Plasma Renin Levels and Vascular Complications in Hypertension

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Abstract
Plasma renin levels, measured in 39 untreated patients in 1967, under conditions of sodium loading and sodium depletion have been related to the incidence of stroke and myocardial infarction. Renin levels were not significantly different in patients with or without vascular complications. Out of 13 patients with persistently low renin levels 6 had suffered either a stroke or a myocardial infarction and 7 had not. Plasma renin levels were also measured in 116 treated hypertensive patients. There was no relation between plasma renin level and vascular complications. It is concluded that levels of plasma renin are not a reliable index of the probability of hypertensive patients suffering a stroke or myocardial infarction.