Abstract:
BACKGROUND:A new citrate-acetate-NaCl platelet additive solution, identified as PAS 2, was developed to prepare platelet concentrates (PCs) from pooled 0.5 CPD buffy coats (BCs). STUDY DESIGN AND METHODS:A study was undertaken to evaluate PAS 2 in vitro (n = 8) and in vivo (n = 9) against a commercially available solution (Plasma-Lyte A). In a paired in vitro study, a comparison was made of platelet and white cell concentration; blood gases and bicarbonate; glucose and lactate concentration; total intracellular concentration of adenine nucleotides and beta-thromboglobulin release. RESULTS:A lower platelet yield (p < 0.0001) and a higher beta-thromboglobulin release (p < 0.01) are observed with Plasma-Lyte A. For this reason, half-strength (0.5) CPD was changed to full-strength CPD in the clinical study with Plasma-Lyte A. In a clinical evaluation of nine patients with bone marrow failure, all received PCs with both PAS 2 and Plasma-Lyte A that had a shelf life of at least 4 days. Corrected count increments (CCls) were as follows, on average (95% Cl): the CCl at 1 to 4 hours was 22.4 (95% Cl, 15.2-29.4) for PAS 2 and 24.0 (95% Cl, 16.9-31.2) for Plasma-Lyte A; that at 12 to 24 hours was 11.3 (95% Cl, 4.1-18.4) for PAS 2 and 14.2 (95% Cl, 7.1-21.3) for Plasma-Lyte A; and that at 36 to 48 hours was 4.2 (95% Cl, -3.0-11.3) for PAS 2 and 8.7 (95% Cl, 1.1-16.2) for Plasma-Lyte A. No significant difference between the two solutions was found. CONCLUSIONS:PAS 2 and Plasma-Lyte A make important contributions to platelet transfusion quality improvement and give an excellent CCl even after 4 days of storage.
journal_name
Transfusionjournal_title
Transfusionauthors
van Rhenen DJ,Vermeij H,Kappers-Klunne M,Payrat JMdoi
10.1046/j.1537-2995.1995.35195090662.xsubject
Has Abstractpub_date
1995-01-01 00:00:00pages
50-3issue
1eissn
0041-1132issn
1537-2995journal_volume
35pub_type
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