The cause of<unk>  sinus tachycardia is unknown.  It is a diagnosis of exclusion after all the specific physiological and psychological triggers of sinus tachycardia have been excluded.  The diagnosis of IST is based on the presence of a persistent and recurrent sinus tachycardia on EKG that is otherwise unexplainable.
Inappropriate sinus tachycardia causes
Sinoatrial arrest causes
Supraventricular tachycardia causes
Accelerated idioventricular rhythm causes
Third degree AV block causes
Sinus bradycardia causes
Sinus tachycardia causes
Wide complex tachycardia causes