近年来病态窦房结综合征(以下简称SSS)已成为一种常见的心血管疾病,其基本病理生理改变是窦房结起搏功能低下,或起搏脉冲传出障碍。SSS可以引起一大群临床症状谱,表现为各种各样的心电图异常,但这些大多缺乏特异性。所以寻求一个客观的,较为精确特异的SSS诊断方法是十分重要和迫切的。目前检查窦房结功能的方法包括:阿托品试验,异丙基肾上腺素试验,运动试验,按压颈动脉窦,乏氏动作,Holter心电图监测,电生理学诊断等。其中电 Sick sinus syndrome in recent years (hereinafter referred to as SSS) has become a common cardiovascular disease, the basic pathophysiological changes are sinoatrial pacing dysfunction, or pacing pulse out of the barrier. SSS can cause a large group of clinical symptoms spectrum, manifested as a variety of ECG abnormalities, but most of these lack of specificity. Therefore, it is very important and urgent to seek an objective and accurate method of SSS diagnosis. Current methods of checking sinus node function include: atropine test, isoproterenol test, exercise test, press the carotid sinus, Forsythia action, Holter ECG monitoring, electrophysiology diagnosis. Among them electricity