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A new autotransfusion device effectively prepares platelet-rich plasma (PRP), showing improved efficiency with larger processing bowls. This method minimizes cell damage and preserves platelet function for potential clinical use.

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Area of Science:

  • Biomedical Engineering
  • Hematology
  • Transfusion Medicine

Background:

  • Autologous platelet-rich plasma (PRP) is utilized for preventing platelet (PLT) lesions during extracorporeal circulation and for wound therapy.
  • PRP processing into platelet gel is a key application.
  • Evaluating new technologies for PRP preparation is crucial for clinical efficacy.

Purpose of the Study:

  • To assess the platelet sequestration capabilities of a novel, next-generation autotransfusion device.
  • To determine the impact of different processing bowl sizes on PRP preparation efficiency.
  • To evaluate the quality and functionality of prepared platelets.

Main Methods:

  • An experimental study using fresh donor blood and the XTRA autotransfusion device.
  • Processing blood in four different bowl sizes (X55, X125, X175, X225 mL) with a dedicated 'PLT sequestration program'.
  • Assessing PLT functionality via aggregometry, activation markers (β-TG, soluble P-selectin), morphology, hypotonic shock response, and storage lesion analysis after 6 hours.

Main Results:

  • Platelet recovery in PRP ranged from 39% to 64%, achieving an average 6.2-fold PLT enrichment.
  • The preparation process resulted in minimal cell damage and only a 10% decrease in PLT function, with slight activation observed.
  • Preparation efficiency, measured by PLT recovery rate, increased linearly with larger bowl sizes.

Conclusions:

  • The XTRA autotransfusion device is capable of high-quality perioperative PRP preparation.
  • The size of the processing bowl significantly influences the efficiency of PRP preparation.
  • The findings support the potential clinical utility of this device for perioperative PRP generation.