cardiac contractility

cardiac contractility
the intrinsic property, belonging to cardiac cells and tissues, of contraction in response to an appropriate stimulus. Cardiac contractility is variable and under the control of the autonomic nervous system and is also affected by other factors such as loading conditions; changes in contractility give rise to changes in the strength of contraction of the heart. It may be estimated by the end-systolic pressure-volume relationship, the change in either pressure or volume over time. Called also inotropic state.

Medical dictionary. 2011.

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