What Are the Common Causes of Chronic Heart Failure?

Answer 1

Chronic heart failure may be a result of left ventricular failure or of the cor pulmonale as a consequence of chronic pulmonary conditions, such as emphysema, pulmonary fibrosis, and increased resistance in the pulmonary circulation. It may also be brought about by mitral stenosis, pulmonary stenosis or insufficiency, and sometimes by coronary sclerosis.

As a consequence of increased resistance in the pulmonary artery, the right ventricle, eventually, is unable to throw out all its blood, and systemic venous congestion results, which is probably a combination of cardiac and extra-cardiac factors like decreased glomerular filtration and retention of salt and water due to renal congestion.