Key result
Pulse contour equations using aortic pressure variables showed a good correlation (r=0.84-0.89) with measured percent changes in stroke volume during VDD pacing in dogs.
Why the study?
Do pulse contour methods accurately estimate stroke volume changes from aortic pressure during VDD pacing in a canine model?
Population
5 mongrel dogs implanted with electromagnetic flowmeters in the aortic root
Comparison
VDD pacing at 3 pacing sites and 5… vs Intrinsic beats (baseline)
Design
Preclinical, Each pacing site/AV delay combination was repeated 5 times in a…
Authors
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Pulse contour equations correlate with stroke volume changes in dogs; leaves open human translation during VDD pacing.
Do pulse contour methods accurately estimate stroke volume changes from aortic pressure during VDD pacing in a canine model?
Effect estimate: r=0.84-0.89
Pulse contour methods using aortic pressure parameters correlate well with stroke volume changes at the onset of VDD pacing in a canine model.
Yu et al. (2002) studied VDD pacing (n=5). Pulse contour equations vs. Electromagnetic flowmeter measurements was evaluated on Correlation between percent change in estimated stroke volume and measured stroke volume (r=0.84-0.89). Pulse contour equations using aortic pressure variables showed a good correlation (r=0.84-0.89) with measured percent changes in stroke volume during VDD pacing in dogs.
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