[Possibilities of predicting the hypotensive effect of surgical treatment of vasorenal hypertension].

The results of long-term (1 to 6 years) follow-up of 43 patients operated on for vasorenal hypertension were compared to preoperative data. The predictive value of the duration of arterial hypertension, patient's age, plasma renin activity coefficient and quantitative intrarenal flow data obtained at angiography with a simultaneous droperidol test, was determined. Intrarenal flow of the contralateral kidney was shown to be the most valuable predictive parameter for the prognosis of the hypotensive effect of the operation. Predictive use of other parameters, such as the duration of arterial hypertension, patient's age, plasma renin activity coefficient yielded higher rates of false-positive and false-negative results.