Central, peripheral, and renal hemodynamics in patients with hypertensive disease during long-term monotherapy with enalapril alone and in combination with hydrochlorothiazide (according to the data of RU-003 study)

Abstract

The study was undertaken to examine the impact of long-term therapy with enapril alone and in its fixed combination with hydrochlorothiazide (renitec/co-renitec, MSD) on the time course of changes in central, peripheral, and renal hemodynamic parameters and on the status of cardiopulmonary reflex in patients with hypertensive disease. The study included 35 patients with Stages I-II arterial hypertension. Therapy with renitec/co-renitec was performed for 6 months, starting with its dose of 10 mg, followed by titration up to 40 mg and switching to a combined therapy. A decrease in blood pressure in the groups of patients receiving therapy with enalapril alone and in combination with hydrochlorothiazide was found to be associa ted mainly with diminished peripheral vascular resistance, which was followed by a higher volume blood flow rate in the forearm-and a better sensitivity of the cardiopulmonary baroreflex. Moreover, long-term use of enalapril both alone and in combination with thiazide diuretic was attended by improved renal hemodynamics.