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[LEVEL 1--a new blood warming device]

M Arndt1, R Hofmockel, G Benad

  • 1Klinik und Poliklinik für Anästhesiologie und Intensivtherapie, Medizinischen Fakultät, Universität Rostock.

Anaesthesiologie Und Reanimation
|January 1, 1994
PubMed
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Hypothermia is a critical issue during massive blood transfusions, especially in polytrauma patients. The LEVEL 1 blood warmer effectively restores normal body temperature using a rapid, high-flow heat-exchange system.

Area of Science:

  • Medical Devices
  • Critical Care Medicine
  • Biomedical Engineering

Background:

  • Hypothermia (body temperature <35°C) is a significant complication in patients requiring massive blood transfusions.
  • This complication is particularly prevalent in polytrauma patients, increasing morbidity and mortality.
  • Restoring normal body temperature is crucial for patient outcomes, necessitating efficient and rapid warming solutions.

Purpose of the Study:

  • To evaluate the efficacy and operational characteristics of the LEVEL 1 blood warmer.
  • To determine if the device can effectively address the challenges of warming blood during high-flow transfusion scenarios.

Main Methods:

  • The study assessed a novel heat-exchanger blood warmer, the LEVEL 1, utilizing an aluminum column.
  • Performance was evaluated based on warming speed, efficiency, and operational parameters like priming volume.

Related Experiment Videos

  • Specific testing involved warming 600 ml of 0.9% sodium chloride from 4°C to 35°C.

    • Main Results:

    • The LEVEL 1 system demonstrated high effectiveness, warming 600 ml of fluid from 4°C to 35°C within one minute.
    • The device is quickly operational and features a low priming volume, minimizing waste and preparation time.
    • It was identified as the sole device capable of adequately warming blood during very rapid transfusion rates.

    Conclusions:

    • The LEVEL 1 blood warmer is a highly effective and rapidly acting device for preventing and treating hypothermia associated with massive blood transfusions.
    • Its ability to operate at high flow rates and its quick readiness make it suitable for critical care settings, especially for polytrauma patients.
    • This technology addresses a critical need for efficient blood warming during rapid transfusion protocols.