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Related Experiment Videos

Resuscitation fluid composition and myocardial performance during burn shock.

S T Conahan1, A Dupre, M E Giaimo

  • 1Department of Physiology, Louisiana State University Medical Center, New Orleans 70112.

Circulatory Shock
|January 1, 1987
PubMed
Summary

Ringer's acetate resuscitation improved myocardial function and survival in burn shock models compared to saline or Ringer's lactate. Acetate offers potential advantages over lactate for burn resuscitation fluid composition.

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Area of Science:

  • Biomedical Science
  • Physiology
  • Trauma Care

Background:

  • Burn injuries cause significant fluid loss and affect myocardial function.
  • Current resuscitation fluid choices, like Ringer's lactate, may not be optimal.

Purpose of the Study:

  • To evaluate the impact of different resuscitation fluid compositions on myocardial function and survival after severe burns.
  • To compare Ringer's acetate, Ringer's lactate, and saline in burn shock resuscitation.

Main Methods:

  • Anesthetic burn model (35-40% BSA) in guinea pigs.
  • Administration of no resuscitation, isotonic saline, Ringer's lactate, or Ringer's acetate.
  • Assessment of myocardial function and high-energy phosphate content at 4 hours post-burn.
  • Evaluation of survival rates at 24 and 48 hours post-resuscitation.

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Main Results:

  • Ringer's acetate significantly improved cardiac output and contractility compared to no resuscitation, saline, and Ringer's lactate.
  • Ringer's lactate group showed lower myocardial ATP levels.
  • Survival rates were 100% for Ringer's lactate and 87.5% for Ringer's acetate at 24 hours, but only acetate-treated animals survived at 48 hours.

Conclusions:

  • Resuscitation fluid composition critically impacts outcomes in burn shock.
  • Ringer's acetate demonstrates superior efficacy in restoring myocardial function and improving survival compared to Ringer's lactate and saline.
  • Substitution of acetate for lactate in burn resuscitation warrants consideration.