Objective: To study the efficacy and T/P ratio of three kinds of antihypertensive drugs in essential hypertension monotherapy and the effect on microcirculation.

• 目的:比较三类(氨氯地平、苯那普利、比索洛尔)长效降压药降压疗效、T/P比值及对微循环的影响,以期为临床用药提供帮助。