自1895年Kirstein首次借助喉镜行气管内插管,1913年Jackson正式确立以直接喉镜完成气管内插管的理论,至今气管内插管在临床麻醉、急诊抢救、呼吸支持方面发挥着不可替代的作用,同时也存在着一些不良反应和并发症,尤其是心血管反应,在窥喉和气管插管过程中,表现为血压急剧升高(收缩压平均升高6 kPa)、心率增快、心律失常及心肌缺血。此反应对原有高血压、动脉硬化、缺血性或瓣膜性心脏病、高龄、病重及心功能受损的患者常造成不利影响,甚至在插管过程中 Since 1895 Kirstein first laryngoscope endotracheal intubation, 1913 Jackson formally established the direct laryngoscope to complete the endotracheal intubation theory, endotracheal intubation in clinical anesthesia, emergency rescue, respiratory support plays an irreplaceable There are also some adverse reactions and complications, especially cardiovascular reactions, manifested as a sharp increase in blood pressure (systolic blood pressure 6 kPa average increase) in the process of snoring and tracheal intubation, heart rate increased, Arrhythmia and myocardial ischemia. This response to the original high blood pressure, atherosclerosis, ischemic or valvular heart disease, elderly, sick and impaired cardiac function often adversely affected, and even during intubation