Abstract
Most studies have shown that prognosis of heart failure with preserved systolic function is as poor as that of heart failure with depressed systolic function, although these results may be biased by the fact that these types of heart failure have different characteristics (age, comorbidity, treatment), which can influence prognosis. Our aim was to determine whether short-term morbidity and mortality differed in these 2 subgroups of heart failure patients when they were comparable in terms of age, associated comorbidity, and therapy. We analyzed 2 groups of patients aged >70 years who were candidates to receive beta blockers (preserved systolic function, 145; depressed systolic function, 174), consecutively discharged from 2 Algerian hospitals with a diagnosis of heart failure, and compared cardiovascular morbidity and mortality 3 months after discharge. Mean age was similar (77.5 vs 78.2 years). Left ventricular ejection fraction was 56.2%±8.1% vs 33%±6.9% (P<.001). The combined event rate (death, hospitalization for heart failure, acute coronary syndrome, or stroke) at 3 months after discharge was lower in patients with heart failure and preserved systolic function (13.4% vs 20.6%; P=.026). Depressed systolic function was an independent predictor of greater incidence of events (odds ratio=1.732; P=.048). In patients of similar age and receiving similar treatment, short-term prognosis is better in patients with heart failure and preserved systolic function than in those with depressed systolic function
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