Document Detail


Posttransfusion 24-hour recovery and subsequent survival of allogeneic red blood cells in the bloodstream of newborn infants.
MedLine Citation:
PMID:  15157254     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
BACKGROUND: The feasibility, efficacy, and safety of transfusing stored allogeneic RBCs has been demonstrated for small-volume transfusions given to infants. We measured the posttransfusion recovery and intravascular survival of allogeneic RBCs stored up to 42 days to further elucidate their efficacy.
STUDY DESIGN AND METHODS: Preterm infants were transfused with 1.0 mL of biotinylated RBCs plus 15 mL per kg of unlabeled allogeneic RBCs. Posttransfusion infant blood samples obtained at 10 minutes, and at 1, 2, 4, 7, 10, 14, and 21 days were used to determine the 24-hour posttransfusion recovery (PTR(24)), mean potential life span (MPL), and time to disappearance of 50 percent of biotinylated RBCs (T(50)).
RESULTS: No significant differences were found between allogeneic RBCs stored 1 to 21 days versus 22 to 42 days for PTR(24), MPL, or T(50), indicating comparable posttransfusion circulation, regardless of storage age. Although MPL and T(50) values in infants using biotinylated RBCs were short, compared to those expected using chromium-labeled RBCs in adults, they agreed with results reported by others using biotinylated RBCs.
CONCLUSIONS: Satisfactory posttransfusion RBC recovery and survival, measured with biotinylated RBCs, support earlier clinical trials that established the efficacy and safety of stored allogeneic RBCs for small-volume transfusions given to infants. The relatively short MPL and T(50) values in some infants may underestimate true survival due to ongoing erythropoiesis and infant growth with commensurate increase in blood volume during the time of RBC survival studies. Because values in infants differ from those expected using chromium-labeled RBCs in adults, and the number of posttransfusion determinations was few, additional studies are needed to define the mechanisms involved.
Authors:
Ronald G Strauss; Donald M Mock; John A Widness; Karen Johnson; Gretchen Cress; Robert L Schmidt
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Publication Detail:
Type:  Clinical Trial; Journal Article; Randomized Controlled Trial; Research Support, U.S. Gov't, P.H.S.    
Journal Detail:
Title:  Transfusion     Volume:  44     ISSN:  0041-1132     ISO Abbreviation:  Transfusion     Publication Date:  2004 Jun 
Date Detail:
Created Date:  2004-05-25     Completed Date:  2004-07-02     Revised Date:  2014-09-08    
Medline Journal Info:
Nlm Unique ID:  0417360     Medline TA:  Transfusion     Country:  United States    
Other Details:
Languages:  eng     Pagination:  871-6     Citation Subset:  IM    
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MeSH Terms
Descriptor/Qualifier:
Adult
Biotinylation
Blood Donors
Blood Preservation
Cell Survival
Erythrocyte Transfusion*
Feasibility Studies
Humans
Infant, Newborn
Infant, Premature / blood*
Parents
Safety
Time Factors
Grant Support
ID/Acronym/Agency:
P01 HL046925/HL/NHLBI NIH HHS; P01 HL046925-11/HL/NHLBI NIH HHS; P01-HL46925/HL/NHLBI NIH HHS; RR00059/RR/NCRR NIH HHS
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