Impact of geriatric assessment variables on 30-day mortality among older patients with acute heart failure

Abstract

Objective. To study the impact of geriatric assessment variables on 30-day mortality among older patients with acute heart failure (AHF). Methods. Retrospective analysis of cases in the OAK Registry (Older Acute Heart Failure Key Data), a prospectively compiled database of consecutive patients aged 65 years or older treated for AHF in 3 Spanish emergency departments over a 4-month period (November-December 2011 and January-February 2014). The patients underwent a geriatric assessment adapted for emergency department use on weekdays between 8 AM and 10 PM. Demographic, clinical, laboratory, and geriatric assessment variables were recorded. The geriatric variables were concurrent diseases; polypharmacy; frailty; functional, social, and cognitive status at baseline; results of screening for confusional state, cognitive impairment, and depression; and nutritional status. The primary outcome was all-cause mortality at 30 days. Results. We included 565 patients with a mean (SD) age of 83 (7.1) years; 346 (61.6%) were women. Sixty-five (11.5%) died within 30 days. Independent factors associated with 30-day mortality were acute confusional state (adjusted odds ratio [aOR], 2.2; 95% CI, 1.0-4.8; P=.04), acute illness (aOR, 1.8; 95% CI, 0.9-3.4; P=.05), loss of appetite in the past 3 months (aOR, 1.8; 95% CI, 1.0-3.4; P=.04), frailty (aOR, 2.0, 95% CI, 1.0-4.1; P=.05), and severe disability (aOR, 4.4; 95% CI, 1.9-11.4; P=.01). Conclusions. Certain geriatric variables should be considered when assessing short-term risk in older patients with AHF.