Abstract
Cardiac hypertrophy and left ventricular dysfunction constitute the main forms of cardiac involvement secondary to elevation of arterial pressure. Impairment of coronary vasodilator reserve and cardiac arrhythmias are also related to hypertension though less well recognized problems. Such changes in cardiac anatomy and funcion in hypertensive patients are not only due to increase in pressure overload but also to other modulating mechanisms. The sympathetic nervous system plays a central role among these mechanisms. Adrenergic blocking agents by both relieving the pressure overload and interfering with sympathetic functions can thus produce important changes in cardiac structure and function. Regression of cardiac hypertrophy, alterations in ventricular systolic and diastolic functions and improvement of coronary vasodilator reserve were all reported following adrenergic blockade therapy [1, 13]. Regression of ischemic changes and left ventricular strain pattern in the electrocardiogram can be demonstrated after the use of many of these drugs [14].
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Ibrahim, M.M. (1989). Cardiac structure and function after treatment with adrenergic blocking agents. In: Safar, M.E., Fouad-Tarazi, F. (eds) The Heart in Hypertension. Developments in Cardiovascular Medicine, vol 98. Springer, Dordrecht. https://doi.org/10.1007/978-94-009-0941-0_28
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DOI: https://doi.org/10.1007/978-94-009-0941-0_28
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