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Related Experiment Videos

Fat and solid filtration in clinical perfusions.

R E Clark, H W Margraf, R A Beauchamp

    Surgery
    |February 1, 1975
    PubMed
    Summary
    This summary is machine-generated.

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    Polyester wool filters effectively remove significant fat and solids during extracorporeal circulation. Cardiotomy suction is a primary source of filtered fat, supporting its use in perfusion.

    Area of Science:

    • Biomedical Engineering
    • Cardiovascular Surgery

    Background:

    • Extracorporeal circulation (ECC) involves complex physiological challenges.
    • Filtration systems are crucial for managing blood components during ECC.

    Purpose of the Study:

    • To evaluate the fat filtration capabilities of polyester wool filters.
    • To assess filter performance in cardiotomy suction and arterial lines during ECC.

    Main Methods:

    • In vitro analysis of pressure gradient-flow relationship and fibrin microparticle removal.
    • Soxhlet extraction to quantify total fat from filters.
    • Measurement of whole blood and plasma lipids pre- and post-ECC.

    Main Results:

    • A 23 mm Hg pressure drop was observed at 5 L/min water flow.

    Related Experiment Videos

  • 40-52% efficiency in removing 15-250 μm fibrin microparticles.
  • Significant quantities of fat (average 376-512 mg) and non-lipid solids were removed.

    • Conclusions:

    • Polyester wool filters remove substantial fat and solids during ECC.
    • Cardiotomy suction is a major contributor to filtered fat.
    • Increased filtration with perfusion time supports the use of cardiotomy filtration.