Risk prediction of atrial fibrillation and its complications in the community using hs troponin I

Christin S. Börschel*, Bastiaan Geelhoed, Teemu Niiranen, Stephan Camen, Maria Benedetta Donati, Aki S. Havulinna, Francesco Gianfagna, Tarja Palosaari, Pekka Jousilahti, Jukka Kontto, Erkki Vartiainen, Francisco M. Ojeda, Hester M. den Ruijter, Simona Costanzo, Giovanni de Gaetano, Augusto Di Castelnuovo, Allan Linneberg, Julie K. Vishram-Nielsen, Maja Lisa Løchen, Wolfgang KoenigTorben Jørgensen, Kari Kuulasmaa, Stefan Blankenberg, Licia Iacoviello, Tanja Zeller, Stefan Söderberg, Veikko Salomaa, Renate B. Schnabel*

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

Abstract

Aims: Atrial fibrillation (AF) is becoming increasingly common. Traditional cardiovascular risk factors (CVRF) do not explain all AF cases. Blood-based biomarkers reflecting cardiac injury such as high-sensitivity troponin I (hsTnI) may help close this gap. Methods: We investigated the predictive ability of hsTnI for incident AF in 45,298 participants (median age 51.4 years, 45.0% men) across European community cohorts in comparison to CVRF and established biomarkers (C-reactive protein, N-terminal pro B-type natriuretic peptide). Results: During a median follow-up of 7.7 years, 1734 (3.8%) participants developed AF. Those in the highest hsTnI quarter (≥4.2 ng/L) had a 3.91-fold (95% confidence interval (CI) 3.30, 4.63; p <.01) risk for developing AF compared to the lowest quarter (<1.4 ng/L). In multivariable-adjusted Cox proportional hazards models a statistically significant association was seen between hsTnI and AF (hazard ratio (HR) per 1 standard deviation (SD) increase in log10(hsTnI) 1.08; 95% CI 1.01, 1.16; p =.03). Inclusion of hsTnI did improve model discrimination (C-index CVRF 0.811 vs. C-index CVRF and hsTnI 0.813; p <.01). Higher hsTnI concentrations were associated with heart failure (HR per SD 1.37; 95% CI 1.12, 1.68; p <.01) and overall mortality (HR per SD 1.24; 95% CI 1.09, 1.41; p <.01). Conclusion: hsTnI as a biomarker of myocardial injury does not improve prediction of AF incidence beyond classical CVRF and NT-proBNP. However, it is associated with the AF-related disease heart failure and mortality likely reflecting underlying subclinical cardiovascular impairment.

Original languageEnglish
Article numbere13950
JournalEuropean Journal of Clinical Investigation
Volume53
Issue number5
DOIs
Publication statusPublished - May 2023

Keywords

  • atrial fibrillation
  • biomarkers
  • epidemiology
  • high-sensitivity troponin I
  • N-terminal pro B-type natriuretic peptide

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