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Clinical evaluation of biventriculo-cineangiographic findings in hypertensive left ventricular hypertrophy
Insights
Hypertensive left ventricular hypertrophy can be classified into symmetrical (SH) and asymmetrical septal hypertrophy (ASH) based on angiography. The ASH group shares similarities with hypertrophic cardiomyopathy (HCM) in septal wall thickness and dynamics.
Area of Science:
- Cardiology
- Medical Imaging
- Pathophysiology
Background:
- Hypertensive left ventricular hypertrophy (LVH) is a significant cardiovascular complication.
- Understanding the distinct patterns of LVH is crucial for accurate diagnosis and management.
- Angiographic classification may reveal differences in hypertensive heart disease.
Purpose of the Study:
- To investigate the angiographic differentiation of hypertensive left ventricular hypertrophy.
- To compare the characteristics of symmetrical (SH) and asymmetrical septal hypertrophy (ASH) in hypertensive hearts.
- To explore the relationship between septal wall thickness and septal-free wall ratio in SH and ASH groups.
Main Methods:
- Angiographic assessment of left ventricular hypertrophy.
- Classification of patients into symmetrical hypertrophy (SH) and asymmetrical septal hypertrophy (ASH) groups.
- Comparison of septal and free wall thickness and dynamics between SH, ASH, and control groups.
Main Results:
- Hypertensive LVH can be angiographically divided into SH and ASH.
- The ASH group exhibited similarities to hypertrophic cardiomyopathy (HCM) in septal configuration, thickness, and dynamics.
- ASH and HCM groups showed significantly greater end-diastolic septal wall thickness compared to the SH group.
- In the SH group, increased septal-free wall ratio correlated with increased septal wall thickness.
Conclusions:
- Angiography provides a method to distinguish between SH and ASH in hypertensive LVH.
- ASH presents distinct morphological and dynamic features resembling HCM.
- Septal wall thickness is a key differentiator between ASH and SH in hypertensive heart disease.
Abstract:
In the present study, we demonstrated that hypertensive left ventricular hypertrophy can be divided angiographically into symmetrical (SH) and asymmetrical septal hypertrophy (ASH) groups. In the SH group, the dynamics of the septal wall and the free wall were almost the same as those of the control group. On the other hand, the ASH group rather resembled the HCM group in the thickness and dynamics of the septal wall and the free wall as well as in the septal configuration. The most characteristic difference of the ASH and HCM groups from the SH group was in the significantly greater thickness of the septal wall at end diastole. However, in view of the developmental mechanism of hypertensive heart, it is interesting to note that the more the septal-free wall ratio increases, the more the thickness of the septal wall increases in the SH group.