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Fresher blood donations may be better for recipients

Date:
October 31, 2013
Source:
Society of Thoracic Surgeons
Summary:
Although clinical evidence is lacking on the relationship between the storage time of red blood cells and outcomes in transfused patients, these authors are advocating for a modernized blood management system — similar to inventory management systems seen in the retail sector — to potentially reduce patient complications.

Although clinical evidence is lacking on the relationship between the storage time of red blood cells and outcomes in transfused patients, the authors of a review article in the November 2013 issue of The Annals of Thoracic Surgery are advocating for a modernized blood management system—similar to inventory management systems seen in the retail sector—to potentially reduce patient complications.

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Duration of storage is dependent on a number of factors, including the management system, supply and demand, and blood type (less common blood types, such as Type AB negative, tend to be stored longer than more common types, particularly Type O). Currently, the Food and Drug Administration (FDA) limits storage duration to a maximum of 42 days, depending on the storage system.

“Stored blood undergoes changes, meaning that transfusion of older red blood cells may result in the delivery of high concentrations of red blood cell components such as hemoglobin, free iron, and red blood cell fragments,” said Colleen G. Koch, MD, MS, MBA, from the Cleveland Clinic in Ohio. “These components may contribute to adverse clinical events observed in a number of investigations.”

Dr. Koch and colleagues reviewed existing literature to examine the presence of storage-related complications in patients who underwent blood transfusions. They found several studies in trauma and cardiac surgery that linked increased blood storage duration to post-injury multiple organ failure, infection, deep vein thrombosis, and hospital mortality, while other studies reported no apparent relationship between storage duration and clinical outcomes.

Several ongoing randomized controlled trials may answer more questions in the future. Meanwhile, the researchers recommend exploring changes to the current first-in, first-out process. They pointed to new models of inventory management in the retail sector that would reduce inventory shelf time in favor of just-in-time delivery of products.

“We hope our results engage others in the medical community to investigate alternative inventory management strategies that would contribute to reducing the storage age of the red cell product without adversely influencing inventory availability,” said Dr. Koch.

One existing model involves blood platelet donation. Platelets expire 5 days after donation, so managing platelet inventory requires hourly monitoring and more frequent deliveries from blood collection agencies. Using these same techniques for red blood cell donations could help reduce blood storage duration to 14 days or less, according to the researchers.

“We recommend further work with inventory management to explore strategies that would optimize fresher blood for patients,” said Dr. Koch. “Until results of ongoing randomized controlled trials in the area of storage duration are completed, we cannot recommend a change in the current FDA formal guidelines; however, we encourage surgeons to remain aware of the possible complications associated with red blood cell transfusion.”


Story Source:

The above story is based on materials provided by Society of Thoracic Surgeons. Note: Materials may be edited for content and length.


Journal Reference:

  1. Colleen G. Koch, Priscilla I. Figueroa, Liang Li, Joseph F. Sabik, Tomislav Mihaljevic, Eugene H. Blackstone. Red Blood Cell Storage: How Long Is Too Long? The Annals of Thoracic Surgery, 2013; 96 (5): 1894 DOI: 10.1016/j.athoracsur.2013.05.116

Cite This Page:

Society of Thoracic Surgeons. "Fresher blood donations may be better for recipients." ScienceDaily. ScienceDaily, 31 October 2013. <www.sciencedaily.com/releases/2013/10/131031090036.htm>.
Society of Thoracic Surgeons. (2013, October 31). Fresher blood donations may be better for recipients. ScienceDaily. Retrieved March 5, 2015 from www.sciencedaily.com/releases/2013/10/131031090036.htm
Society of Thoracic Surgeons. "Fresher blood donations may be better for recipients." ScienceDaily. www.sciencedaily.com/releases/2013/10/131031090036.htm (accessed March 5, 2015).

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