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1 The angiotensin-converting-enzyme inhibitor captopril is known to produce beneficial haemodynamic effects in patients with chronic congestive heart failure. 2 Twelve patients with chronic congestive heart failure were conventionally treated with digitalis and diuretic therapy plus oral captopril (75-150 mg/day), and 14 patients were used as a control group. 3 There was no improvement in functional and haemodynamic values in the controls, but the patients treated with captopril showed a significant functional improvement (increase of exercise time and improvement in New York Heart Association functional class), a definitive decrease in systemic vascular resistance (20%), and a significant increase in the cardiac index and ejection fraction (18% and 28% respectively).
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