临床实践表明以缓慢性节律为表现的心脏地骤停患者的心肺复苏成功率 ,明显低于室颤及室扑患者 ,院内存活率仅为 0～ 3 % [1] 。而且此类患者对大剂量肾上腺素治疗反应差。近年来国内外学者提出 ,心肌缺血缺氧时释放大量腺苷 ,大量腺苷作用于心脏腺苷受体 ,抑制心肌兴奋导致心肌 Clinical practice has shown that the success rate of cardiopulmonary resuscitation in patients with cardiac arrest who manifest in slow rhythm is significantly lower than that in patients with ventricular fibrillation and ventricular flutter. The in-hospital survival rate is only 0-3% [1]. And such patients respond to high doses of epinephrine poor response. In recent years, scholars at home and abroad have proposed that a large amount of adenosine is released during myocardial ischemia and hypoxia, a large amount of adenosine acts on cardiac adenosine receptor, and myocardial excitability is inhibited to cause myocardial