Left atrial thrombi and spontaneous echo contrast in patients with atrial fibrillation : Systematic analysis of

A G Bejinariu1, D U Härtel2, J Brockmeier2

  • 1Clinic for Cardiology, Angiology and Intensive Care, Klinikum Lippe Detmold, Röntgenstr. 18, 32756, Detmold, Germany. alexandru.bejinariu@klinikum-lippe.de.

Herz
|April 22, 2016
PubMed

Insights

Echocardiographic and epidemiologic factors, not biomarkers, predict left atrial thrombi and spontaneous echo contrast in atrial fibrillation patients. This finding can guide therapeutic strategies for high-risk individuals.

Area of Science:

  • Cardiology
  • Medical Diagnostics

Background:

  • Atrial fibrillation (AF) significantly increases the risk of thromboembolic events.
  • Left atrial appendage thrombi and spontaneous echo contrast (SEC) in AF patients correlate with embolic risk.

Purpose of the Study:

  • To identify predictors of left atrial thrombi and SEC intensity in patients with atrial fibrillation.
  • To evaluate the role of laboratory biomarkers, echocardiographic, and epidemiologic parameters in predicting these outcomes.

Main Methods:

  • A study involving 372 patients with atrial fibrillation undergoing electrical cardioversion.
  • Assessment of CHA2DS2-VASc and HAS-BLED scores, D-dimer, B-type natriuretic peptide, left atrial volume, and ejection fraction.
  • Transesophageal echocardiography-guided strategy was employed.

Main Results:

  • Left ventricular ejection fraction and CHA2DS2-VASc score independently predicted left atrial thrombi and SEC intensity.
  • Left atrial volume predicted SEC intensity but not thrombi.
  • Biomarkers (D-dimer, B-type natriuretic peptide) did not show predictive power for thrombi or SEC.

Conclusions:

  • Echocardiographic parameters (ejection fraction, left atrial volume) and epidemiologic scores (CHA2DS2-VASc) are key predictors of left atrial thrombi and SEC.
  • Studied laboratory biomarkers lack predictive value in this context.
  • Clinical data and transthoracic echocardiography can inform therapeutic strategy adjustments in high-risk AF patients.
Abstract

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