心脏电不稳定是心脏猝死重要因素之一。交感神经兴奋使心脏电势降低,迷走神经兴奋使电势升高。改善自主神经系统则能增进心脏电稳定性,从而降低猝死发生率。作者等用已愈合心肌梗塞的狗作急性心肌缺血所致 Cardiac electrical instability is one of the important factors of sudden cardiac death. Sympathetic excitement reduces the potential of the heart and excitement of the vagus nerve increases the potential. Improving autonomic nervous system can improve cardiac electrical stability, thereby reducing the incidence of sudden death. The author used to have a myocardial infarction dog healing acute myocardial ischemia