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Blood Transfusion and Agglutination

Blood Transfusion and Agglutination

Blood transfusion is a therapeutic measure to restore the blood volume after extensive blood loss due to an accident or a medical procedure. Blood transfusion involves drawing a certain amount of blood from a suitable donor and infusing it into the recipient.
History
The history of blood transfusion dates back to the 17th century, when early attempts were made in animals. In 1818 James Blundell, a British doctor, performed the first successful human blood transfusion. Later in 1900, Karl...

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Small-Volume Blood Collection Tubes to Reduce Transfusions in Intensive Care: The STRATUS Randomized Clinical Trial.

Deborah M Siegal^1,2,3,4, Emilie P Belley-Côté^1,2,5, Shun Fu Lee^1,5

¹Population Health Research Institute, McMaster University, Hamilton, Ontario, Canada.

|October 12, 2023

Summary

This summary is machine-generated.

Switching to small-volume blood collection tubes in intensive care units (ICUs) may reduce red blood cell (RBC) transfusions without impacting laboratory test accuracy. This change helps mitigate anemia in critically ill patients.

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Area of Science:

Critical Care Medicine
Hematology
Laboratory Science

Background:

Blood collection in intensive care units (ICUs) contributes to anemia and red blood cell (RBC) transfusions.
A significant portion of collected blood is often discarded as it exceeds analytical requirements.

Purpose of the Study:

To evaluate if transitioning to small-volume blood collection tubes in ICUs reduces RBC transfusions.
To assess if this transition compromises laboratory testing procedures.

Main Methods:

A stepped-wedge cluster randomized trial was conducted across 25 adult medical-surgical ICUs in Canada.
ICUs transitioned from standard-volume to small-volume vacuum tubes for blood collection.
Primary outcome was RBC transfusion units per patient per ICU stay; secondary outcomes included transfusion rates, hemoglobin changes, and specimen adequacy.

Main Results:

In the primary analysis (21,201 patients), no significant difference in RBC units per patient per ICU stay was observed (RR, 0.91; P=.19).
A prespecified secondary analysis (27,411 patients) showed a significant decrease in RBC units per patient per ICU stay (RR, 0.88; P=.04).
Specimens with insufficient volume for analysis were rare (≤0.03%), and transfusion-adjusted hemoglobin changes were not significantly different in the primary analysis.

Conclusions:

Utilizing small-volume blood collection tubes in ICUs shows potential for decreasing RBC transfusions.
This practice appears to maintain the integrity of laboratory testing procedures.
The findings suggest a modifiable strategy to reduce iatrogenic anemia and transfusion needs in critically ill patients.