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Eddy De Schrijver

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Research paper thumbnail of Impact of different hold time before addition of platelet additive solution on the in vitro quality of apheresis platelets

Transfusion

The quality of platelets (PLTs) stored in PLT additive solution (PAS) is dependent on the type an... more The quality of platelets (PLTs) stored in PLT additive solution (PAS) is dependent on the type and proportion of the used PAS. No data are available as to whether a different hold time before the addition of PAS to hyperconcentrated PLT suspensions has an impact on PLT quality. The in vitro quality between single-donor PLT concentrates was compared with two different hold times with two PASs. On two occasions, 6x10(11) PLTs in 150 mL of plasma were collected from 20 blood donors. The units were split into two equal parts, and 140 mL of PAS-II or PAS-IIIM (randomized sequence) was added after 2 or 8 hours resulting in a PAS proportion of 65 percent. On Days 1, 5, and 7, glucose and lactate concentration, pH value, PLTs' P-selectin expression, response to hypotonic shock, and release of transforming growth factor-beta1 were determined. On all days, the lactate concentrations were higher and pH values were lower in units with an 8-hour hold time, whereas the results of in vitro tes...

Research paper thumbnail of Impact of different hold time before addition of platelet additive solution on the in vitro quality of apheresis platelets

Transfusion

The quality of platelets (PLTs) stored in PLT additive solution (PAS) is dependent on the type an... more The quality of platelets (PLTs) stored in PLT additive solution (PAS) is dependent on the type and proportion of the used PAS. No data are available as to whether a different hold time before the addition of PAS to hyperconcentrated PLT suspensions has an impact on PLT quality. The in vitro quality between single-donor PLT concentrates was compared with two different hold times with two PASs. On two occasions, 6x10(11) PLTs in 150 mL of plasma were collected from 20 blood donors. The units were split into two equal parts, and 140 mL of PAS-II or PAS-IIIM (randomized sequence) was added after 2 or 8 hours resulting in a PAS proportion of 65 percent. On Days 1, 5, and 7, glucose and lactate concentration, pH value, PLTs' P-selectin expression, response to hypotonic shock, and release of transforming growth factor-beta1 were determined. On all days, the lactate concentrations were higher and pH values were lower in units with an 8-hour hold time, whereas the results of in vitro tes...

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