[Accelerated idioventricular rhythm before reperfusion. what does it mean? A Case Report].

Accelerated idioventricular rhythm has traditionally been recognized as a benign arrhythmia. During an acute myocardial infarction, it is considered a marker of successful reperfusion, though the evidence is controversial. Usually, this arrhythmia is transitory and does not cause hemodynamic compromise; however, its presence may have prognostic value and not necessarily be a benign marker. The recognition of this arrhythmia is always important as well as its recording on a 12-lead electrocardiogram. We present the case of an adult male patient with inferior ST-segment elevation myocardial infarction, who presented accelerated idioventricular rhythm without reperfusion therapy.