Andersen C, Madsen G M
Department of Anaesthesia, Odense University Hospital, Denmark.
Anaesthesia. 1990 Jun;45(6):472-6. doi: 10.1111/j.1365-2044.1990.tb14339.x.
A new generation of pacemakers has been developed in recent years which adjust the pacing rate according to changes in physiological variables. The selected parameters are affected during physical activity that involves an increased heart rate in healthy humans. The variables include body movements, QT interval, breathing, temperature, myocardial contractility, oxygen saturation and changes in blood pH which may be influenced during general anaesthesia, and can lead to unphysiological, high, pacing rates. It is important to be familiar with the pacemaker and its functions before administration of anaesthesia in order to prevent complications. Rate-responsive pacemakers in such situations should be programmed to exclude the rate-responsive function.
近年来已研发出新一代起搏器，其可根据生理变量的变化来调整起搏频率。在健康人进行导致心率增加的体育活动时，所选参数会受到影响。这些变量包括身体运动、QT间期、呼吸、体温、心肌收缩力、血氧饱和度以及血液pH值的变化，而在全身麻醉期间这些变量可能会受到影响，并可能导致不生理的高起搏频率。在实施麻醉前熟悉起搏器及其功能很重要，以预防并发症。在这种情况下，应将频率适应性起搏器设置为排除频率适应功能。
