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Table 2 Platelet count and maximum aggregation ability

From: Intraoperative collection of autologous platelet-rich plasma from the cardiopulmonary bypass circuit upon initiation of extracorporeal circulation

Factors Mean SD
Collected platelet-rich plasma (ml) 233.3 43.5
 Buffy (ml) 128.3 34.0
 Plasma (ml) 104.5 18.6
Number of platelets in platelet-rich plasma (×1011) 120.8 69.3
Number of platelets in A blood (×1000/μl) 182.3 31.6
Number of platelets in B blood (× 1000/μl) 63.5 30.5
Number of platelets in C blood (×1000/μl) 93.4 43.1
Maximum aggregation rate in A blood
 1.0 μM ADP (%) 54.7 17.6
 3.0 μM ADP (%) 68.9 13.0
 0.25 μg/ml collagen (%) 40.5 25.3
 2.0 μg/ml collagen (%) 72.7 14.5
Maximum aggregation rate in B blood
 1.0 μM ADP (%) 17.4 5.8
 3.0 μM ADP (%) 25.4 10.8
 0.25 μg/ml collagen (%) 10.5 4.2
 2.0 μg/ml collagen (%) 28.5 16.9
Maximum aggregation rate in C blood
 1.0 μM ADP (%) 21.7 9.5
 3.0 μM ADP (%) 34.1 14.1
 0.25 μg/ml collagen (%) 9.5 2.9
 2.0 μg/ml collagen (%) 38.1 19.6
  1. A: Beginning of surgery (before administration of heparin)
  2. B: After discontinuation of cardiopulmonary bypass and protamine administration
  3. C: After returning autologous platelet-rich plasma