Right ventricular failure is commonly characterized by which of the following?

Right ventricular failure is commonly characterized by which of the following?

• A. Pulmonary hypertension or left ventricular failure
• B. Left atrial enlargement
• C. Isolated right atrial pressure elevation
• D. Primary right ventricular hypertrophy only

Answer: (A)

Right ventricular failure is mainly driven by conditions that raise the load the right ventricle must pump against or by backward effects from left-sided heart disease. When pulmonary hypertension develops, the RV faces a higher afterload; over time this pressure burden leads to RV hypertrophy, dilation, and eventually failure with systemic venous congestion. Similarly, left-sided heart failure increases left atrial and pulmonary venous pressures, which spills back into the pulmonary circulation, raising pulmonary arterial pressures and imposing the same afterload on the RV. This sequence explains why RV failure commonly accompanies pulmonary hypertension or left ventricular failure. Left atrial enlargement points to left‑sided disease rather than a primary descriptor of RV failure. Isolated right atrial pressure elevation or primary right ventricular hypertrophy alone do not capture the typical progression to RV failure seen with increased pulmonary pressures or LV failure.

Right ventricular failure is mainly driven by conditions that raise the load the right ventricle must pump against or by backward effects from left-sided heart disease. When pulmonary hypertension develops, the RV faces a higher afterload; over time this pressure burden leads to RV hypertrophy, dilation, and eventually failure with systemic venous congestion. Similarly, left-sided heart failure increases left atrial and pulmonary venous pressures, which spills back into the pulmonary circulation, raising pulmonary arterial pressures and imposing the same afterload on the RV. This sequence explains why RV failure commonly accompanies pulmonary hypertension or left ventricular failure.

Left atrial enlargement points to left‑sided disease rather than a primary descriptor of RV failure. Isolated right atrial pressure elevation or primary right ventricular hypertrophy alone do not capture the typical progression to RV failure seen with increased pulmonary pressures or LV failure.