Abstract:
BACKGROUND AND OBJECTIVES:In order to preserve platelet concentrates (PCs) with high yields, a new polyolefin platelet storage container (PL 2410, 1.3L, Baxter, La Châtre, France) with increased gas permeability in combination with a larger surface area has been developed. The storage capacity was studied with platelets in plasma and platelets additive solution. MATERIALS AND METHODS:Platelet concentrate pools (PCs) of different yields suspended in either plasma (PCs-PL; n = 30) or PAS II (PCs-PAS; n = 37) were prepared. For preparation of PCs with a low, intermediate and high number of platelets 3, 5 and 6 buffy coat (BCs) were pooled with different volumes of plasma and 5 and 6 BCs were pooled with different volumes of PAS II, in order to obtain PCs of equal volumes comparable with routine conditions. All PCs were stored on a flatbed shaker at 22+/-2 degrees C and evaluated on days 1, 2, 5 and 7 by determining platelet and white cell counts, pH (37 degrees C), pO2, pCO2 and swirling score. RESULTS:Platelet yields ranged from 1.5 up to 5.5 x 10(11) platelets/U. On day 7 all PCs-PL (n = 4) with platelet yields above 4.5 x 10(11)/U had a pH value below 6.8 (range 5.91-6.79). While 7 of 8 PCs-PAS units with platelet yields above 4. 0 x 10(11)/U showed a pH value below 6.8 (range 6.31-6.70). CONCLUSION:During 7 days of storage in a new 1.3-liter platelet container, the pH was maintained above 6.8 in PCs in plasma with a yield between 1.5- and 4.5 x 10(11)/U; when PAS II was used, the maximum platelet yield allowed for comparable pH maintenance was somewhat lower (4.0 x 10(11)/U).
journal_name
Vox Sangjournal_title
Vox sanguinisauthors
de Wildt-Eggen J,Schrijver JG,Smid WM,Joie M,Bollinne V,Bins Msubject
Has Abstractpub_date
1998-01-01 00:00:00pages
218-23issue
3eissn
0042-9007issn
1423-0410pii
vox75218journal_volume
75pub_type
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