Soluble Transferrin Receptor as Iron Deficiency Biomarker : Impact on Exercise Capacity in Heart Failure Patients

The soluble transferrin receptor (sTfR) is a marker of tissue iron status, which could indicate an increased iron demand at the tissue level. The impact of sTfR levels on functional capacity and quality of life (QoL) in non-anemic heart failure (HF) patients with otherwise normal systemic iron status has not been evaluated. We conducted an observational, prospective, cohort study of 1236 patients with chronic HF. We selected patients with normal hemoglobin levels and normal systemic iron status. Tissue iron deficiency (ID) was defined as levels of sTfR > 75th percentile (1.63 mg per L). The primary endpoints were the distance walked in the 6 min walking test (6MWT) and the overall summary score (OSS) of the Minnesota Living with Heart Failure Questionnaire (MLHFQ). The final study cohort consisted of 215 patients. Overall QoL was significantly worse (51 ± 27 vs. 39 ± 20, p-value = 0.006, respectively), and the 6 MWT distance was significantly worse in patients with tissue ID when compared to patients without tissue ID (206 ± 179 m vs. 314 ± 155, p-value < 0.0001, respectively). Higher sTfR levels, indicating increased iron demand, were associated with a shorter distance in the 6 MWT (standardized β = -0.249, p < 0.001) and a higher MLHFQ OSS (standardized β = 0.183, p-value = 0.008). In this study, we show that in patients with normal systemic iron parameters, higher levels of sTfR are strongly associated with an impaired submaximal exercise capacity and with worse QoL.

Medienart:

E-Artikel

Erscheinungsjahr:

2023

Erschienen:

2023

Enthalten in:

Zur Gesamtaufnahme - volume:13

Enthalten in:

Journal of personalized medicine - 13(2023), 8 vom: 21. Aug.

Sprache:

Englisch

Beteiligte Personen:

Ras-Jiménez, Maria Del Mar [VerfasserIn]
Ramos-Polo, Raúl [VerfasserIn]
Francesch Manzano, Josep [VerfasserIn]
Corbella Santano, Miriam [VerfasserIn]
Morillas Climent, Herminio [VerfasserIn]
Jose-Bazán, Núria [VerfasserIn]
Jiménez-Marrero, Santiago [VerfasserIn]
Garcimartin Cerezo, Paloma [VerfasserIn]
Yun Viladomat, Sergi [VerfasserIn]
Moliner Borja, Pedro [VerfasserIn]
Torres Cardús, Blanca [VerfasserIn]
Verdú-Rotellar, José Maria [VerfasserIn]
Diez-López, Carles [VerfasserIn]
González-Costello, José [VerfasserIn]
García-Romero, Elena [VerfasserIn]
de Frutos Seminario, Fernando [VerfasserIn]
Triguero-Llonch, Laura [VerfasserIn]
Enjuanes Grau, Cristina [VerfasserIn]
Tajes Orduña, Marta [VerfasserIn]
Comin-Colet, Josep [VerfasserIn]

Links:

Volltext

Themen:

6 min walking test (6MWT)
Heart failure
Iron deficiency
Journal Article
Minnesota Living with Heart Failure Questionnaire (MLHFQ)
Quality of life
Soluble transferrin receptor
Submaximal functional capacity

Anmerkungen:

Date Revised 27.08.2023

published: Electronic

Citation Status PubMed-not-MEDLINE

doi:

10.3390/jpm13081282

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM361217803