Preliminary study on plateletpheresis with the CS-3000 blood cell separator using a single phlebotomy technique

Area of Science:

• Hematology
• Medical Devices
• Transfusion Medicine

Background:

• Plateletpheresis is a common procedure for collecting platelets from donors.
• Donor comfort is a key consideration in blood donation procedures.
• Continuous flow blood cell separators are used for apheresis procedures.

Purpose of the Study:

• To evaluate a novel coaxial dual flow catheter for thrombapheresis.
• To compare donor comfort and platelet yield between single-needle and two-needle procedures.
• To assess the survival of autotransfused platelets following both procedures.

Main Methods:

• Two groups of five donors underwent standard plateletpheresis using a continuous flow blood cell separator.
• Group 1 used a single coaxial dual flow catheter with local anesthesia.
• Group 2 used two standard 14G catheters.

Main Results:

• Donor comfort was significantly improved with the single-needle coaxial catheter.
• Mean platelet yield was substantially lower in the single-needle group (1.28 x 10^10) versus the two-needle group (3.46 x 10^10).
• Platelet survival after autologous transfusion did not differ significantly between the groups.

Conclusions:

• The coaxial dual flow catheter enhances donor comfort during plateletpheresis.
• The reduced efficacy of the single-needle procedure may be attributed to platelet recirculation.
• Further optimization is needed to improve the efficiency of single-needle apheresis systems.