Accelerated Idioventricular Rhythm is a cardiac rhythm where the electrical impulses originate within the ventricles at a rate faster than the typical idioventricular rhythm. It is characterized by a regular, wide QRS complex rhythm and is often considered a transient, benign arrhythmia.
Heart Rate: 60 to 100 beats per minute
Rhythm: Regular
P wave: Absent
PR Interval: Not applicable
QRS: Greater than 0.12 seconds
Accelerated Idioventricular Rhythm is diagnosed through an electrocardiogram (ECG) or continuous cardiac monitoring. Characteristic features include a regular rhythm with wide QRS complexes and the absence of a preceding P wave or a dissociated P wave morphology.
If AIVR is associated with reversible factors (e.g., ischemia, drug toxicity), addressing these causes is essential. Temporary Pacing: In cases of bradycardia-related symptoms or hemodynamic compromise, temporary pacing may be considered while awaiting further evaluation or resolution of the rhythm. Permanent Pacing: For persistent cases of symptomatic AIVR, permanent pacemaker implantation may be considered to restore a more normal cardiac rhythm.