Key result
Iron deficiency in chronic HF is linked to ~41% higher myocardial energy expenditure.
Why the study?
Iron metabolism and myocardial energy metabolism are altered in CHF patients, but their effects and correlations needed analysis.
Does iron deficiency increase myocardial energy expenditure in patients with chronic heart failure?
Comparison
Iron deficiency vs non-iron deficiency
Design
Observational study
Authors
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Does not warrant changes in iron deficiency management for heart failure; leaves open causal effects on myocardial energetics.
Observational (n=130)
Does iron deficiency increase myocardial energy expenditure in patients with chronic heart failure?
Absolute Event Rate: 92.7% vs 65.6%
p-value: p=0.000
Iron deficiency is highly prevalent in chronic heart failure and independently correlates with increased myocardial energy expenditure, suggesting a mechanism for worsened cardiac function.
Lin et al. (2021) conducted an observational in Chronic heart failure (CHF) (n=130). Iron deficiency vs. No iron deficiency was evaluated on Myocardial energy expenditure (MEE) (p=0.000). Iron deficiency in chronic heart failure patients was associated with significantly higher myocardial energy expenditure compared to those without iron deficiency (92.7 vs. 65.6 cal/min, P=0.000).
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