Abstract
An analysis of the plasma renin levels in relation to the incidence of severe cardiovascular complications (coronary thrombosis, stroke, ruptured aortic aneurysm) was made in 325 patients with various types of hypertension. These patients had one to four measurements of plasma renin activity taken under standard conditions of sodium intake and posture in the period 1963-68. The follow-up was 5 to 10 years in the four groups of hypertensive patients (essential hypertension, malignant hypertension, hypertension secondary to renal parenchymatous disease and hypertension caused by, or associated with, renal artery obstruction). For all 325 patients, the incidence of such complications was 23.6, 20.4 and 44.7% in the low, normal and high renin groups. These findings are at variance with the claim that renin constitutes a serious risk factor in hypertensive patients, especially if it is isolated from other parameters such as the level of diastolic pressure, the adequacy of kidney function, the effectiveness of dietary and drug management of hypertension, and especially the presence or absence of atherosclerotic lesions of the large vessels at the time of the renin determination.
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Selected References
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