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  • Title: Ramipril and captopril in patients with heart failure: effects on hemodynamics and vasoconstrictor systems.
    Author: Manthey J, Osterziel KJ, Röhrig N, Dietz R, Hackenthal E, Schmidt-Gayk H, Kübler W.
    Journal: Am J Cardiol; 1987 Apr 24; 59(10):171D-175D. PubMed ID: 2953224.
    Abstract:
    Fifteen patients with congestive heart failure (New York Heart Association III) were randomly assigned to treatment with either captopril or ramipril, a newly developed angiotensin converting enzyme inhibitor. Both groups were similar with respect to baseline hemodynamic measurements and plasma levels of norepinephrine, renin and vasopressin. The group receiving ramipril showed hemodynamic changes comparable to the group receiving captopril on the seventh day of treatment. The stroke volume index increased by 20% versus 21%, respectively, and the total peripheral resistance decreased by 13% versus 20%, respectively. The decrease in blood pressure and the tendency to decrease heart rate were similar in both groups. All patients had reactive hyperreninemia during therapy with the converting enzyme inhibitor. The resting elevated plasma norepinephrine decreased in both groups significantly, whereas vasopressin did not change. The hemodynamic improvement was more pronounced and comparable in both groups during exercise. Thus, ramipril is equally effective compared with captopril in the treatment of patients with severe congestive heart failure.
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