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Cardiac output after burn injury
Annals of the Royal College of Surgeons of England
|January 1, 1984
Summary
Extensive burn injuries significantly reduce cardiac output, specifically stroke volume, in patients during resuscitation. This finding, based on impedance plethysmography, highlights critical cardiovascular changes post-burn.
Area of Science:
- Cardiovascular Physiology
- Burn Trauma Research
Background:
- Cardiac output is a critical indicator of circulatory function.
- Burn injury can lead to significant physiological disturbances, including cardiovascular compromise.
- Non-invasive monitoring methods are valuable for assessing cardiac function in critically ill patients.
Purpose of the Study:
- To establish normal ranges for cardiac output using impedance plethysmography.
- To investigate the impact of extensive burn injury on cardiac output and stroke volume during resuscitation.
Main Methods:
- Impedance plethysmography was used for non-invasive cardiac output measurement.
- An initial study established normal cardiac output variations with age in 143 healthy subjects.
- Fifteen patients with extensive burns were monitored during the resuscitation phase.
Main Results:
- Fourteen out of fifteen burn patients exhibited a stroke volume below the established normal range.
- This indicates a significant depression of cardiac function in the majority of patients studied.
Conclusions:
- Extensive burn injury leads to a marked depression of stroke volume.
- Impedance plethysmography is a viable method for monitoring cardiac output in burn patients.
- Early identification of reduced stroke volume is crucial for timely intervention in burn resuscitation.
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