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Comprehensive Assessment of Left Ventricular Mass, Its Derived Indices, and Relative Wall Thickness in Ischemic Heart
Qiang Zhang1, Hui Cai2, Jiahao Pan1
1Department of Cardiothoracic Surgery, Affiliated Hospital of Nantong University, Nantong, China.
Insights
Left ventricular mass index (LVMI) and relative wall thickness (RWT) are key indicators for predicting adverse events in ischemic heart disease (IHD). Their assessment aids in risk stratification and personalized treatment strategies for IHD patients.
Area of Science:
- Cardiology
- Cardiovascular Imaging
- Pathophysiology
Background:
- Ischemic heart disease (IHD) is a major cause of cardiovascular death globally.
- Left ventricular (LV) remodeling, measured by LV mass index (LVMI) and relative wall thickness (RWT), is critical in IHD progression.
- LV remodeling links ischemic events to clinical outcomes.
Purpose of the Study:
- To review the mechanisms, prognostic significance, and clinical impact of LV mass, LVMI, and RWT in IHD.
- To synthesize current evidence on these echocardiographic parameters in the context of IHD.
Main Methods:
- A comprehensive narrative synthesis approach was employed.
- Systematic literature searches were conducted across major biomedical databases.
- Relevant studies on LV remodeling in IHD were analyzed.
Main Results:
- LVMI and RWT are strong, independent predictors of adverse cardiovascular events in IHD.
- Concentric hypertrophy (high LVMI and RWT) presents the highest risk across imaging methods.
- These metrics offer prognostic value beyond traditional risk factors and indicate treatment response.
Conclusions:
- Integrated assessment of LVMI and RWT is vital for IHD risk stratification and personalized management.
- Standardized therapeutic targets and surrogate endpoints in clinical trials require further research.
- Dynamic assessment of LVMI and RWT provides insights into therapeutic efficacy.
Background:
Ischemic heart disease (IHD) remains a leading cause of global cardiovascular mortality. Left ventricular (LV) remodeling, characterized by changes in LV mass index (LVMI) and relative wall thickness (RWT), is a central pathological process linking myocardial ischemia to adverse clinical outcomes.
Summary:
This narrative review synthesizes current evidence on the pathophysiological mechanisms, prognostic value, and clinical implications of LVMI and RWT across the IHD spectrum. Convergent findings demonstrate that both LVMI and RWT are robust, independent predictors of adverse cardiovascular events. Among remodeling patterns, concentric hypertrophy (elevated LVMI with elevated RWT) is consistently associated with the highest risk across imaging modalities. These parameters offer incremental prognostic value beyond traditional risk factors, and longitudinal changes provide critical insights into therapeutic response.
Key Messages:
(1) Integrated assessment of LVMI and RWT is essential for accurate risk stratification and personalized management in IHD. (2) Concentric hypertrophy identifies the highest risk phenotype and warrants intensive preventive strategies. (3) Future research should focus on establishing standardized, modality-specific therapeutic thresholds and validating LVMI and RWT as surrogate endpoints in clinical trials.
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