Myocardial twitch duration and the dependence of oxygen consumption on pressure-volume area: experiments and modelling
نویسندگان
چکیده
منابع مشابه
Myocardial oxygen consumption and the left ventricular pressure-volume area in normal and hypertrophic canine hearts.
BACKGROUND To assess and compare the energy demands of normal and hypertrophic hearts, we defined the relation between myocardial oxygen consumption (MVO2, an index of the energy consumed by contraction) and the left ventricular pressure-volume area (PVA, an index of the total mechanical energy generated by contraction) in eight normal and eight hypertrophic (aortic band model) dog hearts; MVO2...
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چکیده ندارد.
15 صفحه اولHemodynamic dependence of myocardial oxygen consumption indexes.
We tested the afterload and contractile state dependency of three indexes of myocardial oxygen consumption (MVO2): total energy requirement (Et), pressure work index (PWI), and pressure-volume area (PVA). MVO2 was measured in seven isolated canine hearts at four or five different end-diastolic volumes at each of three settings of afterload resistance and with the hearts contracting isovolumical...
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ژورنال
عنوان ژورنال: The Journal of Physiology
سال: 2012
ISSN: 0022-3751
DOI: 10.1113/jphysiol.2012.228965