EVALUATION OF THE EFFECTIVENESS OF PERIPHERAL BLOOD STEM CELL PROCESSING AND CRYOPRESERVATION AT CHO RAY HOSPITAL
Main Article Content
Abstract
Objective: To evaluate the effectiveness of the processing and cryopreservation procedure for peripheral blood stem cells (PBSCs) at Cho Ray Hospital during 2024–2025.
Methods: A retrospective cross-sectional descriptive study was conducted on 35 PBSC units collected, processed, cryopreserved, and used for hematopoietic stem cell transplantation at Cho Ray Hospital from January 2024 to December 2025.
Main findings: The mean processing-to-storage time was 3.3 ± 0.47 hours; the mean storage bag volume was 125.4 ± 13.54 mL; the mean cell concentration was 2.0 ± 0.9 × 10⁸ cells/mL; and the median storage duration was 44 days. After thawing, both the absolute number of viable CD34⁺ cells and the percentage of viable CD34⁺ cells decreased significantly compared with pre-storage values (p < 0.001). The median recovery rate of viable CD34⁺ cells was 84.89% (IQR: 17.38%), while the median preservation rate of viable CD34⁺ cells was 97.92% (IQR: 4.63%). No processing-related factor showed an independent statistically significant association with the recovery rate of viable CD34⁺ cells after thawing.
Conclusions: The PBSC processing and cryopreservation procedure at Cho Ray Hospital demonstrated good cell preservation efficiency, maintaining high recovery and viability of CD34⁺ cells after thawing.
Keywords
Peripheral blood stem cells, PBSC, CD34⁺, cryopreservation, recovery rate
Article Details
References
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