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Updated: Jun 6, 2026

A Model of Cardiac Remodeling Through Constriction of the Abdominal Aorta in Rats
Published on: December 2, 2016
[Heart remodeling in case of isolated systolic arterial hypertension]
Insights
Isolated systolic hypertension causes interventricular septum hypertrophy, impacting early diastolic filling. Systolic/diastolic hypertension leads to symmetric hypertrophy, affecting later diastolic filling stages in both ventricles.
Area of Science:
- Cardiology
- Hypertension Research
- Cardiac Imaging
Context:
- Hypertension is a major cardiovascular risk factor.
- Left ventricular hypertrophy (LVH) is a common adaptation to hypertension.
- Different patterns of LVH may have distinct functional consequences.
Purpose:
- To investigate the relationship between hypertension types and left ventricular hypertrophy patterns.
- To assess the impact of different LVH patterns on diastolic function.
Summary:
- Patients with isolated systolic hypertension showed isolated interventricular septal hypertrophy.
- Patients with systolic/diastolic hypertension exhibited symmetric hypertrophy of the septum and free left ventricular wall.
- Septal hypertrophy impaired early diastolic filling, while free wall hypertrophy affected later diastolic filling stages.
Impact:
- Understanding specific LVH patterns associated with hypertension types can refine risk stratification.
- This research may inform targeted therapeutic strategies for hypertensive heart disease.
- Differentiated insights into diastolic dysfunction mechanisms in various hypertensive states.
Abstract:
Examination of 32 patients with isolated systolic arterial hypertension (office blood pressure 171.9 = -3.3/79.7 +/- 0.2 mm Hg) and 54 ones with systolic/diastolic hypertension) 179.8 +/- 3.9/114.8 +/- 1.9 mm Hg) showed that the former are characterized by isolated hypertrophy of interventricular septum, the latter by symmetric hypertrophy of the septum and free left ventricular wall. Septal hypertrophy affects the initial phase of diastolic filling of the left ventricle as appears from longer time of isovolume relaxation and low peak rate of early transmitral blood flow; it does not influence diastolic function of the right ventricle. Hypertrophy of the free left ventricular wall disturbs the final stage of early diastolic filling of both right and left ventricles manifest as increased duration of their slowed early filling.
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