Influence of sympathetic nerve activity on renal haemodynamics and release of renin. A preliminary communication.

The role of the sympathetic nerve system is still unknown in different types of hypertension. The procedure used in the evaluation of suspect renovascular hypertension has been revised in such a way that renal blood flow, renal arterial blood pressure and plasma renin activity in renal vein could be determined prior to and after splanchnic blockade. A new divice-videovolumeter-has been used to investigate the blood flow. Some preliminary data are given.