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Heart Failure - Pathophysiology (view source)
Revision as of 10:02, 30 June 2016
, 10:02, 30 June 2016→Introduction
* Blood Pressure (BP) = Cardiac Output (CO) x Total Peripheral Resistance (TPR)
* Blood Pressure (BP) = Cardiac Output (CO) x Total Peripheral Resistance (TPR)
* Cardiac Output (CO) = Venous Return (VR)
* Cardiac Output (CO) = Venous Return (VR)
The primary determinants of cardiac performance are:
* '''Preload''': The volume of blood or hydrostatic pressure within the ventricles at the end of diastole.
* '''Afterload''': The force that opposes ejection of blood into the peripheral arterial system, of which arterial blood pressure is the primary factor
* '''Contractility''': The ability of the myocardium to function as a pump and eject blood
== Mechanisms of failure ==
== Mechanisms of failure ==