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Eur Heart J. 1999 Jan;20(2):136-9.

Long-term survival in severe heart failure in patients treated with enalapril. Ten year follow-up of CONSENSUS I.

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  • 1Department of Medicine, Sahlgrenska University HospitallOstra, Göteborg, Sweden.



The CONSENSUS trial was the first study to show prognostic improvement by an ACE inhibitor. Patients in NYHA class IV heart failure were treated with enalapril or placebo. After study completion (average 183 days) all patients were offered open-label enalapril therapy. This paper reports on the survival at the 10-year follow up of the patients randomized in the CONSENSUS trial.


All 35 participating centres in CONSENSUS I were asked to complete a questionnaire on the survival status at 1 November 1996 of patients randomized in CONSENSUS.


At 10-year follow up, one patient was lost to follow-up. Five patients, all in the enalapril group, were long-term survivors (P = 0.004). Averaged over the duration of the trial (double-blind plus open-label extension) the risk reduction was 30% (P = 0.008), with a 95% confidence interval of 11% to 46%. At the end of the double-blind study period, mortality was considerably higher among patients who did not receive open ACE inhibitor therapy compared to those who did.


After a treatment period of, on average, 6 months, enalapril was shown to be effective. The effect was sustained for at least 4 years i.e. for another 3.5 years. The present follow-up is the first heart failure trial where the full life-cycle has been followed from randomization. In severe heart failure, mortality is significantly reduced by enalapril. On average, the beneficial effect is maintained for several years and overall survival time is prolonged by 50% (from 521 to 781 days).

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