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临床研究证实,高血压可增加非心脏手术围手术期心肌缺血的发生率[1]。高血压病患者非心脏手术的安全性成为心血管内科医师和外科医师共同关注的问题,围手术期心肌缺血与过度交感神经兴奋引起心率增快有关[2]。β受体阻滞剂是临床广泛应用心血管疾病的一类药物,围手术期应用β
Clinical studies confirm that hypertension can increase the incidence of perioperative myocardial ischemia in non-cardiac surgery [1]. The safety of non-cardiac surgery in hypertensive patients is a common concern among cardiovascular physicians and surgeons. Perioperative myocardial ischemia is associated with increased heart rate caused by hyperactivity of sympathetic nerves [2]. β-blockers are widely used in clinical medicine a class of cardiovascular disease, perioperative application of β