Multiform accelerated idioventricular rhythm in acute myocardial infarction

Area of Science:

• Cardiology
• Electrophysiology
• Internal Medicine

Background:

• Accelerated idioventricular rhythm (AIVR) is a ventricular arrhythmia that can occur during acute myocardial infarction (AMI).
• AIVR is typically a unifocal arrhythmia, but multiform variants have been described.
• The clinical significance of multiform AIVR in the context of AMI requires further investigation.

Observation:

• This report describes two cases of multiform AIVR in patients experiencing acute myocardial infarction.
• The presence of multiform AIVR was identified through electrocardiographic monitoring.

Findings:

• In the observed cases, the clinical evolution of multiform AIVR did not differ from that of the more commonly seen unifocal AIVR.
• No significant variations in patient outcomes or management were associated with the presence of multiform AIVR compared to unifocal AIVR.

Implications:

• The findings suggest that multiform AIVR may not represent a distinct prognostic risk factor in acute myocardial infarction.
• Further research is warranted to confirm these observations in a larger patient cohort.
• Understanding the behavior of different AIVR variants can refine risk stratification and treatment strategies for myocardial infarction patients.