Observational studyClinical research in cardiology : official journal of the German Cardiac Society2019
Iron deficiency in patients with heart failure with preserved ejection fraction and its association with reduced exercise capacity, muscle strength and quality of life.
Observational study in Clinical research in cardiology : official journal of the German Cardiac Society, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to 2 registered trials, which are not on this map. Cited by 59 papers, 2 of them syntheses that pooled it.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
The Effect of Using Nutrition Education as an Intervention Measure on Elevating the Nutritional Status, Quality of Life, and Self-Care Behavior of Patients With Chronic Heart Failure
IRONICA: IRON Repletion in Congestive Heart Failure - A Randomized Controlled Trial Comparing Oral Versus IV Approaches
Who cites it
59 citing papers in PubMed, 2 syntheses or guidelines pooled it, 101 citations in OpenAlex.
- Efficacy and safety of intravenous iron repletion in patients with heart failure: a systematic review and meta-analysis.Clinical research in cardiology : official journal of the German Cardiac Society · 2023Pooled it
- Markers of Iron Metabolism and Outcomes in Patients with Heart Failure: A Systematic Review.International journal of molecular sciences · 2023Pooled it
- Six-minute walk test: prognostic value and effects of nebivolol versus placebo in elderly patients with heart failure from the SENIORS trial.Clinical research in cardiology : official journal of the German Cardiac Society · 2021Trial
- Intravenous ferric carboxymaltose and exercise capacity in iron-deficient kidney transplant recipients: a randomised, placebo-controlled trial in the Netherlands.EClinicalMedicine · 2026Article
- Article
- From Iron Deficiency to Overload: A Missing Link in the Mechanisms of Cardiac Autonomic Nervous System Dysfunction.Journal of clinical medicine · 2026Review
- High prevalence of iron deficiency and predictive value of nutritional risk scores in critically ill geriatric emergency patients: a prospective cross-sectional study.Scientific reports · 2026Article
- Iron Deficiency in Heart Failure: From ESC Guidelines to Clinical Practice at a Romanian Hospital.Biomedicines · 2025Article
- Transferrin Saturation Is a Better Predictor Than Ferritin of Metabolic and Hemodynamic Exercise Responses in HFpEF.JACC. Heart failure · 2025Article
- Prevalence and prognostic value of different iron deficiency definitions in light chain cardiac amyloidosis patients.ESC heart failure · 2025Article
- ANMCO position paper: diagnosis and treatment of heart failure with preserved systolic function.European heart journal supplements : journal of the European Society of Cardiology · 2025Article
- Prognostic impact of iron deficiency in new-onset chronic heart failure: Danish Heart Failure Registry insights.ESC heart failure · 2025Article
- The association between iron deficiency and muscle mass/strength in patients undergoing maintenance hemodialysis.Frontiers in nutrition · 2025Article
- Iron Metabolism in Cardiovascular Disease.Advances in experimental medicine and biology · 2025Review
- Nutritional and Nutraceutical Support to the Failing Myocardium: A Possible Way of Potentiating the Current Treatment of Heart Failure.International journal of molecular sciences · 2024Review
- The association between transferrin saturation and all-cause mortality in chronic kidney disease: findings from Korean Cohort Study for Outcome in Patients with Chronic Kidney Disease.Kidney research and clinical practice · 2024Article
- Heart failure with mildly reduced and preserved ejection fraction: A review of disease burden and remaining unmet medical needs within a new treatment landscape.Heart failure reviews · 2024Review
- Interaction between systemic iron parameters and left ventricular structure and function in the preserved ejection fraction population: a two-sample bidirectional Mendelian randomization study.Journal of geriatric cardiology : JGC · 2024Article
- Anemia and Iron Deficiency Predict All-Cause Mortality in Patients with Heart Failure and Preserved Ejection Fraction: 6-Year Follow-Up Study.Diagnostics (Basel, Switzerland) · 2024Article
- Contemporary Evidence and Practice on Right Heart Catheterization in Patients with Acute or Chronic Heart Failure.Diagnostics (Basel, Switzerland) · 2024Review
Corrections and comments
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Authors and funding
12 authors at 5 institutions in 4 countries.
Funding
Abstract
backgroundThe prevalence of iron deficiency (ID) in outpatients with heart failure with preserved ejection fraction (HFpEF) and its relation to exercise capacity and quality of life (QoL) is unknown.
methods190 symptomatic outpatients with HFpEF (LVEF 58 ± 7%; age 71 ± 9 years; NYHA 2.4 ± 0.5; BMI 31 ± 6 kg/m
resultsOverall, 111 patients (58.4%) showed ID with 89 having low ferritin-ID (46.84%). 78 (41.1%) patients had isolated ID without anemia and 54 patients showed anemia (28.4%). ID was more prevalent in patients with more severe diastolic dysfunction: E/e' ≤ 8: 44.8% vs. E/e': 9-14: 53.2% vs. E/e' ≥ 15: 86.5% (p = 0.0004). Patients with ID performed worse during the 6MWT (420 ± 137 vs. 344 ± 124 m; p = 0.008) and had worse exercise time in CPX (645 ± 168 vs. 538 ± 178 s, p = 0.03). Patients with low ferritin-ID had lower QoL compared to those without ID (p = 0.03).
conclusionID is a frequent co-morbidity in HFpEF and is associated with reduced exercise capacity and QoL. Its prevalence increases with increasing severity of diastolic dysfunction.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.