title: Analysis of transfusion reactions associated with prestorage-pooled platelet components.
abstract: BACKGROUND
  The goal of this study was to assess transfusion reactions arising from prestorage-pooled platelet (PSPP) infusions compared with apheresis single-donor platelets (SDPs) and poststorage-pooled, whole blood-derived random-donor platelets (RDPs).
  
  
  METHODS
  Over a span of 18 months, transfusion reaction records of patients receiving platelet (PLT) infusions were retrospectively reviewed at two academic, tertiary care hospitals. Chi-square analysis was used for statistical comparisons; significance was a p value of less than 0.05.
  
  
  RESULTS
  For the two sites, 10,251 prestorage-leukoreduced PLT products were infused including 4731 PSPPs, 3999 SDPs, and 1521 RDPs. Of the total infusions, 0.91% (93/10,251) were associated with a transfusion reaction. The aggregate transfusion reaction rate was 0.89% (42/4731) for PSPPs, 0.75% (30/3999) for SDPs, and 1.38% (21/1521) for RDPs. There were no significant differences in total reaction rate between PSPPs and the other PLT products (p > 0.05). Allergic transfusion reactions were the most common adverse event for PLT products evaluated (63/10,251; 0.61%) and febrile reactions were second most common (27/10,251; 0.26%). There were 2 suspected cases of sepsis (1 associated with PSPP and 1 associated with RDP; both culture negative) and 1 case of volume overload associated with RDP infusion. There were no significant differences in aggregate allergic or febrile reaction rates among the 93 PLT products evaluated (p > 0.05). No reports of transfusion-related acute lung injury or hemolysis were noted.
  
  
  CONCLUSIONS
  No difference in reactions rates was observed among PSPPs and the other PLT products. The transfusion reactions occurring in this population were not dependent on the type of PLT product infused.
authors.affiliation: Department of Laboratory Medicine, Yale University School of Medicine, New Haven, CT 06520, USA. christopher.tormey@yale.edu
authors.forename: Christopher A
authors.initials: CA
authors.lastname: Tormey
authors.forename: Joseph D
authors.initials: JD
authors.lastname: Sweeney
authors.forename: Melanie H
authors.initials: MH
authors.lastname: Champion
authors.forename: Patricia T
authors.initials: PT
authors.lastname: Pisciotto
authors.forename: Edward L
authors.initials: EL
authors.lastname: Snyder
authors.forename: Yanyun
authors.initials: Y
authors.lastname: Wu
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D001793:Blood Preservation; D002648:Child; D002675:Child, Preschool; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D017713:Platelet Transfusion / Q000009:adverse effects*; D012189:Retrospective Studies