Key result
A novel doppler probe successfully measured coronary reactive hyperemia in humans, showing a peak to resting velocity ratio of 5.8 ± 0.6 following 20-second coronary occlusions.
Why the study?
Can a newly developed doppler probe accurately measure phasic coronary velocity and reactive hyperemia in humans during cardiac surgery?
Observational (n=13)
Can a newly developed doppler probe accurately measure phasic coronary velocity and reactive hyperemia in humans during cardiac surgery?
This study provides the first quantitative measurements of coronary reactive hyperemia in humans using a novel doppler probe during cardiac surgery.
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Marcus et al. (1981) conducted an observational in Normal coronary arteries (n=13). Doppler probe measurement of coronary velocity was evaluated on Ratio of peak to resting velocity following 20 seconds of coronary occlusion. A novel doppler probe successfully measured coronary reactive hyperemia in humans, showing a peak to resting velocity ratio of 5.8 ± 0.6 following 20-second coronary occlusions.
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