Plasma Renin Activity and Blood Pressure in 89 Patients Receiving Maintenance Haemodialysis Therapy
- 30 December 1972
- Vol. 4 (5843), 749-753
- https://doi.org/10.1136/bmj.4.5843.749
Abstract
Blood pressure, plasma renin activity, plasma sodium concentration, plasma potassium concentration, dietary sodium intake, and duration of dialysis have been measured under standard conditions in 89 patients on maintenance haemodialysis. No significant relation was found between plasma renin activity and blood pressure. Statistically significant correlations were found between plasma renin activity and plasma sodium concentration and between plasma renin activity and dietary sodium intake. Only one patient was found to have uncontrollable hypertension associated with a markedly raised plasma renin activity. Reasons are given for not performing bilateral nephrectomy in this patient. We believe the low incidence of uncontrollable hypertension and hyperreninaemia in our patients to be due to their slow introduction to haemodialysis, thus preventing violent swings in body weight, blood pressure, and renin secretion. Although plasma renin activity did fall with duration of dialysis, all 15 patients who have been on maintenance dialysis for longer than five years have normal levels.Keywords
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