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Technical aspects and performance in collecting peripheral blood progenitor cells
Annals of Hematology
|November 26, 1998
Summary
Advancements in apheresis systems and mobilization protocols are enhancing peripheral blood progenitor cell (PBPC) transplantation. Automation and closed systems improve efficiency and safety for PBPC collection in various patient populations.
Area of Science:
- Hematology
- Transplantation Medicine
- Biomedical Engineering
Background:
- Peripheral blood progenitor cell (PBPC) transplantation has grown due to improved mobilization and apheresis techniques.
- Current trends favor automated, closed systems for efficient and safe PBPC collection, adhering to Good Manufacturing Practice (GMP).
- Increasing pediatric needs drive demand for apheresis systems with low flow rates and minimal extracorporeal volume.
Purpose of the Study:
- To review the evolving specifications and technical considerations for apheresis systems in PBPC collection.
- To highlight strategies for enhancing PBPC yield and minimizing undesired cell collection.
- To discuss challenges and future directions in apheresis technology for transplantation.
Main Methods:
- Review of current literature and technological advancements in apheresis systems for PBPC harvesting.
- Analysis of specifications for automated and closed-system apheresis procedures.
- Examination of strategies for optimizing PBPC yield, such as large-volume leukapheresis.
- Discussion of common complications like catheter occlusion and preventative measures.
Main Results:
- Automated, closed apheresis systems reduce operator interaction and collection of unwanted cells (e.g., polymorphonuclear cells, platelets).
- Low flow rate and low extracorporeal volume are critical for pediatric apheresis procedures.
- Large-volume leukapheresis can significantly increase PBPC yield.
- Catheter occlusion remains a primary complication, necessitating measures to prevent thrombosis and maintain vascular access.
Conclusions:
- Continuous refinement of apheresis techniques and systems is crucial for advancing PBPC transplantation.
- Technological improvements enhance efficiency, safety, and yield in PBPC collection for both malignant and nonmalignant conditions.
- Future developments in apheresis will likely lead to novel strategies for cell collection and transplantation.