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Cutoff Value of Phase Angle by Bioelectrical Impedance Analysis at Admission as a Prognostic Factor in Patients with Acute Heart Failure
Published on: June 10, 2025
Anemia does not predict mortality in elderly patients with heart failure
Roger Kerzner1, Brian F Gage, Michael W Rich
1Department of Medicine, Washington University School of Medicine, St Louis, MO 63110, USA.
The American Journal of Geriatric Cardiology
|March 27, 2007
Summary
Anemia predicts worse survival in younger heart failure (HF) patients, but not in those aged 75 or older. This study clarifies the prognostic importance of anemia in elderly HF populations.
Area of Science:
- Cardiology
- Geriatrics
- Internal Medicine
Background:
- Anemia is increasingly recognized as a significant predictor of adverse outcomes in heart failure (HF) patients.
- The prognostic value of anemia, specifically in the elderly HF population, remains less understood.
- Understanding this relationship is crucial for tailoring treatment and improving outcomes in this vulnerable group.
Purpose of the Study:
- To investigate and quantify the prognostic significance of anemia in elderly versus younger patients diagnosed with heart failure.
- To determine if hemoglobin levels correlate with mortality risk across different age groups within a heart failure cohort.
Main Methods:
- A retrospective chart review was conducted on 359 patients hospitalized with heart failure in 1999.
- Patients were stratified into groups based on hemoglobin (Hgb) levels: <11.5 g/dL, 11.5-13.4 g/dL, and >13.4 g/dL.
- Time-to-event analyses were employed to assess the association between Hgb levels and mortality over a 25-month follow-up period.
Main Results:
- In patients younger than 75 years (n=204), lower hemoglobin levels were significantly associated with worse survival (P=.03).
- In contrast, no significant correlation between hemoglobin levels and mortality was observed in patients aged 75 years or older (n=155; P not significant).
- These findings indicate an age-dependent relationship between anemia and mortality risk in heart failure.
Conclusions:
- Anemia is a significant predictor of long-term mortality in younger patients hospitalized with heart failure.
- The prognostic importance of anemia appears diminished in very elderly patients (≥75 years) with heart failure.
- Further research may be needed to explore alternative prognostic markers in elderly heart failure patients.
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