Which of the following conditions are recognized causes of congestive heart failure?

• A. Hypertension is the sole cause.
• B. Ischemic heart disease alone.
• C. Valvular dysfunction alone.
• D. Ischemic heart disease, hypertension, cardiomyopathy, valvular dysfunction, and systolic or diastolic dysfunction.

Answer: (D)

Concerning congestive heart failure, it’s a syndrome that develops from any condition that chronically impairs the heart’s ability to pump or fill. Hypertension gradually creates pressure overload, leading to left ventricular remodeling and diastolic dysfunction, and as it progresses, may contribute to systolic dysfunction as well. Ischemic heart disease damages myocardial tissue, reducing contractility and promoting systolic failure. Cardiomyopathy directly weakens the heart muscle, whether the problem is dilation, hypertrophy, or stiffening. Valvular dysfunction causes either volume overload (valvular regurgitation) or pressure overload (valve stenosis), both of which push the ventricle toward failure. Heart failure can present as either systolic dysfunction (reduced pumping ability) or diastolic dysfunction (impaired filling). Because CHF has multiple potential etiologies, recognizing all these conditions as possible causes is essential. The option that includes ischemic heart disease, hypertension, cardiomyopathy, valvular dysfunction, and both systolic or diastolic dysfunction best reflects the recognized causes.