The effects of monotherapy with the angiotensin converting enzyme inhibitor benazepril (10 mg once daily) on cardiovascular baroreceptor reflexes were determined in 10 patients with essential hypertension using a randomized, double-blind, placebo-controlled, cross-over protocol. Early sino-aortic baroreceptor/heart rate reflex resetting was apparent with acute treatment; this effect persisted throughout the active treatment period. Changes in baroreflex sensitivity did not appear to mediate the hypotensive effect of benazepril.
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