Emax in canine left ventricles fell from 2.06 to 1.38 kPa/ml via sino-aortic baroreceptor reflex, rose to 3.83 kPa/ml with cerebral ischaemia, and fell to 1.17 kPa/ml after cardiac denervation.
Canine left ventricles assessed for ventricular contractility using Emax.
Sino-aortic baroreceptor reflex, cerebral ischaemia, and cardiac denervation vs Baseline
Emax (pressure-volume ratio)
The present study on canine left ventricles showed that Emax which we previously proposed as a good index of both ventricular contractility and its pumping capability, decreased from 2.06 to 1.38 kPa/ml (15.5 to 10.4 mmHg/ml) via the sino-aortic baroreceptor reflex. Cerebral ischaemic response increased Emax to 3.83 kPa/ml (28.8 mmHg/ml). Emax decreased to 1.17 kPa/ml (8.8 mmHg/ml) after cardiac denervation.
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Hirotaka Suga
Teikyo University
K Sagawa
General Cardiology
D. P. KOSTIUK
Cardiovascular Research
Johns Hopkins University
Johns Hopkins Medicine
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Suga et al. (Wed,) reported a other. Sino-aortic baroreceptor reflex, cerebral ischaemia, and cardiac denervation vs. Baseline was evaluated on Emax (pressure-volume ratio). Emax in canine left ventricles fell from 2.06 to 1.38 kPa/ml via sino-aortic baroreceptor reflex, rose to 3.83 kPa/ml with cerebral ischaemia, and fell to 1.17 kPa/ml after cardiac denervation.
synapsesocial.com/papers/6a23025b2c1d0c0a01f736e7 — DOI: https://doi.org/10.1093/cvr/10.5.582