Furthermore, ATP could abolish the early after depolarization induced by CsCl and had biphasic effect on delayed after depolarization.

• （3）ATP能有效抑制CsCl诱发的早期后除极（EAD），而对其诱发延迟后除极（DAD）具有双重作用，即对DAD先有短暂促进，继而迅速抑制。