St2 in patients with severe aortic stenosis and heart failure

Andrew Cai, Alejandra Miyazawa, Nicholas Sunderland, Susan E. Piper, Thomas G.J. Gibbs, Duolao Wang, Sadie Redding, George Amin-Youseff, Olaf Wendler, Jonathan Byrne, Philip A. Maccarthy, Ajay M. Shah, Theresa A. McDonagh, Rafal Dworakowski*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

11 Citations (Scopus)

Abstract

Background: ST2 is a circulating biomarker that is well established for predicting outcome in heart failure (HF). This is the first study to look at ST2 concentrations in optimally treated patients with stable but significant left ventricular systolic dysfunction (LVSD) compared to patients with severe aortic stenosis (AS). Methods: Two cohorts were retrospectively studied: 94 patients undergoing transcatheter aortic valve implantation for severe AS (63 with normal ejection fraction [EF] and 31 with reduced EF), and 50 patients with severe LVSD from non-valvular causes. ST2 pre-procedural samples were taken, and repeated again at 3 and 6 months. Patients were followed-up for 2 years. Data was analyzed using SPSS software. Results: Baseline concentrations of soluble ST2 did not differ significantly between the HF group and AS group with normal EF (EF ≥ 50%). However, in the AS group with a low EF (EF < 50%) ST2 concentrations were significantly higher that the HF group (p = 0.009). New York Heart Association class IV HF, baseline N-terminal pro-B-type natriuretic peptide and gender were all independent predictors of soluble ST2 (sST2) baseline concentrations. Conclusions: Raised ST2 concentrations in the context of severe AS may be a marker for subclinical or clinical left ventricular dysfunction. More research is required to assess its use for assessment of prognosis and response to treatment.

Original languageEnglish
Pages (from-to)129-135
Number of pages7
JournalCardiology Journal
Volume28
Issue number1
DOIs
Publication statusPublished - 2021

Keywords

  • Aortic stenosis
  • Biomarkers
  • Heart failure
  • ST2
  • Transcatheter aortic valve implantation

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