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Pentalyte does not decrease heparinoid release but does decrease circulating thrombotic mediator activity associated

V G Nielsen1, V E Armstead, B T Geary

  • 1Department of Anesthesiology, Division of Cardiothoracic Anesthesia, The University of Alabama at Birmingham, Birmingham, Alabama 35249, USA. vance.nielsen@ccc.uab.edu

Anesthesia and Analgesia
|February 13, 2001
PubMed
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PentaLyte resuscitation fluid may reduce thrombotic mediator release following major surgery complications like aortic occlusion-reperfusion. This study in rabbits suggests PentaLyte attenuates clot formation without affecting heparinoid release.

Area of Science:

  • Vascular Surgery
  • Trauma Surgery
  • Resuscitation Fluid Therapy

Background:

  • Hemorrhage and thrombosis are significant risks in major vascular and trauma surgery.
  • Heparinoids and thrombotic mediators released during ischemia-reperfusion injury can exacerbate these complications.
  • Previous studies in rabbits showed these mediators after aortic occlusion-reperfusion.

Purpose of the Study:

  • To investigate if resuscitative fluids can mitigate heparinoid and thrombotic mediator release post-aortic occlusion-reperfusion.
  • To assess the impact of lactated Ringer's solution versus PentaLyte on thromboelastographic variables.
  • To evaluate the specific effects on heparinoid and thrombotic mediator release.

Main Methods:

  • Anesthetized rabbits underwent 30 minutes of aortic ischemia followed by reperfusion.

Related Experiment Videos

  • Rabbits received either lactated Ringer's solution or PentaLyte at reperfusion.
  • Thromboelastography was performed on blood samples under various conditions (unmodified, platelet inhibition, heparinase, combined).

    • Main Results:

    • PentaLyte did not alter the thromboelastographic changes in unmodified samples or in the presence of heparinase.
    • Thrombotic mediator release, indicated by changes in reaction time (R) and alpha angle, was significantly reduced by PentaLyte when heparinase was present and platelet inhibition was applied.
    • PentaLyte did not decrease heparinoid release but did attenuate thrombotic mediator release.

    Conclusions:

    • PentaLyte administration attenuates thrombotic mediator release following aortic occlusion-reperfusion in rabbits.
    • The fluid does not appear to affect heparinoid release during this model of surgical injury.
    • These findings suggest a potential benefit of PentaLyte in managing coagulopathy associated with major vascular and trauma surgery.