Intravenous iron in heart failure: favorable hospital outcomes, uncertain overall survival
A pooled trial analysis found favorable hospitalization and cardiovascular results in people with iron deficiency, while the result for deaths from any cause remained statistically uncertain.
Based on the published abstract. The full paper may contain additional methods, results and limitations.
The 30-second takeaway
The pooled trials suggest that intravenous iron can improve some outcomes for people who have both heart failure and iron deficiency. Hospitalization outcomes and cardiovascular deaths favored iron treatment, but deaths from any cause did not show a statistically significant reduction. These findings do not establish an overall survival benefit.
The abstract omits follow-up lengths, control-treatment details, and absolute event rates. This abstract-based account therefore cannot establish the absolute benefit or how long it lasts.
What researchers found
Combined total heart-failure hospitalizations and cardiovascular deaths
Iron's estimated risk was 0.82 times control risk; a relative risk of one means equal risk. This is not an absolute reduction. Follow-up timing was not reported.
Understanding the combined outcome
The central result brings together hospitalizations for heart failure and cardiovascular deaths. It describes their combined occurrence, without showing how much each component contributed to the overall result.
Why mortality definitions matter
Cardiovascular mortality and mortality from any cause are different endpoints. The cardiovascular result favored iron, while the all-cause result remained uncertain. A nonsignificant finding does not establish that treatment has no effect on survival.
The original publication
Intravenous Iron in Heart Failure Patients With Iron Deficiency: A Meta-Analysis of Randomized Controlled Trials.
Liu Y, Li J, Chen Y et al.
J Evid Based Med · 2025
- PubMed ID
- 40810693
- Record checked
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