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[Left ventricular hypertrophy in hypertensive patients]
1Service de Cardiologie A, CHU de la Timone, Marseille.
Insights
Left ventricular hypertrophy (LVH) in hypertension patients increases heart mass, impairing cardiac function and coronary circulation. This condition significantly worsens the prognosis for individuals with high blood pressure.
Area of Science:
- Cardiology
- Hypertension Research
- Cardiac Pathophysiology
Context:
- Hypertension frequently leads to left ventricular hypertrophy (LVH).
- LVH involves increased myocardial mass due to cellular and extracellular changes.
- Prevalence of LVH in hypertension ranges from 30% to 60%.
Purpose:
- To detail the characteristics of left ventricular hypertrophy in hypertensive patients.
- To elucidate the functional and circulatory consequences of LVH.
- To highlight LVH as a critical prognostic factor in hypertension.
Summary:
- LVH presents as concentric or eccentric remodeling, affecting diastolic and systolic function.
- It compromises coronary circulation, causing subendocardial hypoperfusion.
- LVH increases the risk of cardiac arrhythmias and portends a poor prognosis.
Impact:
- Understanding LVH mechanisms is crucial for managing hypertension.
- Early detection via electrocardiography aids risk stratification.
- LVH is a significant, independent risk factor impacting patient outcomes.
Abstract:
Left ventricular hypertrophy associated with hypertension is characterised by an increase in ventricular mass, secondary to hypertrophy of myocardial cells and to the development of collagen tissue and capillaries. Easily detectable by electrocardiography, it occurs in 30 to 60% of hypertension patients, in a concentric form with symmetric or asymmetric thickening of the walls, or in an eccentric form with dilatation of the ventricular cavity. It impairs the functional properties of the myocardium, first affecting diastolic function then, later, systolic function. It interferes with the coronary circulation, with a decrease in coronary reserves and hypoperfusion of subendocardial layers. It predisposes to the onset of ventricular and supraventricular arrhythmias. It is a major and independent risk factor, severely marring the prognosis of hypertension sufferers.