Comparison of Candesartan, Enalapril, and Their Combination in Congestive Heart Failure

Abstract
Background —We investigated the effects of candesartan (an angiotensin II antagonist) alone, enalapril alone, and their combination on exercise tolerance, ventricular function, quality of life (QOL), neurohormone levels, and tolerability in congestive heart failure (CHF). Methods and Results —Seven hundred sixty-eight patients in New York Heart Association functional class (NYHA-FC) II to IV with ejection fraction (EF) P =NS) more with candesartan-plus-enalapril therapy (0.025±0.004) than with candesartan alone (0.015±0.004) or enalapril alone(0.015±0.005). End-diastolic (EDV) and end-systolic (ESV) volumes increased less with combination therapy (EDV 8±4 mL; ESV 1±4 mL; P P P P Conclusions —Candesartan alone was as effective, safe, and tolerable as enalapril. The combination of candesartan and enalapril was more beneficial for preventing left ventricular remodeling than either candesartan or enalapril alone.

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