Comparison of effects of ascorbic acid on endothelium-dependent vasodilation in patients with chronic congestive heart failure secondary to idiopathic dilated cardiomyopathy versus patients with effort angina pectoris secondary to coronary artery disease

Impaired endothelium-dependent vasodilation has been reported to play an important role in the pathogenesis of cardiovascular diseases such as coronary artery disease (CAD) and congestive heart failure (CHF). However, the precise mechanism of endothelial