Can Latent Heat Warm Blood Safely?
Author Information
Author(s): Mark P McEwen, David Roxby
Primary Institution: Flinders University
Hypothesis
Can latent heat be used to warm blood from its storage temperature to normal body temperature without causing damage?
Conclusion
Latent heat can effectively warm cold blood to near body temperature without adversely affecting red cell integrity.
Supporting Evidence
- The prototype consistently warmed red cells from approximately 4°C to approximately 35°C.
- Warming with latent heat did not affect red cell integrity more than the approved dry heat blood warmer.
- Up to 66% of trauma patients are reported to be hypothermic at the time of hospital admission.
Takeaway
This study shows that a special device can warm blood using a method that doesn't need electricity, helping to keep patients safe from getting too cold.
Methodology
The study compared a prototype blood warmer using latent heat with an approved dry heat blood warmer, measuring the effects on red cell integrity.
Potential Biases
Potential bias due to the use of discarded blood units that may not reflect the quality of transfusable blood.
Limitations
The red cell units used were unsuitable for transfusion, which may not represent typical storage lesions.
Digital Object Identifier (DOI)
Want to read the original?
Access the complete publication on the publisher's website