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Updated: Aug 17, 2026

Morphological and Functional Assessment of the Right Ventricle Using 3D Echocardiography
Published on: October 28, 2020
[Left ventricle dilatational lesion. Problems of nosology, diagnostics, and treatment]
Insights
The WHO's term "specific cardiomyopathy" may not accurately describe advanced left ventricle issues in heart valve disease. A proposed classification better categorizes patients for improved research into left ventricle dilatation.
Area of Science:
- Cardiology
- Pathology
Background:
- The World Health Organization (WHO) adopted the term "specific cardiomyopathy" in 1995.
- Patients with valvular heart defects often present with advanced left ventricle lesions.
- The group of patients with dilated left ventricle cavity due to acquired heart diseases is heterogeneous, comprising approximately 50% of surgical patients.
Purpose of the Study:
- To address the limitations of the term "specific cardiomyopathy" in describing left ventricle lesions in valvular heart disease.
- To propose a more refined classification of left ventricle dilatation in patients with valvular heart defects.
- To facilitate further research into the pathophysiology and management of left ventricle dilatation in this patient group.
Main Methods:
- Retrospective analysis of patient data with valvular heart defects and left ventricle dilatation.
- Clinical and pathological evaluation to differentiate subgroups of left ventricle dilatation.
- Review of existing literature and WHO classifications.
Main Results:
- The current term "specific cardiomyopathy" is considered inadequate for advanced left ventricle lesions in valvular heart disease.
- A proposed classification divides patients into three main subgroups: 1) quickly regressing symptomatic dilatation from volume overload, 2) valvular cardiomyopathy (terminal stage), and 3) intermediate stage dilatational lesion with pathological remodeling and segmental contractility disturbance.
- This stratification is deemed beneficial for future investigations.
Conclusions:
- The classification of left ventricle dilatation in valvular heart disease requires refinement beyond the current "specific cardiomyopathy" terminology.
- A proposed three-subgroup division offers a more precise framework for understanding and studying these complex cardiac conditions.
- This approach supports targeted research and potentially improved patient management strategies.
Abstract:
The article deals with the problem concerning the use of the term "specific cardiomyopathy", adopted by WHO in 1995, in cases of advanced left ventricle lesion in patients with valvular heart defects. The group of patients with dilated left ventricle cavity, related to acquired heart diseases, is rather heterogeneous and large in number, and includes about 50% of the patients who underwent an operation. In the authors' opinion, it is reasonable to divide them into the following main subgroups: patients with quickly regressing symptomatic left ventricle dilatation, resulting from volume overload; patients with valvular cardiomyopathy (the terminal stage of heart defect); patients with left ventricle dilatational lesion, typical of the intermediate stage with characteristic pathological remodeling and the disturbance of its segmental contractility. The authors consider such a division to be useful for further study of patients with left ventricle dilatation due to valvular heart defects.
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