Prognostic importance of cognitive impairment in chronic heart failure patients: does specialist management make a difference?

European Journal of Heart Failure
Skye N McLennanSimon Stewart

Abstract

Cognitive impairment is common among chronic heart failure (CHF) patients. To determine the prognostic significance of cognitive impairment in patients participating in a randomized study of a CHF management program (CHF-MP). CHF patients were randomized to a CHF-MP (n=100) or usual care (n=100). Baseline cognition was assessed using the Mini Mental Status Examination (MMSE). Five-year all-cause mortality, and combined death-or-readmission, were compared on the basis of the presence (MMSE 19-26) or absence (MMSE >26) of cognitive impairment. 27 patients (13.5%) had cognitive impairment and, on an adjusted basis, were more likely to die (96.3% versus 68.2%. RR 2.19, 95% CI 1.41 to 3.39: P<0.001) and/or experience an unplanned hospitalization (100% versus 94%. RR 1.44, 95% CI 1.06 to 1.95: P=0.019). Cognitively impaired patients had a similar (non-significant) adjusted risk of death-or-readmission in both the CHF-MP (RR 1.40, 95% CI 0.63 to 3.11: P=0.403) and in usual care (RR 1.38, 95% CI 0.75 to 2.53: P=0.305). In the usual care cohort, cognitive impairment was associated with a greater (non-significant), adjusted risk of death (RR 1.61, 95% CI 1.10 to 4.92: P=0.122). In the CHF-MP, adjusted risk of death was significantly high...Continue Reading

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