? Objective:To evaluate the effect of intravenous nitroglycerine(NG) on plasma endothelin in patients with congestive heart failure. Methods:Thirty two patients with congestive heart failure (CHF)and 17 normal healthy control were studied.In the CHF group ,17 cases had coronary heart disease.The plasma endothelin (ET) was determined by radioimmuoassay before and after intravenous administration of nitroglycerin NG.Heart rate and blood pressure were also recorded. Results:The plasma ET in CHF group was significantly higher than normal contro...