title: In vitro lysis and acute transfusion reactions with hemolysis caused by inappropriate storage of canine red blood cell products.
abstract: BACKGROUND
  Transfusion of red blood cell (RBC) products carries considerable risk for adverse reactions, including life-threatening hemolytic reactions.
  
  
  OBJECTIVE
  To report the occurrence and investigation of life-threatening acute transfusion reactions with hemolysis in dogs likely related to inappropriate blood product storage.
  
  
  METHODS
  Four dogs with acute transfusion reactions and other recipients of blood products.
  
  
  METHODS
  Medical records were reviewed from 4 dogs with suspected acute hemolytic transfusion reactions after receiving RBC products at a veterinary clinic over a 1-month period. Medical records of other animals receiving blood products in the same time period also were reviewed. Blood compatibility and product quality were assessed, subsequent transfusions were closely monitored, and products were diligently audited.
  
  
  RESULTS
  During or immediately after RBC product transfusion, 4 dogs developed hemolysis, hemoglobinuria, or both. Two dogs died and 1 was euthanized because of progressive clinical signs compatible with an acute hemolytic transfusion reaction. Blood type and blood compatibility were confirmed. RBC units from 2 blood banks were found to be hemolyzed after storage in the clinic's refrigerator; no bacterial contamination was identified. After obtaining a new refrigerator dedicated to blood product storage, the problem of hemolyzed units and acute transfusion reactions with hemolysis completely resolved.
  
  
  CONCLUSIONS
  Acute life-threatening transfusion reactions can be caused by inappropriate storage of RBC products. In addition to infectious disease screening and ensuring blood-type compatibility, quality assessment of blood products, appropriate collection, processing, and storage techniques as well as recipient monitoring are critical to provide safe, effective transfusions.
authors: Animal Specialty Center, Yonkers, NY, USA.
authors: J
authors: J
authors: Patterson
authors: A
authors: A
authors: Rousseau
authors: R J
authors: RJ
authors: Kessler
authors: U
authors: U
authors: Giger
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