to determine the efficacy of converting-enzyme inhibition in patients with low-renin congestive heart failure ( chf ) , the long-term hemodynamic and clinical responses to captopril were evaluated in 26 consecutive patients with severe , chronic chf whose pretreatment plasma renin activity ( pra ) was less than 2 ng/ml/hour .
C0018802
congestive heart failure
C0006938
captopril