Coronary occlusion resulted in significant diminution in amplitude of action potential (APA) and maximal depolarization rate of phase O (dv/dt), and decrease in action potential duration at 50% repolarization (APD_(50)) and 90% repolarization (APD_(90)).

• 阻断冠脉引起动作电位振幅(APA)和零期最大除极速度(dv/dt)明显降低以及复极50%25时程(APD_(50))和复极90%25时程(APD_(90))明显缩短。