Left ventricular apical aneurysm following primary percutaneous coronary intervention

Area of Science:

• Cardiology
• Interventional Cardiology
• Cardiac Imaging

Background:

• Left ventricular apical aneurysm (LVAA) is a known complication of acute anterior myocardial infarction (MI).
• Understanding predictors of LVAA is crucial for improving patient outcomes following primary percutaneous coronary intervention (PCI).

Purpose of the Study:

• To investigate the clinical features and predictors of LVAA in patients undergoing primary PCI for acute anterior MI.
• To identify factors associated with LVAA development in the chronic phase post-MI.

Main Methods:

• Retrospective analysis of 161 patients with acute anterior MI who underwent primary PCI and chronic phase echocardiography.
• Univariate and multivariate logistic regression analyses were used to identify predictors of LVAA.
• Key variables assessed included peak CK, heart rate at discharge, final TIMI flow grade, and final myocardial blush grade (MBG).

Main Results:

• LVAA developed in 18.0% of patients in the chronic phase.
• Predictors of LVAA included higher peak CK levels (OR 1.24), increased heart rate at discharge (OR 1.39), final TIMI flow grade ≤2 (OR 6.95), and final MBG ≤2 (OR 4.33).
• Initial TIMI flow grade and collateral flow grade were not associated with LVAA development.

Conclusions:

• Peak CK, heart rate at discharge, and suboptimal final TIMI flow or MBG are significant predictors of LVAA.
• Achieving TIMI flow grade 3 during primary PCI may be important in preventing LVAA development.
• These findings highlight the importance of optimizing reperfusion strategies to reduce LVAA risk.