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  • Title: Comparison of enalapril and conventional vasodilator therapy in patients with chronic congestive heart failure.
    Author: Lin M, Chiang HT, Chen CY, Chiang BN.
    Journal: J Formos Med Assoc; 1991 May; 90(5):452-9. PubMed ID: 1680982.
    Abstract:
    The aim of this study was to investigate the role of the renin-angiotensin-aldosterone system during anti-heart failure treatment with additional enalapril versus conventional vasodilator therapy (hydralazine + sorbitrate) and to assess whether or not enalapril can be suggested as the preferential vasodilator therapy in patients with chronic congestive heart failure. Over a 2.5-year period, 120 patients (New York Heart Association II-IV, creatinine less than or equal to 2.0 mg/dl) were enrolled in the study and randomly assigned to receive enalapril or hydralazine and sorbitrate therapy in addition to optimal digitalis and diuretics administration. At the end of a one-year followup, there was a tendency for mortality to be lower in the enalapril[correction of enlapril] group (4 cases) compared to the conventional group (9 cases), but the difference was not significant (p = 0.21). Both groups showed similar increases in plasma renin activity. The plasma aldosterone level decreased significantly in the enalapril group (p less than 0.005); whereas it rose significantly in the conventional group (p less than 0.005). The plasma norepinephrine level of the enalapril group fell significantly when compared with the conventional group. Thus, enalapril therapy achieved better reduction in the activating sympathetic system (p less than 0.0001). Reduction in the anti-diuretic hormone level was also found to be highly significant in the enalapril group, whereas no difference was seen in the conventional group. Furthermore, the serum creatinine level and blood urea nitrogen remained unchanged in the conventional group; whereas both were demonstrated to be reduced significantly in the enalapril group at a 1-year follow up.(ABSTRACT TRUNCATED AT 250 WORDS)
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