[Aneurysms in acute myocardial infarction (multicenter studies)]

Area of Science:

• Cardiology
• Clinical Medicine
• Medical Research

Background:

• Acute myocardial infarction can lead to serious complications.
• Post-infarction cardiac aneurysm is a recognized but less understood sequela.
• Understanding the clinical course and frequency of these aneurysms is crucial for patient management.

Purpose of the Study:

• To determine the frequency of cardiac aneurysms after acute myocardial infarction.
• To investigate the clinical course and associated factors of post-infarction aneurysms.
• To explore the relationship between aneurysm localization and clinical outcomes.

Main Methods:

• A cohort of 730 patients with acute myocardial infarction was studied.
• Diagnosis of aneurysm was confirmed using echocardiography and other clinical criteria.
• Patients were monitored for arrhythmias and heart failure severity (Killip-Kimball classification).

Main Results:

• Post-infarction aneurysms were identified in 5.8% of patients (42/730).
• Antero-lateral aneurysms were more common (85.7%) than inferior-posterior (14.3%).
• No significant differences in ventricular arrhythmia frequency or heart failure progression were observed between patients with and without aneurysms.

Conclusions:

• The incidence of post-infarction cardiac aneurysms is relatively low.
• Aneurysm localization did not correlate with contractility disturbances or heart failure severity.
• Ventricular arrhythmias and heart failure progression appear independent of aneurysm presence or localization post-myocardial infarction.