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Updated: Jul 16, 2025

Studying Left Ventricular Reverse Remodeling by Aortic Debanding in Rodents
Published on: July 14, 2021
The potential predictive value of cardiac mechanics for left ventricular reverse remodelling in dilated
Ao Kan1, Qimin Fang1, Shuhao Li1
1Department of Radiology, The Second Affiliated Hospital of Nanchang University, Nanchang, China.
Insights
Left ventricular reverse remodelling (LVRR) in dilated cardiomyopathy (DCM) patients is predicted by baseline cardiac magnetic resonance (CMR) parameters. Left ventricular remodelling index (LVRI) and ratio of global longitudinal peak strain (rGLPS) are independent predictors of LVRR.
Area of Science:
- Cardiology
- Medical Imaging
- Biomedical Engineering
Background:
- Left ventricular reverse remodelling (LVRR) is a key goal in managing dilated cardiomyopathy (DCM).
- Cardiac magnetic resonance (CMR) offers comprehensive assessment of cardiac structure and function.
- Identifying predictors of LVRR can optimize patient outcomes.
Purpose of the Study:
- To assess baseline CMR parameters for predicting LVRR in DCM patients.
- To investigate independent variables associated with LVRR.
- To evaluate the diagnostic performance of CMR-derived parameters.
Main Methods:
- 98 DCM patients underwent baseline CMR and echocardiography.
- Feature tracking (FT) analysis measured left ventricular (LV) global strain (nStrain) and indexed strain (rStrain).
- Multivariate logistic regression and ROC curves identified predictors of LVRR.
Main Results:
- 36% of DCM patients achieved LVRR at 9-month follow-up.
- Baseline predictors of LVRR included lower LV volume, mass, LGE extent, LVSVi, and higher LVRI, nStrains, rStrains.
- LVRI (OR 1.79) and rGLPS (OR 1.88) were independent predictors of LVRR.
Conclusions:
- Patients achieving LVRR had better baseline LV structure and myocardial deformation.
- LVRI and rGLPS are independent determinants of LVRR in DCM.
- CMR parameters provide valuable insights into predicting LVRR and guiding DCM management.
Aims:
Left ventricular reverse remodelling (LVRR) is an important objective of optimal medical management for dilated cardiomyopathy (DCM) patients, as it is associated with favourable long-term outcomes. Cardiac magnetic resonance (CMR) can comprehensively assess cardiac structure and function. We aimed to assess the CMR parameters at baseline and investigate independent variables to predict LVRR in DCM patients.
Methods And Results:
Nighty-eight initially diagnosed DCM patients who underwent CMR and echocardiography examinations at baseline were included. CMR parameters and feature tracking (FT) based left ventricular (LV) global strain (nStrain) and nStrain indexed to LV cardiac mass index (rStrain) were measured. The predictors of LVRR were determined by multivariate logistic regression analyses. Receiver operating characteristic (ROC) curves were used to evaluate the diagnostic performance of CMR parameters and were compared by the DeLong test. At a median follow-up time of 9 [interquartile range, 7-12] months, 35 DCM patients (36%) achieved LVRR. The patients with LVRR had lower LV volume, mass, LGE extent and stroke volume index (LVSVi) and higher left ventricular remodelling index (LVRI), nStrains, rStrains, and peak systolic strain rate (PSSR) in the longitudinal direction and rStrains in the circumferential direction at baseline (all P < 0.05). In the multivariate logistic regression analyses, LVRI [per SD, odds ratio (OR) 1.79; 95% confidence interval (CI) 1.08-2.98; P = 0.024] and the ratio of global longitudinal peak strain (rGLPS) (per SD, OR 1.88; 95% CI 1.18-3.01; P = 0.008) were independent predictors of LVRR. The combination of LVSVi, LVRI, and rGLPS had a greater area under the curve (AUC) than the combination of LVSVi and LVRI (0.75 vs. 0.68), but not significantly (P = 0.09).
Conclusions:
Patients with LVRR had a lower LV volume index, lower LVSV index, lower LGE extent, higher LVRI, and preserved myocardial deformation in the longitudinal direction at baseline. LVRI and rGLPS at baseline were independent determinants of LVRR.
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