DEFINITION
Results from profound impairment of cardiac function leading to a decrease in stroke volume and cardiac output, venous congestion, and peripheral vasoconstriction.
Cardiac dysfunction may be caused by hypertrophic or dilated cardiomyopathies, pericardial tamponade, outflow obstructions, thrombosis, severe endocardiosis, heartworm disease, or severe arrhythmias.
Cardiac “pump” failure may also be secondary to systemic diseases causing myocardial dysfunction such as sepsis.
Results in hypotension and compromised tissue perfusion, with reduced tissue oxygen delivery
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