Academic Journal

Soluble transferrin receptor as a marker of tissue iron deficiency: impact on exercise capacity and functional class in patients with heart failure without systemic iron deficiency or anaemia

التفاصيل البيبلوغرافية
العنوان: Soluble transferrin receptor as a marker of tissue iron deficiency: impact on exercise capacity and functional class in patients with heart failure without systemic iron deficiency or anaemia
المؤلفون: Ramos Polo, R, Ras Jimenez, M, Jimenez Marrero, S, Jose Bazan, N, Corbella, M, Calero Molina, E, Alcoberro, L, Quiros Hidalgo, E, Enjuanes Grau, C, Yun Viladomat, S, Ruiz Munoz, M, Garay Melero, A, Moliner Borja, P, Comin Colet, J
المصدر: European Heart Journal ; volume 44, issue Supplement_2 ; ISSN 0195-668X 1522-9645
بيانات النشر: Oxford University Press (OUP)
سنة النشر: 2023
الوصف: Background Soluble receptor of transferrin (sTfR) is a marker of tissue iron status and may help to inform on subtle iron depletion and increased iron demand at tissular level even in the absence of overt systemic iron deficiency or anaemia. In this regard, the impact of raised sTfR levels as a marker of subtle tissue ID on functional limitation and submaximal exercise capacity in non-anaemic HF patients with normal systemic iron status has not been evaluated. Purpose To describe the association between sTfR as a marker of increased iron demand and tissue iron deficiency on submaximal exercise capacity, estimated with the distance walked in the 6-minutes walking test (6MWT), and symptoms of functional limitation (evaluated with the NYHA functional class) in non-anaemic patients with HF and normal systemic iron status. Methods We conducted an observational, prospective, cohort study of 1120 consecutive patients with chronic HF regardless the level of LVEF (DAMOCLES study). Patients included had a normal haemoglobin levels (≥12 g/dL), a normal systemic iron status (serum iron >33 µg/dL, ferritin >100ng/mL and % transferrin saturation >20%) and an available 6-minute walking test data. Tissue ID was defined as levels of sTfR >75th percentile (1.63mg/L). The primary endpoint was the distance walked in the 6MWT at inclusion in the study. The unadjusted associations between sTfR and the distance walked in the 6MWT were explored using General Additive Models (GAM), uni/multivariate linear regression models and also uni/multivariate binary regression models. All models were adjusted by age, sex, and prognostic factors such as LVEF, NYHA, NT-proBNP levels and iron status parameters among other well-known determinants of HF severity. Results The final study cohort consisted in 202 patients from the DAMOCLES study. Mean age was 70±12 years, mean LVEF was 43±15% and 57 (28%) were women. Mean sTfR values were 1.42±0.66 mg/L. Tissue ID was present in 54 patients (25%). In the whole cohort, ...
نوع الوثيقة: article in journal/newspaper
اللغة: English
DOI: 10.1093/eurheartj/ehad655.1079
الاتاحة: https://doi.org/10.1093/eurheartj/ehad655.1079
https://academic.oup.com/eurheartj/article-pdf/44/Supplement_2/ehad655.1079/53594022/ehad655.1079.pdf
Rights: https://academic.oup.com/pages/standard-publication-reuse-rights
رقم الانضمام: edsbas.4D7D9AC5
قاعدة البيانات: BASE
الوصف
DOI:10.1093/eurheartj/ehad655.1079