Why the study?
Does the zero-crossing points of dP/dt accurately detect markers of systole compared to ECG R-waves in a pig model?
Population
n=6 large, white, anaesthetised and open chest pigs, instrumented with a conductance catheter
Comparison
Detection of systole using zero-crossing points… vs R-waves of the electrocardiogram (ECG)
Design
Preclinical
Authors
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May support ECG-free systole detection in porcine pressure-volume studies; leaves open human validation.
Does the zero-crossing points of dP/dt accurately detect markers of systole compared to ECG R-waves in a pig model?
The zero-crossing points of dP/dt can be used as a reliable marker of systole when an ECG signal cannot be obtained during multiuse pressure-volume catheterization.
Al-Khalidi et al. (2001) studied this question.
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