Slow ventricular tachycardia is also known as an “accelerated idioventricular rhythm” or “AIVR” and is a common rhythm after an MI. An idioventricular rhythm — not accelerated — has a ...

Medically reviewed by Anisha Shah, MDMedically reviewed by Anisha Shah, MD Idioventricular rhythm happens when the heartbeat originates from the heart's lower chambers at a slower than normal rate.

An idioventricular rhythm is very similar to ventricular tachycardia except the ventricular rate is less than 60 beats per minute. All other characteristics of VT apply; this includes the presence ...