Key result
Aortic input impedance in conscious dogs was capacitative at lower frequencies and inductive above 3-6 cycles/sec, with pressure rising by 50% of pulse pressure before 1 ml of stroke volume ejection.
Population
Conscious dogs
Design
Preclinical
Authors
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May inform conscious-state hemodynamic models; leaves open translation to human aortic impedance and clinical applications.
In conscious dogs, aortic input impedance is capacitative at low frequencies and inductive at higher frequencies, with a rapid early systolic pressure rise.
Noble et al. (1967) studied Conscious dogs. Heart pacing and myocardial stimulants was evaluated on Aortic input impedance and aortic pressure. Aortic input impedance in conscious dogs was capacitative at lower frequencies and inductive above 3-6 cycles/sec, with pressure rising by 50% of pulse pressure before 1 ml of stroke volume ejection.
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