Abstract
Nine patients with renal disease, hypertension and impairment of renal function of varying degree have been studied before and during treatment with frusemide. In three patients observations were repeated following the addition of propranolol. In most cases frusemide resulted in a reduction of both lying and standing blood pressure but for the group the fall was not significant (P>0.05). In all patients a reduction in exchangeable sodium was achieved and the fall was significant for the group (P<0.05); this was accompanied by a significant increase in serum creatinine (P < 0.05). Plasma renin activity was increased in all patients during treatment with frusemide and the change for the group was significant (P<0.05). The addition of propranolol resulted in a marked reduction in renin in the three patients treated but in two blood pressure actually rose; in these two sodium retention had occurred following the introduction of propranolol.
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