About this video
Heart failure explained: learn the causes, symptoms, tests, and treatments for heart failure with reduced and preserved ejection fraction. This video breaks down cardiac output, preload, afterload, contractility, and heart rate—the four determinants of heart performance—and shows how low cardiac output triggers compensatory mechanisms (Frank–Starling, sympathetic activation, RAAS) that can worsen ventricular remodeling. Viewers will understand signs of left- versus right-sided failure (pulmonary congestion, orthopnea, peripheral edema, raised JVP), how ejection fraction defines HFrEF (50%), and why that distinction matters…
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