What is the effect of external counterpulsation on plasma nitric oxide and endothelin-1 levels?
A study conducted in 2006 found that external counterpulsation therapy can improve endothelial function in patients with refractory angina pectoris, and can also lead to an increase in plasma nitric oxide and endothelin-1 levels. This suggests that external counterpulsation may be a promising treatment option for refractory angina. 