBV-DNA under real-life conditions. Blood specimens from 100 known cases of chronic hepatitis B (CHB) requested for quantitative HBV-DNA were included. In a subset of 20 patients, three sets of DBS cards were prepared, one kept at -80°C, the other two kept at room temperature for 7 and 14 days, respectively. DBS method demonstrated sensitivity, specificity, and positive predictive value of 95.3%, 100%, and 100%, respectively in comparison to plasma. The mean HBV-DNA load in plasma was 4.8 log10 IU/ml while in DBS was 4.3 log10 IU/ml with a strong correlation (R2=0.9087). No significant change in viral load was observed at room temperature for up to 14 days. This study suggests that DBS for HBV viral-load quantitation is a good alternative to plasma as it is stable during storage at room temperature and therefore allows easy handling, storage, and transport of specimens in resource-limited settings. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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