The accelerated idioventricular rhythm occurs when depolarisation rate of a normally suppressed focus increases to above that of the "higher order" focuses (the sinoatrial node and the atrioventricular node). This most commonly occurs in the setting of a sinus bradycardia.
AIVR appears similar to ventricular tachycardia but is benign and doesn't need any treatment. It can most easily be distinguished from VT in that the rate is less than 120 and usually less than 100 bpm.
Sudden appearance of idioventricular rhythm during inhalational induction with halothane in a child with congenital cataract
Oct 01, 2008; Sir, An 11-year-old American Society of Anesthesiologists I female child with bilateral congenital cataract was scheduled for...