A<unk>  escape complex is a normal response that may result from excessive vagal tone on the SA node (e.g. digoxin toxicity), a pathological slowing of the SA discharge, or a complete AV block.
Junctional escape beat
Ventricular escape beat
Junctional rhythm
Electrical alternans
Infradian rhythm
High frequency QRS
Ultradian rhythm
Ectopic beat