Novel predictors of left ventricular reverse remodeling in individuals with recent-onset dilated cardiomyopathy

Milos Kubanek1, Marek Sramko, Jana Maluskova

  • 1Department of Cardiology, Institute for Clinical and Experimental Medicine, Prague, Czech Republic. milos.kubanek@ikem.cz

Insights

Cardiac MRI and B-type natriuretic peptide (BNP) levels effectively predict left ventricular reverse remodeling (LVRR) in recent-onset dilated cardiomyopathy (DCM). These methods offer superior prognostication compared to endomyocardial biopsy and conventional tests.

Area of Science:

  • Cardiology
  • Medical Imaging
  • Biomarkers

Background:

  • Left ventricular reverse remodeling (LVRR) signifies a positive prognosis in recent-onset dilated cardiomyopathy (DCM).
  • Novel prognostic methods are crucial for predicting LVRR in DCM patients.

Purpose of the Study:

  • To assess the predictive performance of cardiac magnetic resonance (CMR), cardiac biomarkers, and endomyocardial biopsy (EMB) for LVRR in recent-onset DCM.
  • To compare the efficacy of CMR, biomarkers, and EMB against conventional methods in predicting LVRR.

Main Methods:

  • 44 patients with recent-onset DCM underwent baseline CMR, biomarker measurements (including B-type natriuretic peptide - BNP), and EMB.
  • Cardiopulmonary exercise testing and echocardiography were also performed.
  • CMR and BNP were reassessed at 12 months, with BNP also measured at 3 and 6 months. LVRR was defined by specific improvements in ejection fraction and left ventricular dimensions.

Main Results:

  • LVRR occurred in 45% of patients at 12 months.
  • Baseline CMR findings, specifically lower late gadolinium enhancement and higher myocardial edema ratio, independently predicted LVRR.
  • The strongest predictor of LVRR at 3 months was the BNP plasma level.

Conclusions:

  • Cardiac magnetic resonance (CMR) and serial B-type natriuretic peptide (BNP) testing are superior predictors of LVRR in recent-onset DCM.
  • These advanced methods outperform endomyocardial biopsy (EMB) results, other biomarkers, and conventional follow-up approaches for predicting LVRR.
Abstract

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