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Physiopathologie de l'hypertrophie ventriculaire gauche. [Physiopathology of left ventricular hypertrophy]
Archives des Maladies du Coeur et des Vaisseaux
88 Spec No 2
Left ventricular hypertrophy (LVH) is an early complication of hypertension. To a certain degree, this process counteracts the parietal stress induced by high blood pressure. Genetic factors, obesity, high salt diet and different growth factors, notably angiotensin II and noradrenaline, can also predispose to hypertrophic cardiomyopathy. Left ventricular mass is increased on echocardiography in about 20% of hypertensive subjects. LVH is initially associated with a change in myocardial diastolic function and later with abnormal systolic function. It is a major risk factor, a cause of cardiac failure, reduction in coronary reserve and of ventricular arrhythmias. Treatment of hypertension is associated with regression of LVH and preservation or improvement in myocardial diastolic and systolic functions. The decrease in left ventricular mass could reduce the incidence of cardiovascular complications in hypertension.
ElectrocardiographyHumansHypertension/complications/therapyHypertrophy, Left Ventricular/complications/*physiopathology/therapy
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