Long-term results after a telephone intervention in chronic heart failure: DIAL (Randomized Trial of Phone Intervention in Chronic Heart Failure) follow-up

Journal of the American College of Cardiology
Daniel FerranteGESICA Investigators

Abstract

The purpose of this study was to assess the rate of death and hospitalization for heart failure (HF) 1 and 3 years after a randomized trial of telephone intervention aimed to improve education and compliance in stable patients with HF ended. The long-term effects of HF programs are not well known. In all, 1,518 patients with HF were randomized into the DIAL (Randomized Trial of Phone Intervention in Chronic Heart Failure). After completion of the trial, patients were followed up to 3 years to assess major outcomes. Compliance with diet, weight control, and treatment was evaluated. The effect of the intervention on mortality and HF hospitalizations was assessed using relative risk (RR), relative risk reduction, and Cox proportional hazards model for adjusting by potential confounders. The rate of death or hospitalization for HF was lower in the intervention group (37.2% vs. 42.6%, RR: 0.81, 95% confidence interval [CI]: 0.69 to 0.96; p = 0.013) 1 and 3 years (55.7% vs. 57.5%, RR: 0.88, 95% CI: 0.77 to 1.00; p = 0.05) after the intervention ended. This benefit was mainly caused by a reduction in admission for HF (28.5% vs. 35.1% after 3 years, RR: 0.72, 95% CI: 0.60 to 0.87; p = 0.0004). Patients who showed improvement in 1 or mo...Continue Reading

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