<unk>  (aka verapamil sensitive<unk>  is a type of idiopathic<unk> .  Most<unk>  is seen in structurally abnormal hearts, but<unk>  can sometimes be seen in hearts with no structural defects (~10% of cases of<unk> . <unk>  is called idiopathic in these circumstances.<unk>  is a benign rhythm caused by re-entry involving one of the fascicles of the conduction system.
Fascicular VT
AV reentrant tachycardia
Wide complex tachycardia
Mahaim type preexcitation
Narrow complex tachycardia
Paroxysmal AV block
Ventricular escape beat
Sinoatrial arrest