Sodium excretion and sympathetic activity in relation to severity of hypertensive disease.

The relationship between the severity of hypertensive disease and sodium excretion and sympathetic activity has been studied in subjects of the same age and sex derived from screening a total population. 19 untreated subjects with casual blood-pressure (B.P.

Plasma renin activity and hypertensive organ manifestations in 50-year-old males.

From a screening examination in a randomly selected third of the 50-year-old male population in Göteborg, Sweden, a 10% subsample was selected as a reference group (n=80). All untreated persons with SBP greater than 175 or DBP greater than 115 mmHg on two separate occasions made up the hypertension group (n=35). The reference group and the hypertension group were subjected to the same investigations, including BP measurement before and after rest and determination of plasma renin activity (PRA), urinary sodium and norepinephrine excretion and GFR.

Non-invasive assessment of the heart in the hypertensive.

The prevalence of signs of heart involvement was studied non-invasively with orthogonal and conventional ECG, apexcardiogram, carotid pulse tracing and phonocardiogram in a group of untreated hypertensives (n = 35) and a reference group (n = 73). All were derived by screening a random population sample of 50-year-old men.