Influence of documented history of coronary artery disease on outcomes in patients admitted for worsening heart failure with reduced ejection fraction in the EVEREST trial.

AIMS

Data on the prognosis of heart failure (HF) patients with coronary artery disease (CAD) have been conflicting. We describe the clinical characteristics and mode-specific outcomes of HF patients with reduced ejection fraction (EF) and documented CAD in a large randomized trial.

METHODS AND RESULTS

EVEREST was a prospective, randomized trial of vasopressin-2 receptor blockade, in addition to standard therapy, in 4133 patients hospitalized with worsening HF and reduced EF. Patients were classified as having CAD based on patient-reported myocardial infarction (MI) or coronary revascularization. We analysed the characteristics and outcomes [all-cause mortality and cardiovascular (CV) mortality/HF hospitalization] of patients with and without documented CAD. All events were centrally adjudicated. Documented CAD was present in 2353 patients (57%). Patients with CAD were older and had more co-morbidities compared with those without CAD. Patients with CAD were more likely to receive a beta-blocker, but less likely to receive an angiotensin-converting enzyme (ACE) inhibitor or aldosterone antagonist (P < 0.01). After risk adjustment, patients with documented CAD had similar mortality [hazard ratio (HR) 1.12, 95% confidence interval (CI) 0.97-1.30], but were at an increased risk for CV mortality/HF hospitalization (HR 1.25, 95% CI 1.12-1.41) due to an increased risk for HF hospitalization (HR 1.26, 95% CI 1.10-1.44). Patients with CAD had increased HF- and MI-related events, but similar rates of sudden cardiac death.

CONCLUSION

Documented CAD in patients hospitalized for worsening HF with reduced EF was associated with a higher burden of co-morbidities, lower use of HF therapies (except beta-blockers), and increased HF hospitalization, while all-cause mortality was similar.