Which hemodynamic change is commonly observed in decompensated heart failure?

Which hemodynamic change is commonly observed in decompensated heart failure?

• A. Decreased right atrial pressure
• B. Increased left ventricular contractility
• C. Elevated left and right filling pressures
• D. Decreased systemic vascular resistance

Answer: (C)

In decompensated heart failure, the heart can’t effectively handle the incoming blood, so it becomes congested. This backs up blood into the left atrium and the pulmonary veins, raising left-sided filling pressures (pulmonary capillary wedge pressure). That pressure then reflects back into the lungs and through the right heart, elevating right atrial pressure and overall right-sided filling pressures. The result is a state of congestion on both sides of the circulation, which is why you see signs like pulmonary edema and venous congestion. So the hallmark hemodynamic change is elevated filling pressures on both sides. A decreased right atrial pressure would imply less congestion, which isn’t typical here. Increased left ventricular contractility isn’t characteristic of decompensation, since the failing heart usually has reduced or compromised contractility. Decreased systemic vascular resistance isn’t the primary pattern either, as neurohormonal activation in heart failure more commonly maintains or increases afterload rather than reducing it.

In decompensated heart failure, the heart can’t effectively handle the incoming blood, so it becomes congested. This backs up blood into the left atrium and the pulmonary veins, raising left-sided filling pressures (pulmonary capillary wedge pressure). That pressure then reflects back into the lungs and through the right heart, elevating right atrial pressure and overall right-sided filling pressures. The result is a state of congestion on both sides of the circulation, which is why you see signs like pulmonary edema and venous congestion.

So the hallmark hemodynamic change is elevated filling pressures on both sides. A decreased right atrial pressure would imply less congestion, which isn’t typical here. Increased left ventricular contractility isn’t characteristic of decompensation, since the failing heart usually has reduced or compromised contractility. Decreased systemic vascular resistance isn’t the primary pattern either, as neurohormonal activation in heart failure more commonly maintains or increases afterload rather than reducing it.