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Related Experiment Videos

Physiologic changes during tourniquet use in children.

M Goodarzi1, N H Shier, J A Ogden

  • 1Shriners Hospital for Crippled Children, Tampa, Florida 33612.

Journal of Pediatric Orthopedics
|July 1, 1992
PubMed
Summary

Unilateral tourniquet use in children can cause significant physiological changes. Longer tourniquet application times (over 75 minutes) are associated with increased body temperature, heart rate, and lactate levels.

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Area of Science:

  • Pediatric surgery
  • Anesthesiology
  • Physiology

Background:

  • Tourniquet use is common in pediatric surgery.
  • Hemodynamic and metabolic effects require further understanding.

Purpose of the Study:

  • To assess hemodynamic and metabolic effects of unilateral tourniquet use in children.
  • To identify factors influencing these effects.

Main Methods:

  • 30 children undergoing unilateral tourniquet application.
  • Measurement of intraoperative temperature, pulse rate, end-tidal CO2, and lactate.
  • Comparison of pre- and post-inflation values.

Main Results:

  • Maximum changes in temperature and pulse rate observed with tourniquet times > 75 minutes.

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  • Significant increases in lactate and end-tidal CO2 in the same patient group.
  • Individual variability in response noted.

    • Conclusions:

    • Tourniquet application duration impacts physiological responses in children.
    • Close monitoring of hemodynamics and metabolism is crucial during prolonged tourniquet use.
    • Further research needed to optimize tourniquet protocols in pediatric patients.