title: Storage of leukocyte-poor red cell concentrates: filtration in a closed system using a sterile connection device.
abstract: Storage of leukocyte-poor red cell concentrates (LP-RCC) was investigated after filtration in a closed system that was assembled using a Sterile Connection Device (SCD). The LP-RCC were stored for up to 6 weeks following filtration with either 0.9% saline solution (n = 14) or saline-adenine-glucose-mannitol (SAG M) solution (n = 15) to prime and rinse the cellulose acetate filter. The results were compared with the data of nonfiltered buffy-coat-poor red cell concentrates (BC-poor RCC) stored in SAG M solution (n = 10). All LP-RCC contained less than 10(6) leukocytes whereas the nonfiltered BC-poor RCC contained 675 +/- 286 X 10(6) leukocytes at day 1, decreasing to 83 +/- 49 x 10(6) at day 42. Although glucose consumption, lactic acid production and decrease in pH was similar from day 7 through 28 in both groups of LP-RCC, a significantly steeper decline of ATP values as well as a higher hemolysis and LDH release was observed in the LP-RCC filtered with saline. During storage of the nonfiltered BC-poor RCC in SAG M, significantly higher glucose consumption (p less than 0.01), LDH release (p less than 0.001), rate of hemolysis (p less than 0.001) and a lower pH (p less than 0.001) were found, compared to the filtered units. It is postulated that the leukocytes present in the nonfiltered BC-poor RCC were responsible for these differences. The ATP values in the SAG-M-filtered and nonfiltered BC-poor RCC in SAG M were comparable.(ABSTRACT TRUNCATED AT 250 WORDS)
authors.affiliation: Red Cross Bloodbank Amsterdam, The Netherlands.
authors.forename: R N
authors.initials: RN
authors.lastname: Pietersz
authors.forename: H W
authors.initials: HW
authors.lastname: Reesink
authors.forename: D
authors.initials: D
authors.lastname: de Korte
authors.forename: W J
authors.initials: WJ
authors.lastname: Dekker
authors.forename: A
authors.initials: A
authors.lastname: van den Ende
authors.forename: J A
authors.initials: JA
authors.lastname: Loos
mesh_terms: D000225:Adenine / Q000494:pharmacology; D001793:Blood Preservation / Q000295:instrumentation / Q000379:methods*; D002469:Cell Separation / Q000295:instrumentation / Q000379:methods*; D004912:Erythrocytes; D005374:Filtration / Q000379:methods; D005947:Glucose / Q000494:pharmacology; D006801:Humans; D007962:Leukocytes; D008353:Mannitol / Q000494:pharmacology; D012965:Sodium Chloride / Q000494:pharmacology; D013997:Time Factors
chemical_list: C037839:ADSOL; D008353:Mannitol; D012965:Sodium Chloride; D005947:Glucose; D000225:Adenine